Maytag Washer MFS18 User Manual

INSTALLATION INSTRUCTIONS  
MFS18, MFS25, MFS35, MFS55  
COMMERCIAL WASHER  
TABLE OF CONTENTS  
WASHER MAINTENANCE ......................................................11  
WASHER SAFETY .................................................................. 2  
INSTALLATION REQUIREMENTS ......................................... 3  
Tools and Parts...................................................................... 3  
Optional Equipment .............................................................. 3  
Location Requirements ........................................................ 3  
...Electrical Requirements ........................................................ 6  
Water Supply Requirements ................................................. 7  
Drain Requirements .............................................................. 7  
Laundry Product Dispenser Pumps ...................................... 7  
INSTALLATION INSTRUCTIONS ........................................... 8  
Inspection and Storage ........................................................ 8  
Mechanical Installation ......................................................... 8  
Remove Shipping Brackets .................................................. 8  
Electrical Connection ........................................................... 9  
Water Supply Connection .................................................... 9  
Drain Connection .................................................................. 9  
Laundry Product Supply Pump Connection ......................... 9  
Complete Installation .......................................................... 10  
Break-In Period .................................................................. 10  
Controls Troubleshooting ................................................... 10  
Maintenance Schedule..........................................................11  
Vibration Switch Adjustment and Function Test ...................11  
Belt Inspection, Adjustment, and Replacement....................12  
Door Seal Adjustment and Replacement..............................12  
Fuse Replacement ................................................................13  
Opening Door Without Power ..............................................13  
DIMENSIONS AND TECHNICAL SPECIFICATIONS..............14  
Dimensions............................................................................14  
Component Locations...........................................................15  
Technical Specifications........................................................16  
Torque Specifications............................................................16  
W10214572C  
 
INSTALLATION REQUIREMENTS  
Location Requirements  
Tools and Parts  
Washers should be installed on a level concrete floor on the  
ground level of a building; they can also be installed on an  
elevated concrete pad up to 12" (300 mm) above the surrounding  
floor. Consult a structural engineer to approve other locations.  
The models MFS18 and MFS25 washers can also be mounted  
on an elevated metal base up to 12" (300 mm) high.  
Gather the required tools and parts before starting installation.  
Read and follow the instructions provided with any tools listed  
here.  
Tools needed:  
These washers must be installed by professional installers. The  
installer should have a full compliment of standard SAE and  
metric hand tools as well as other specialized tools as required.  
Proper installation is your responsibility. The installation must  
meet all governing codes and ordinances.  
Additional materials required:  
You will need:  
Additional materials required vary with the type of installation.  
The customer is responsible for supplying additional hardware  
and adapters as necessary.  
The washer should be located in a building and not directly  
exposed to the weather. The temperature of the building  
should be 40–95°F (5–35°C) during operation.  
Parts supplied:  
A hot water heater set between 120–160°F (49–80°C).  
Remove parts bag from washer drum. Check that all parts were  
included. The number of parts supplied varies with model.  
Valved hot and cold water supply (3/4" male NPT fitting)  
within 4 ft. (1.2 m) of the washer with a water pressure  
between 43 and 73 PSI (0.3–0.5 MPa).  
A dedicated, GFCI-equipped circuit for each washer (see  
“Electrical Requirements”).  
Molded rubber drain hose and band clamp  
Rubber washers for the hoses (4 or 6)  
Water supply hoses (2 or 3)  
Adequate sanitary sewer drainage located behind each  
washer.  
Optional Equipment  
The following optional equipment is available for these washers.  
A solid concrete floor or slab capable of withstanding the  
weight and vibration produced by the washer. The maximum  
slope of the floor is 1" (25 mm) under the washer. A rough  
concrete surface is preferable to a smooth or covered  
surface when the washer is not secured, to keep the washer  
from walking during extraction cycles.  
Steam Heater Kit  
Steam heating kits is available for Model MFS55 only.  
To add a steam kit to your washer, order the kit specified  
in the table below:  
Minimum Installation Clearances:  
The location must be large enough to allow the washer door to  
open completely.  
Model  
Steam Kit Number  
MFS55PNA  
W10308483  
There should be adequate access behind and above the  
washer for maintenance and service.  
3
 
Dim.  
Model  
27.6" (701 mm)  
MFS18  
MFS25  
MFS35  
MFS55  
25.99"  
(660 mm) (660 mm)  
32.67"  
(830 mm)  
35.46"  
(901 mm)  
A
B
C
D
25.99"  
28.15"  
(715 mm)  
32.48"  
(825 mm)  
38.39"  
(975 mm)  
36.40"  
(925 mm)  
42.50"  
44.90"  
51.00"  
56.30"  
(1080 mm) (1140 mm) (1300 mm) (1430 mm)  
44.50" 48.40" 58.70" 63.60"  
(1130 mm) (1230 mm) (1490 mm) (1620 mm)  
Installation on an elevated base  
NOTES:  
P
P
Front View  
Models MFS35 and MFS55 are mountable on either a metal  
base or an elevated cement slab; however, they must be  
adequately secured.  
MFS18  
MFS25  
MFS35  
MFS55  
0.6" (15 mm)  
0.6" (15 mm)  
0.8" (20 mm)  
0.8" (20 mm)  
P
Minimum clearances should be maintained when installing  
washers in an elevated position.  
* Door may not open completely with this minimum clearance  
Fixed Installation on Concrete Floor or Elevated  
Concrete Pad (all models)  
All washer models can be installed on an elevated cement slab.  
The base must be able to withstand both the load and vibration  
of the washer. The washer must be secured with anchor bolts  
(See “Installation Instructions”). Install the 4 anchors before final  
installation of the washer.  
23.6" (600 mm)  
12"  
(300 mm)  
max. elevation  
4" (100 mm)  
Side View  
Freestanding Installation on Elevated Concrete Pad  
(Models MFS18 and MFS25 only)  
Product Dimensions  
General product dimensions are shown below. See Technical  
Specifications for dimensions not shown here.  
Models MFS18 and MFS25 can be installed on an elevated  
concrete pad without bolts by installing a metal channel at the  
front of the concrete pad to secure the front washer mounting  
feet. Specifications of the metal channel are shown in the figure  
below. The channel must be firmly secured with anchors or  
self-tapping cement screws.  
0.63"  
(15 mm)  
2.38"  
(60 mm)  
C
0.160"  
(4 mm)  
min.  
12"  
(300 mm)  
max.  
D
B
A
4
 
