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W10602871
SeRviCe MaNual
Maytag Commercial
MXR Series
PD & PN Washers
WaSHeR MODelS:
MXR65, MXR55, MXR40, MXR30, MXR25 & MXR20
PD & PN
TeCHNiCal eDuCaTiON

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Table of Contents

   Related Manuals for Maytag MXR65

   Summary of Contents for Maytag MXR65

  • Page 1 W10602871 SeRviCe MaNual Maytag Commercial MXR Series PD & PN Washers WaSHeR MODelS: MXR65, MXR55, MXR40, MXR30, MXR25 & MXR20 PD & PN TeCHNiCal eDuCaTiON...
  • Page 2 FORWaRD This Maytag Service Manual, ”Maytag Commercial MXR Series PD & PN Washers” (Part No. W10602871), provides the Commercial Laundry Service Professional with information on the operation and service of the MXR series washers. For specific information on the model being serviced, refer to the Wiring Diagram provided with the washer.
  • Page 3: Table Of Contents

    TaBle OF CONTeNTS Page View entire service video ....................vi Document links ......................... vi GeNeRal ..........................1-1 Commercial washer safety ....................1-1 Model and serial number designations ................1-2 Data plate and wiring diagram location ................1-3 Warranty ........................... 1-4 General user information ....................
  • Page 4 Water inlet valves 3/4” - 55 & 65 lb models ..............3-26 Water inlet manifolds - MXR55 - 65 only ................3-28 Mains disconnect ......................3-29 Motor contactor ......................... 3-30 Isolating transformer ......................3-30 EMI filter ..........................3-31 Fuses ..........................3-31 USB port ...........................
  • Page 5 COMPONeNT TeSTiNG ......................4-1 Water inlet valve testing & repairing ................. 4-1 Inlet valve-stem assembly parts ..................4-2 Door lock component testing from door lock & harness plug ........... 4-3 Contactor testing ....................... 4-4 Inverter testing ........................4-6 Inverter drive chart ......................4-7 Motor winding test ......................
  • Page 6: View Entire Service Video

    Navigating away from this page will require iNTeRaCTive SeRviCe MaNual iNSTRuCTiONS watching the Equipment & Safety section again. Click the mouse on any topic in the table of contents to go directly to that section. Click the mouse on any link that says (See page ?-?) to go directly to the page referenced. Click the mouse on any button in the links section below to open the attached document.
  • Page 7: General

    GeNeRal COMMeRCial WaSHeR SaFeTy iMPORTaNT electrostatic Discharge (eSD) Sensitive electronics ESD problems are present everywhere. ESD may damage or weaken the electronic control assembly. The new control assembly may appear to work well after repair is finished, but failure may occur at a later date due to ESD stress.
  • Page 8: Model And Serial Number Designations

    MODel aND SeRial NuMBeR DeSiGNaTiONS MODel anD SeRial nuMBeR DeSiGnaTiOnS MODEL AND SERIAL NUMBER DESIGNATIONS MODEL nuMBEr BrAnD Maytag riVE & MOunTinG TYPE FR Front Loading / Rigid Mounted Washer FS Front Loading / Free Standing Washer FX Front Loading / Industrial Free Standing Washer...
  • Page 9: Data Plate And Wiring Diagram Location

    DaTa PlaTe aND WiRiNG DiaGRaM lOCaTiON Data Plate Located On The Upper Back Panel Wiring Diagram Located Inside The Washer Cabinet...
  • Page 10 FOURTH AND FIFTH YEAR LIMITED WARRANTY ON CERTAIN PARTS In the fourth and fifth years form the date of purchase, Maytag will pay for the following washer parts: the outer shell, drum and shaft assembly, inner welded frame, and bearings and seals.
  • Page 11: Warranty

    DISCLAIMER OF REPRESENTATIONS OUTSIDE OF WARRANTY Maytag makes no representations about the quality, durability, or need for service or repair of this commercial appliance other than the representations contained in this warranty. If you want a longer or more comprehensive warranty than the limited warranty that comes with this commercial appliance, you should ask Maytag or your retailer about buying an extended warranty.
  • Page 12: General User Information

    GeNeRal uSeR WaSHeR MaiNTeNaNCe iNFORMaTiON Maintenance Schedule after each load n Remove debris from the washer basket including paper clips, coins, and other hard items. Electrical Shock Hazard Disconnect power before servicing. n When not in use, leave the washer door Replace all parts and panels before open to allow the washer to air out and operating.
  • Page 13 Maintenance every 500 Working 8. Turn on power at circuit breaker or fuse box. Hours or 3 Months Maintenance every 1000 Working Hours or 6 Months n Turn off hot and cold water to the washer at the valves. n Clean water filters. n Clean and remove dirt and dust from: Electrical Shock Hazard –...
  • Page 14: Belt Inspection And Adjustment