Dim.  
Model  
Elevated Metal Base for Secured Installation  
MFS18  
MFS25  
MFS35  
MFS55  
X4  
3.81"  
3.42"  
1.97"  
1.06"  
The elevated metal base for a secured installation may be  
fabricated from a metal U-channel as shown in the illustration  
below. The maximum allowable height of the base is 12"  
(300 mm). The base must be able to withstand both the load  
and vibration of the washer. The base must be adequately  
secured with anchor bolts or cement anchors.  
(97 mm)  
(87 mm)  
(50 mm)  
(27 mm)  
X5  
(min.)  
4.53"  
(115 mm)  
4.53"  
(115 mm)  
5.32"  
(135 mm)  
4.76"  
(121 mm)  
X6  
X7  
5.12"  
(130 mm)  
5.12"  
(130 mm)  
3.15"  
(80 mm)  
1.55"  
(39.5 mm)  
2.76"  
(70 mm)  
2.76"  
(70 mm)  
1.77"  
(45 mm)  
6.69"  
(170 mm)  
Elevated Metal Base for Freestanding Installation  
(Models MFS18 and MFS25 only)  
A
The elevated metal base for a freestanding installation  
must be constructed in the same way as the base for a secured  
installation. An additional U channel must be welded or bolted  
to the top of the front rail to secure the front washer mounting  
feet (see illustration below).  
Minimum material thickness 0.160" (4 mm)  
U-Channel  
0.160"  
(4 mm)  
min.  
12"  
(300 mm)  
max.  
A
Anchor Bolt Placement  
B
Minimum material thickness 0.160" (4 mm)  
X5  
X7  
U-Channel  
X4  
2.38"  
(60 mm)  
0.63"  
(15 mm)  
Outline of cabinet  
Outline of frame  
Outline of riser  
Inside of riser  
B
C
12"  
0.19"  
(300 mm)  
(5 mm)  
max.  
X2  
X1  
X6  
B
X3  
D
A
X3  
Dim.  
Model  
MFS18  
MFS25  
MFS35  
MFS55  
A
B
25.99"  
25.99"  
32.67"  
35.46"  
(660 mm)  
(660 mm)  
(830 mm)  
(901 mm)  
28.15"  
(715 mm)  
32.48"  
(825 mm)  
38.39"  
(975 mm)  
36.40"  
(925 mm)  
C
17.91"  
(455 mm)  
22.24"  
(565 mm)  
32.09"  
(815 mm)  
33.30"  
(846 mm)  
D
22.05"  
(560 mm)  
22.05"  
(560 mm)  
28.15"  
(715 mm)  
31.50"  
(800 mm)  
X1  
X2  
X3  
1.14"  
1.14"  
1.18"  
1.77"  
(29 mm)  
(29 mm)  
(30 mm)  
(45 mm)  
3.46"  
(88 mm)  
3.46"  
(88 mm)  
1.97"  
(50 mm)  
1.06"  
(27 mm)  
1.97"  
(50 mm)  
1.97"  
(50 mm)  
2.26"  
(57.5 mm)  
1.98"  
(50.5 mm)  
5
 
Connection to Washer  
Electrical Requirements  
It Is Your Responsibility  
These washers were designed for direct wiring into the power  
supply. The washer must be electrically grounded in accordance  
with local codes or, in the absence of local codes, with the  
National Electrical Code, ANSI/NFPA 70, latest edition, or  
Canadian Electrical Code, CSA C22.1, and all local codes and  
ordinances.  
To contact a qualified electrical installer.  
To be sure that the electrical connection is adequate and in  
conformance with the National Electrical Code, ANSI/NFPA  
70-latest edition, or Canadian Electrical Code CSA C22.1,  
and all local codes and ordinances.  
Direct wire installation:  
A copy of the above code standards can be obtained from:  
National Fire Protection Association, One Batterymarch Park,  
Quincy, MA 02269.  
Power supply cable must match power supply (4-wire or 3-wire)  
and be:  
Flexible armored cable or nonmetallic sheathed copper cable  
(with ground wire), in a flexible metallic conduit. All current  
carrying wires must be insulated.  
Copper wire of appropriate gauge for amperage requirement  
(see table below). Stranded wire is recommended. Do not  
use aluminum wire.  
To supply the required 3 or 4 wire, single phase,  
208-240 volt, 60 Hz., AC electrical supply on a separate  
circuit. Circuit capacity is dependent on washer size and  
connection type and is shown in the tables below. A time-  
delay fuse or circuit breaker is recommended. Installation  
of a GFCI is also recommended. Connect to an individual  
branch circuit. Do not fuse the neutral or grounding circuit.  
A separate ground wire is recommended if codes permit.  
It is recommended that a qualified electrician determine the  
ground path is adequate.  
Coin-operated washers do not have an emergency stop  
switch. A remote emergency stop device must be installed.  
The switch must be easily accessable to all users and meet  
the requirements of ISO13850-category 0.  
Minimum Recommended  
Conductor Gauges  
Fuse or Breaker  
Minimum AWG*  
15A  
20A  
14  
12  
Phase (Voltage)  
*Copper stranded wire recommended.  
Model  
MFS18  
MFS25  
MFS35  
MFS55  
1 (208–240V)  
15A  
3 (208–240V)  
15A  
Equipment Potential Bonding:  
In addition to the individual washing machine ground wires  
used in conjunction with the power supply wiring, all washers  
must be connected with one another using separate insulated  
conductors #3 in the illustration below. The first and last washers  
will subsequently be connected to a protective conductor that  
completes the loop of the protective ground circuit, #1 in the  
illustration.  
The external protective connection points that serve for this  
purpose (see illustration).  
The wire size of the protective conductor #1 must be at least as  
large as the insulated conductors #3 being used to interconnect  
the washing machines.  
15A  
15A  
20A  
20A  
Not Applicable  
20A  
NOTES:  
Connecting these washers to IT power supplies requires  
special considerations.  
When installing multiple single phase washers into an  
existing 3-phase power supply, alternating the phase used  
as the hot leg is recommended to evenly distribute power on  
the system. See illustration.  
2
3
3
3
4
5
PE  
L1 L2 L3  
PE  
L1 L2 L3  
PE L1 L2 L3  
3
1
1. Protective grounding structure  
2. External protective conductor connection point  
3. Protective conductor  
4. Grounding identification  
5. Washer (rear view)  
6
 
The drain pipe must be able to handle wastewater from all  
of the washers, so the diameter of the drain pipe required is  
dependent on the number of washers in the line. Sanitary drains  
must be vented and meet all local and municipal codes. The  
suggested drain diameter for one to three washers is shown  
in the illustration below.  
Water Supply Requirements  
Water supply requirements:  
Valved hot and cold water supply with a water pressure  
between 14.5 and 116 PSI (100–800 kPa). Water pressure  
between 43 and 73 PSI (300–500 kPa) is recommended.  
5"  
4"  
3"  
(76 mm)  
(127 mm)  
(102 mm)  
A hot water heater or boiler supplying an adequate  
amount of water between 120–160°F (49–80°C). The water  
temperature within the washer is controlled to a maximum  
temperature that is set in the program. The amount of hot  
water required to wash a load of laundry is dependent on  
many factors, including the hot and cold water temperature  
and the wash program selected. Average amounts of hot  
water required to wash one load of laundry are shown in  
the table below.  
Flow  
Hot water requirement per load  
Washer Model  
MFS18  
Hot water per load*  
4.0 gal. (15 L)  
MFS25  
MFS35  
4.5 gal. (16 L)  
8.0 gal. (31 L)  
Drain Diameter Requirements  
MFS55  
10.5 gal. (40 L)  
Laundry Product Dispenser Pumps  
PN Models  
*Approximate values. Assumes 140°F (60°C) hot water supply and  
70°F (21°C) cold water supply.  
Physical and electrical control connections for external liquid  
laundry product pumps are included in all PN models. If laundry  
product dispenser pumps will be used, the pumps should have  
an adequate flow rate to deliver the required amount of product  
to the dispenser within 30 seconds. Relay supply voltage was set  
at the factory. Check your material list for supply voltage.  
It is also necessary to connect all available water inlets to a  
water supply. If three inlets are present, then two should be  
cold water—one a hard water supply, and the other a soft  
water supply. If a hard and soft connection is not available,  
connect to whatever cold water supply is available.  
PD Models  
Drain Requirements  
It is also possible to connect external liquid laundry product  
pumps to PD model washers, but the following additional  
installation steps are required:  
The washer has a 3" (75 mm) water drain on its rear side. A  
molded drain hose that extends up to 43" (1.09 m)and hose  
clamp are supplied with the washer. To maintain washer  
performance, do not reduce the diameter of the drain pipe.  
It is necessary to complete the physical connection between  
the tubing connector not supplied with PDs, and the  
dispenser.  
The washer drain may drain into a waste channel or directly  
to a drain.  
The electrical control connection to the liquid product pumps  
is made on the control board.  
The waste channel cannot be located under the washer.  
There should be at least 4" (100 mm) between the back  
of the washer and the middle of the waste channel (see  
illustration).  
See page 9, “Laundry Product Supply Pump Connection” for  
additional information.  
The waste channel must be lower than the drain pipe.  
There should be at least a 3/4" (20 mm) air gap between  
the bottom of the drain and the water level in the channel.  
X
4"  
3/4"  
(19 mm)  
(102 mm)  
Minimum Waste Channel Measurements  
MFS18  
MFS25  
MFS35  
MFS55  
X
2.9"  
(73 mm)  
2.2"  
(55 mm)  
5.5"  
(140 mm)  
2.9"  
(73 mm)  
7
 
INSTALLATION INSTRUCTIONS  
3. Level the washer first side to side, then front to back using  
metal shims. Be sure that the washer does not tip from side  
to side. Tighten the anchor bolts. Thread on and tighten  
the locking nuts.  
Inspection and Storage  
Freestanding installation on level or elevated base  
(Models MFS18 and MFS25 only):  
1. Stand the washer upright. Slide or lift the washer into place.  
NOTE: If mounting on a metal base or elevated slab, be sure  
the front rubber feet are inside the metal channel.  
2. With washer in final position, place a level on top of the  
washer, rst side to side; then front to back. If the washer  
is not level, adjust the legs of the washer up or down with  
a 1/2" (13 mm) wrench until the washer is level. Be sure  
that the washer does not rock. Tighten the locking nuts.  
1. Inspect carton for damage. Inspect  
washer if carton shows signs of  
damage. Do not remove washer  
from pallet.  
1. Concrete floor  
2. Metal channel  
3. Rubber foot  
2. Verify model number and serial  
number on the data plate with  
your order.  
4
3
4. Washer frame  
3. Store inside in a temperature  
2
Data Plate  
controlled environment 33–130°F  
1
(1–55°C). Do not expose washer to the weather.  
Mechanical Installation  
Metal Channel  
1. Move the washer near the point of installation with a lift truck  
or fork lift. Remove packing material.  
Remove Shipping Brackets  
2. Remove rear panel and front service panel, if not already  
removed. Remove the bolts attaching the washer to the pallet.  
1. Remove rear panel and front service panel, if not already  
IMPORTANT: This washer is very heavy. Consider equipment  
and manpower required to move this washer prior to  
installation and be sure that all necessary preparations are  
made. See page 16, Technical Specifications”.  
removed.  
2. Remove shipping brackets. Retain brackets and bolts if  
needed to secure the washer for transport in the future.  
3. Replace both panels.  
Fixed installation on concrete floor or elevated concrete pad  
(all models):  
1. Elevate washer and remove the rubber feet from the bottom  
of the washer. Move the washer into its final position. Thread  
bolts into anchors to hold in place. Do not tighten bolts at this  
time.  
2. Level the washer first side to side, then front to back; use  
metal shims to level. Be sure that the washer does not tip in  
any direction before tightening. Tighten the 4 anchor bolts.  
1. Concrete floor 6. M8 nut  
2. Anchor bolt  
3. Flat Washer  
4. Washer frame  
5. M8 bolt  
7. M8 jam nut  
8. Elevated  
metal base  
7
6
4
3
5
2
4
2
Shipping Brackets (Models MFS18, MFS25, and MFS35)  
3
1
8
3
1
Elevated Metal Base  
Concrete Floor or Pad  
Fixed installation on elevated metal base  
(Models MFS18 and MFS25 only):  
1. Be sure that base is secured to the floor.  
2. Slide or lift the washer into its final position. Thread bolts  
from base to flat washer to hold in place. Do not tighten bolts  
at this time.  
Front bracket  
Rear brackets  
(2)  
Shipping Brackets (Model MFS55)  
8
 
Electrical Connection  
Water Supply Connection  
Connect the water supply to the washer using the flexible inlet  
hoses provided. Do not use a rigid connection for the water  
supply.  
NOTE: The water connection to the washer  
requires a 3⁄4" British Standard Pipe Thread  
fitting. The ground end is a U.S. thread.Threading  
an NPT fitting or the NPT end of the inlet hose  
will damage the threads of the fill valve.  
NPT fitting  
1. Flush water lines to remove debris. Install the  
rubber washers in both fitting ends of each inlet  
hose. Install the non-grooved fitting nut of the inlet  
hoses to the hot and cold inlet valves. Tighten  
fittings.  
British standard  
pipe thread  
fitting  
2. Attach grooved end of the inlet  
hoses to the washer. Tighten fittings.  
3. Turn on water and check for leaks  
in the system.  
1. Turn off power at fuse box or breaker box.  
Drain Connection  
2. Open top of washer with key. Prop the top open with  
the support.  
1. Cut the pre-formed drain hose so it fits properly on the drain  
or in the drain channel.  
3. Remove approximately 6" (150 mm) of shielding from cable  
end to expose insulated wires. Be sure that there is sufficient  
wire to create a drip loop or wire sag, as shown.  
2. Attach drain hose to washer with clamp provided. If fitted  
directly to a drain pipe, use a clamp on the drain pipe as well.  
Laundry Product Supply Pump Connection  
Up to 8 laundry product supply pumps may be connected to the  
washer. Tubing and relay connections are provided in the back  
of the washer.  
NOTE: Route hoses and wiring so they will not be pinched,  
damaged, or rubbed during use.  
A drip loop or wire sag keeps  
condensation from running  
into washer  
Electrical Relay Connection  
The electrical connections are relay connections only and do  
not provide adequate power for the pumps. The laundry product  
supply pump(s) must be powered by a separate electrical source.  
4. Strip wire insulation an adequate  
length to make connections. Install  
eyelets on ground wires with a  
crimping tool.  
PN Models  
1. Turn off power at circuit breaker or fuse box.  
5. Remove locking nut from strain relief provided with washer.  
Thread wire through strain relief and thread wire through  
hole in back of the washer until strain relief penetrates hole.  
Route strain relief nut around wires and tighten nut onto  
strain relief body.  
2. Remove panel screw and remove cover. Connect relay leads  
to numbers 1 through 8. Connect common/ground to lead 10.  
3. Replace cover.  
6. Connect two or three current conducting wires into the  
connector and tighten the screw connectors; single phase  
and three-phase connections are shown in the illustrations.  
Attach ground to the frame ground bolt as shown in the  
illustrations and tighten the locking nut.  
Ground  
Ground  
L1 L2 L3  
L1 L2  
PD Models  
1. Turn off power at circuit breaker or fuse box.  
2. Open top cover. Route control wires through washer and  
to relay connector on control panel. Connect leads.  
NOTE: Support control wires with wire ties to keep them  
away from moving parts.  
3. Replace cover.  
3-phase connection  
Single-phase connection  
9
 
Tubing Connectors  
Complete Installation  
All models  
There are 6 tubing connectors in back of the washer. One  
connector is larger in diameter than the others. The larger  
diameter connector should be used for the pump requiring  
chemical mixing with water prior to entering the washer. If  
additional chemicals are needed, contact the manufacturer.  
Tubing connectors are sealed at the factory and must be drilled  
out before use.  
NOTES:  
Only drill out connectors that will be used. Any unused  
open connectors must be sealed to avoid reflux during  
the fill cycle.  
Holes must be drilled. Attempting to open holes with a punch  
may damage the washer.  
1. Drill out connectors that will be used. Use a drill bit slightly  
smaller than the interior diameter of the hole. Small tubes are  
11/32" and larger tube is 13/32". Remove all debris from the  
hole. See illustration.  
1. Turn off power at fuse box or breaker box.  
2. Be sure that the shipping brackets are removed.  
3. Open door and be sure that the washer drum is empty.  
4. Verify that washer is level and does not rock from  
side-to-side.  
5. Check electrical connection and ground.  
6. Turn on water.  
7. Adjust vibration switch. See “Vibration Switch Adjustment”  
in Maintenance.  
8. Check drain connection and clearance.  
9. Turn power on at circuit breaker.  
2. Attach flexible hoses rated for commercial laundry chemicals  
10. Turn the washer on. Begin a wash cycle. Watch the drum  
during the extraction cycle. The drum should rotate  
clockwise as observed from the front of the washer.  
to the connectors. (Secure hoses with hose clamps.)  
PD models only  
These additional steps are necessary to connect tubing  
connectors:  
11. Make sure all panels are installed.  
IMPORTANT: If the drum rotates counter-clockwise in extract  
mode, turn off the power supply at the circuit breaker and reverse  
the polarity of any 2 of the supply wires from the frequency  
inverter to the motor, or on the motor itself. This should only be  
performed by qualified personnel.  
3. Open top cover. Locate  
connectors that were drilled.  
Attach tightly fitting flexible  
hoses rated for commercial  
laundry chemicals onto those  
connectors on the inside of the  
11. Perform vibration switch function test (see page 11 “Vibration  
Switch Adjustment and Function Test”).  
washer, long enough to reach  
12. Begin wash cycle again. Activate the emergency stop switch.  
Dispenser connectors –  
the dispenser box connectors.  
All electrical power to the washer should be deactivated.  
Rear view  
Secure each hose with  
a hose clamp.  
Break-In Period  
The following checks and adjustments should be performed  
during the break-in period as follows:  
4. Be sure that dispenser connectors fit the hoses. Drill out  
connectors on the dispenser box with a drill bit slightly  
smaller than the interior diameter of the hole. Small tubes  
are 11/32" and larger tube is 13/32". Remove all debris  
from the hole.  
24 operation hours  
Check belt tightness. See page 12, “Belt Inspection and  
Adjustment”.  
5. Attach flexible hoses rated for commercial laundry chemicals  
to the connectors. Secure the hoses with a hose clamp.  
80 operation hours  
Check belt tightness. See page 12, “Belt Inspection and  
Adjustment”.  
Check mounting bolt tightness. Retighten if necessary  
(secured installation only).  
Controls Troubleshooting  
For programming and controls troubleshooting, refer to the  
Programming Guide.  
10  
 
WASHER MAINTENANCE  
Maintenance Every 1000 Hours or 6 Months  
Maintenance Schedule  
After Each Load  
Turn off hot and cold water to the washer at the the valves.  
Clean water valve screens.  
Remove debris from the wash drum including paper clips,  
coins, and other hard items.  
When not in use, leave the washer door open to allow the  
washer to air out and prolong gasket life.  
Be sure ventilator fans are functioning (some models).  
Inspect belt and check belt tension. See page 12, “Belt  
Inspection, Adjustment, and Replacement”.  
Check mounting bolt tightness. Retighten if necessary  
(fixed installation only).  
Daily Maintenance  
Maintenance Every 2000 Hours or 12 Months  
Remove water, detergent, and other stains off of the washer  
with a soft cloth dampened with a mild detergent solution.  
Dry with a soft cloth. Do not use abrasives.  
Remove detergent residue and other contamination off the  
door seal with a soft cloth dampened with a mild detergent  
solution.  
Adjust and perform functional test on vibration switch  
(see Vibration Switch Adjustment and Function Testing).  
Vibration Switch Adjustment and Function Test  
The Vibration Switch is a critical component of the washer that  
avoids washer damage during extraction of an unbalanced  
load. Vibration Switch adjustment must be performed during  
installation and checked annually. The Vibration Switch is located  
toward the front of the washer on top of the drum and can be  
accessed by opening the top cover.  
Wipe clean the bottom of the door glass of any debris that  
may settle there.  
Remove residue from the soap hoppers with a plastic  
scraper. Wipe the hoppers with a soft cloth dampened with  
water.  
Check water and steam inlets for leaks. Correct as  
necessary.  
Vibration Switch Adjustment  
Maintenance Every 500 Hours or 3 Months  
1. If washer was just installed, run washer through one  
complete extraction cycle without a load so the drum is  
at its balance point.  
Observe the washer from the back for one wash cycle.  
Be sure that water does not leak out of the drain during  
the wash part of the cycle and that it drains freely at the  
beginning of extraction. Clean the drain valve if either of  
these symptoms are observed.  
2. Turn off power to washer at the circuit breaker or fuse box.  
3. Unlock top cover of washer, remove dispenser screws, and  
open top (see Top View on page 15 for location of dispenser).  
Prop up the front of the cover on all but the MFS18 where  
the top panel also has 2 bolts  
1. Turn off power to washer at the circuit breaker or fuse box.  
2. Unlock top cover of washer, remove dispenser screws, and  
open top (see Top View on page 15 for location of dispenser).  
Remove bolts/screws securing rear panel of washer.  
3. Inspect all hoses and connections inside the washer for  
leaks and correct as necessary. Remove dust and debris  
from inside the washer with a shop vacuum and soft  
bristled attachment. Pay particular attention to the motor  
cooling fins, inverter cooling fins, cooling fans, and vents.  
at the rear of the top panel  
and the top needs to be  
Static arm  
removed by lifting up on the  
rear and sliding the top forward.  
1 3/16"  
(30 mm)  
4. Locate vibration switch  
assembly. Check floating  
arm adjustment. Loosen  
the static arm bolts to  
adjust distance.  
Sensor  
spring  
4. Wipe up any stains with a soft cloth dampened with water  
or a mild detergent solution. Be sure that control components  
are not exposed to dust and moisture during cleaning.  
Floating arm  
Switch  
5. Check that all bolts are properly torqued.  
6. Turn on power at circuit breaker or fuse box.  
Floating arm distance adjustment  
11  
 
5. Make sure that the sensor  
spring is roughly centered  
in the floating arm slot  
horizontally and about 1/3  
of the way from the bottom  
vertically.  
4. Checking the belt tension requires a straight edge and a belt  
tension gauge. Place the straight edge from the drum pulley  
to the motor pulley. Belt tension is correct when a 13 lb.  
(60 N) force applied to the midpoint of the belt between the  
two pulleys deflects the belt 9/16 to 3/4" (15–20 mm). To  
adjust the belt, first loosen the locking nut and loosen or  
tighten the belt as necessary. Re-tighten the locking nut when  
adjusted and re-check.  
Sensor  
spring  
Floating arm  
Adjusting  
bolt  
5. Replace rear panel of washer. Turn on power at circuit breaker  
or fuse box.  
Centering Sensor Spring –  
Front View  
Belt Replacement  
1. Remove bolts securing the rear panel of washer. Remove rear  
6. Adjust switch gap with a  
feeler gauge (see illustration).  
Loosen adjustment screws  
to adjust. Retighten screws  
when adjusted properly.  
Switch  
panel.  
2. Loosen locking nut and loosen belts. On Models MFS18 and  
MFS25, it is necessary to press on the motor to remove the  
belts. Do not use a prybar or screwdriver to remove the belts  
except to hold up the motor.  
3. Replace with new belts of the same type. When a belt needs  
to be replaced, always replace the complete set of belts when  
more than 1 are used.  
Adjustment  
screws  
7. Turn on power at circuit  
breaker or fuse box.  
4. Adjust belts. See “Belt Inspection and Adjustment” on this  
0.008" (0.2 mm)  
Switch Gap Adjustment  
page.  
5. Reinstall rear panel of washer. Turn power on at circuit breaker  
or fuse box.  
Vibration Switch Function Test  
Door Seal Adjustment and Replacement  
Water leaks around the door seal may occur as the gaskets  
age. In most cases, this can be resolved through cleaning the  
door glass and seal or a door adjustment. In severe cases, seal  
replacement is necessary. These procedures are discussed here.  
1. Begin extraction cycle with no load in the washer.  
2. Unlock top cover of washer, remove dispenser screws, and  
open top (see Top View on page 15 for location of dispenser).  
Prop up the front of the cover on all but the MFS18 where the  
top panel also has 2 bolts at the rear of the top panel and the  
top needs to be removed by lifting up on the rear and sliding  
the top forward.. Locate vibration sensor assembly.  
3. Push down on the spring sensor with a screwdriver or other  
long-handled tool. The extraction cycle should stop. If  
extraction does not stop, the sensor requires adjustment  
or is defective.  
Door Seal Adjustment (Models MFS18 and MFS25)  
1. Remove the front cover around the latch. Set cover aside.  
2. Increase (decrease) door seal pressure on the hinge and latch  
sides by removing (inserting) spacer shims between the hinge  
or latch and door frame. Tighten bolts and locking nuts.  
3. Make sure that the door pin is in the center of the door lock  
opening. Loosen the hinge screws slightly to reposition  
the door, if necessary. Open the door and re-tighten the  
screws/bolts when the pin is centered. Add a screw lock  
compound to maintain proper adjustment.  
Belt Inspection, Adjustment and Replacement  
Belt Inspection and Adjustment  
1. Turn off power to washer at the circuit breaker or fuse box.  
2. Remove bolts securing the rear panel of washer. Remove rear  
panel. Inspect belt for signs of wear and damage. Replace the  
belt if worn or damaged. See “Belt Replacement”.  
3. Be sure that the belt pulleys are aligned by laying a straight  
edge along the drum pulley. The motor pulley should be in  
line with the straight edge. If the pulleys are not aligned,  
loosen the motor mounting bolts and adjust. Re-tighten motor  
mounting bolts.  
12  
 
4. Check the gasket pressure. Open door and close door  
latch on the door. Close the door until the closed door latch  
contacts the roller on the door lock. Slowly release pressure  
on the door and allow the door to spring back. Measure the  
distance between the roller and latch without pressure on the  
latch. Gasket pressure is correct when the distance is 0.2–0.4"  
(5–10 mm).  
Longitudinal beam  
Lock cover bolt  
Door lock cover  
Cross beam  
Door frame  
Door frame  
Door glass  
Door hinge  
bolt  
Door  
lock  
bolt  
bolt  
Square  
washers  
Door frame  
bolt  
Door Seal (Models MFS35 and MFS55)  
Door frame  
Door Seal Replacement  
1. Open the door. Remove the door glass with rubber from  
the door frame by pushing it toward the drum. Do not  
damage the glass.  
Door glass  
Door seal  
2. Separate the gasket from the glass.  
3. Place a new rubber gasket with the wider groove on the glass  
with the edge up.  
Door hinge  
bolts  
4. Moisten the seal groove gasket with soapy water. Place  
a smooth cord in the groove so it goes around the entire  
circumference. Fit the assembly to the door frame. Hold  
one end of the cord firmly on the door. Pull the other cord  
end toward the center of the glass and work the gasket onto  
the door.  
Door Seal (Models MFS18 and MFS25)  
Door Seal Adjustment (Models MFS35 and MFS55)  
1. To adjust pressure on the hinge side, open the door and  
loosen the door frame bolts clamping the door frame to  
the hinge. Take out the square washers. Tighten the bolts.  
Loosen the door hinge bolts. Insert one, two or three square  
washers between the longitudinal beam and the cross beam  
as needed. Tighten door hinge bolts when adjusted.  
Fuse Replacement  
All washers have 2-1A in-line fuses at the back of the washer.  
Model MFS55 has an additional 0.5 A in-line fuse.  
2. To adjust pressure on the latch side, remove the lock cover  
bolts and lock cover. Remove the door lock bolts. Remove  
distance lock washers as needed. Replace door lock and  
latch.  
Opening Door Without Power  
In case of a power failure, the door may not open.  
To open the door without power:  
3. Be sure that the door pin is in the center of the door lock  
opening. Loosen the hinge screws slightly to reposition  
the door, if necessary. Open the door and re-tighten the bolts  
when the pin is centered.  
4. Check gasket pressure. Open the door and leave door latch  
handle in unlatched position while the door is open. Slowly  
close the door until the door latch contacts the roller on the  
door lock. Release pressure on the door slowly; the door  
should spring back slightly. Measure the distance between  
the roller and latch without pressure on the latch. Gasket  
pressure is correct when the distance is 0–0.2" (0–5 mm).  
1. Turn off power supply at the circuit breaker or fuse box.  
2. Remove the front service panel.  
3. Find the emergency cord on the left side of the washer.  
Pull the cord firmly until you hear a faint click. Open door.  
4. Reinstall front service panel.  
5. Turn on power at circuit breaker or fuse box.  
13  
 
DIMENSIONS AND TECHNICAL SPECIFICATIONS  
Dimensions  
R
R
C
C
G
G
D
D
F
P
A
P
A
Front View (Models MFS18 and MFS25)  
Front View (Models MFS35 and MFS55)  
V
H
S
J
T
L
B
E
K
I
M
U
W
Back View  
Top View  
N
Q
Q
MFS18  
MFS25  
MFS35  
MFS55  
A
B
C
D
E
F
25.99" (660 mm)  
28.15" (715 mm)  
42.50" (1080 mm)  
22.10" (560 mm)  
17.91" (455 mm)  
0.80" (20 mm)  
15.50" (420 mm)  
10.40" (263 mm)  
35.80" (910 mm)  
4.10" (103 mm)  
38.60" (980 mm)  
1.70" (44 mm)  
32.90" (835 mm)  
3.10" (78 mm)  
14.80" (375 mm)  
0.60" (15 mm)  
17.50" (445 mm)  
27.60" (700 mm)  
23.60" (600 mm)  
2.70" (68 mm)  
33.50" (850 mm)  
25.99" (660 mm)  
32.48" (825 mm)  
44.90" (1140 mm)  
22.10" (560 mm)  
22.24" (565 mm)  
0.80" (20 mm)  
32.67" (830 mm)  
38.39" (975 mm)  
51.00" (1295 mm)  
28.20" (715 mm)  
32.09" (815 mm)  
35.46" (901 mm)  
36.40" (925 mm)  
56.50" (1435 mm)  
31.50" (799 mm)  
33.30" (846 mm)  
G
H
I
18.90" (480 mm)  
10.40" (263 mm)  
38.20" (970 mm)  
4.10" (103 mm)  
40.90" (1040 mm)  
1.70" (44 mm)  
16.90" (430 mm)  
11.80" (300 mm)  
44.70" (1135 mm)  
4.70" (120 mm)  
47.00" (1195 mm)  
1.70" (44 mm)  
23.00" (585 mm)  
10.40" (263 mm)  
48.20" (1225 mm)  
4.10" (103 mm)  
51.80" (1315 mm)  
17.70" (450 mm)  
50.60" (1285 mm)  
5.50" (140 mm)  
28.30" (720 mm)  
0.80" (20 mm)  
J
K
L
M
N
O
P
Q
R
S
T
35.20" (895 mm)  
3.10" (78 mm)  
40.00" (1015 mm)  
2.20" (55 mm)  
14.80" (375 mm)  
0.60" (15 mm)  
16.30" (415 mm)  
0.80" (20 mm)  
17.50" (445 mm)  
27.60" (700 mm)  
23.60" (600 mm)  
2.70" (68 mm)  
20.90" (530 mm)  
27.60" (700 mm)  
23.60" (600 mm)  
7.87" (200 mm)  
41.70" (1060 mm)  
18.50" (470 mm)  
41.40" (1052 mm)  
20.90" (530 mm)  
27.60" (700 mm)  
23.60" (600 mm)  
6.61" (168 mm)  
42.90" (1092 mm)  
17.50" (445 mm)  
44.90" (1140 mm)  
U
V
33.50" (850 mm)  
13.30" (339 mm)  
34.40" (874 mm)  
W
14  
 
Component Locations  
1
1
Front View (Models MFS35 and MFS55)  
Front View (Models MFS18 and MFS25)  
2
4
3
5
6
7
9
8
13  
14  
15  
15  
12  
Top View  
Back View  
11  
10  
1. Control panel  
2. Connection liquid soap  
3. Data plate  
9. Electrical supply connection  
10. Drain  
11. Adjustable feet  
4. Air relieve  
5. Water supply  
12. Steam connection  
13. Soap dispenser  
6. Air vent holes,  
14. Liquid soap relay board box  
15. Earth connection  
Frequency inverter  
7. Fuses  
8. Main switch  
15  
 
Technical Specifications  
MFS18  
MFS25  
MFS35  
MFS55  
Dimensions and Weights  
Washer dimensions  
(width x depth x height)  
25.99 x 28.15 x 42.50" 25.99 x 32.48 x 44.90" 32.67 x 38.39 x 51.00" 35.46 x 36.40 x 56.50"  
(660 x 715 x 1080 mm) (660 x 825 x 1140 mm) (830 x 975 x 1295 mm) (901 x 925 x 1435 mm)  
Net weight  
519 lb. (235 kg.)  
607 lb. (275 kg.)  
1026 lb. (465 kg.)  
1433 lb. (650 kg.)  
Package dimensions  
29.50 x 33.50 x 49.30" 29.50 x 37.40 x 51.20" 36.60 x 44.90 x 59.50" 38.40 x 47.30 x 63.80"  
(750 x 850 x 1250 mm) (750 x 950 x 1300 mm) (930 x 1140 x 1510 mm) (975 x 1200 x 1620 mm)  
Gross weight  
552 lb. (250 kg.)  
27.9 cu.ft. (0.8 m3)  
662 lb. (300 kg.)  
32.5 cu.ft. (0.9 m3)  
1092 lb. (495 kg.)  
56.5 cu.ft. (1.6 m3)  
1522 lb. (690 kg.)  
67.1 cu.ft. (1.9 m3)  
Transportation volume  
Electrical Requirements  
Supply Voltage (50/60 Hz)  
Fuse/Breaker Type  
208–240V 1-phase*  
208–240V 3-phase  
Slow (curve D)  
Class  
GFCI**  
B
Water Supply Requirements  
Allowable water pressure  
Recommended pressure  
Water inlet  
14.5–116 psi (100–800 KPa)  
43–73 psi (300–500 KPa)  
BSP 3/4"  
Maximum water temperature  
Drain Requirements  
Drain diameter  
194°F (90°C)  
3" (76 mm)  
Flow rate  
56 GPM (3.5 l/s)  
Environmental Requirements  
Operating temperature  
Relative humidity  
41 to 95 °F (5 to 35°C)  
30 to 90 % without condensation  
Up to 3280 ft. (1,000 m)  
Elevation above sea level  
Storage temperature  
Floor Requirements  
Maximum static load  
Maximum dynamic load  
Dynamic frequency  
Noise  
32 to 131°F (0 to 55°C)  
560 lb. (2492 N)  
164 lb. (730 N)  
16 Hz  
675 lb. (3002 N)  
1225 lb. (5450 N)  
275 lb. (1220 N)  
16 Hz  
1770 lb. (7860 N)  
366 lb. (1626 N)  
15 Hz  
248 lb ( 1100 N)  
16 Hz  
Noise output  
<70 dB(A)  
<70 dB(A)  
<70 dB(A)  
<70 dB(A)  
G 1/2"  
Steam Connection  
Low pressure  
14.5–44 PSI  
(100–303 KPa)  
High pressure  
44–116 PSI  
(303–800 KPa)  
* 2 phases of a 3-phase power supply may be used. See “Electrical Requirements”.  
** Consult an electrician to ensure proper GFCI connection.  
Torque Specifications  
Recommended Torque Values for Steel Bolts  
Bolt Size  
M6  
Torque  
8 ft. lbs. (10 Nm)  
20 ft. lbs. (25 Nm)  
35 ft. lbs. (45 Nm)  
60 ft. lbs. (80 Nm)  
150 ft. lbs. (200 Nm)  
M8  
M10  
M12  
M16  
W10214572C  
© 2012 Maytag. All rights reserved.  
08/2012  
Printed in the Czech Republic  
 

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