    BelT iNSPeCTiON aND aDJuSTMeNT 5. To adjust the belt, loosen the locking nut and loosen or tighten the belt as necessary. (See page 1-9 for retightening the locking nut when adjusted and recheck.) 6. Replace rear panel of washer. Turn on power at circuit breaker or fuse box.
  • Page 15: Bolt Torque Values

    BOlT TORque valueS iMPORTaNT: Replace a damaged bolt with a bolt of the same strength value marked on its head. Standard torques are used, except in the locations specified below: Bolts For: Dimension Torque (ft. lb.) Securing Door Lock Central Door Handle Door Handle Turning Mechanism 3.5 - 3.8 2.6 - 2.8...
  • Page 16 DiMeNSiONS DIMENSIONS (Rigid-Mount Models) Front View Side View 1. Electrical connection 11. Fuses 2. Hot water 12. USB port 3. Cold water 13. Electrical connection 4. Main switch to liquid soap pumps 5. Connection liquid soap 14. Trace-Tech connection 6. Drain (valve) (RS485) 7.
  • Page 17: Dimensions

    DiMeNSiONS Dimensions (inches/mm) Model (lb/kg) 20/9 25.98 26.61 43.89 30.91 13.74 6.53 3.46 36.22 4.44 11.53 16.34 40.15 40.35 – 1115 1020 1025 29.53 26.61 48.22 30.91 13.46 8.85 3.85 40.55 4.44 13.31 19.88 44.48 44.68 25/11 – 1225 1030 1130 1135 30/14...
  • Page 18: Technical Specifications

    TeCHNiCal SPeCiFiCaTiONS Rigid-Mount Model (lb/kg) 20/9 25/11 30/14 40/18 55/24 65/28 Washer Dimensions (inches/mm) Width 25.98/660 29.53/750 29.53/750 35.03/890 35.03/890 35.03/890 Depth 30.91/785 30.91/785 35.43/900 36.02/915 41.73/1060 44.68/1135 Height 43.89/1115 48.22/1225 48.22/1225 55.51/1410 55.51/1410 55.51/1410 Packaging Dimensions (inches/mm) Width 27.25/690 30.75/780 30.75/780 36.25/920...
  • Page 19 TeCHNiCal SPeCiFiCaTiONS Soft-Mount and Rigid-Mount Model (lb/kg) 20/9 25/11 30/14 40/18 55/24 65/28 Water Connection Water Inlet Connection BSP 3/4" Water Pressure Range 14.5–116 PSI/0.1–0.8 MPa/1–8 bar Recommended Water Pressure 43–73 PSI/0.3–0.5 MPa/3–5 bar Maximum Water Temperature 194°F/90°C Drain Connection Drain Type Gravity Feed Drain Valve Diameter...
  • Page 20 ---- NOTeS ---- 1-14...
  • Page 21: Theory Of Operation

    THeORy OF OPeRaTiON WaTeR iNleT valveS POWeR On MXR55 and 65 washers the hot and cold MOTOR POWER CIRCUIT: water inlet valves are connected to brass When the mains disconnect is turned on, fittings, that enter the washer from the back power flows through the black and blue wires and each has a removeable debris filter.
  • Page 22: Washer Mounting And Construction

    WaSHeR MOuNTiNG aND CONSTRuCTiON This washer is a rigid mount washer which must be bolted to the floor. There are two holes in each of the four corners of the washer base for mounting bolts. These bolts must be kept tight to keep the washer from vibrating. These washers are assembled with Toc Welds wherever two pieces of metal are connected.
  • Page 23: Usb Update Procedure

    uSB uPDaTe PROCeDuRe CHeMiCal iNJeCTiON A USB port is in the top left corner of the back The chemical injection inlets are located in panel, below the fuses. A USB extension wire the top right back corner of the back panel. runs from the port at the back of the washer These inlets are closed off from the factory.
  • Page 24 ---- NOTeS ----...
  • Page 25: Component Access

    COMPONeNT aCCeSS OPeN TOP PaNel 4. Use the prop rod at the top of the washer, behind the chemical dispenser, to hold the top panel open. 5. Insert prop rod into small round hole along the front right bottom edge of the top panel. Electrical Shock Hazard Disconnect power before servicing.
  • Page 26: Open Control Panel

    OPeN CONTROl PaNel 4. There are rollers, that move through channels in the control panel brackets on both ends, which allow the control panel to be opened and leaned forward, or lifted and removed from the washer. Position the control panel with the rollers in the middle of the channels and lift to remove the rollers Electrical Shock Hazard from the channels.
  • Page 27: Components In The Control Panel - Pd Models

    COMPONeNTS iN THe CONTROl PaNel - PD MODelS Automatic Door Release Module Coin Drop Display Control Control Mechanism Board Board Components accessible in the control panel include the control board, the display board with display, the automatic door release module on PD models, which stores some electricity in a capacitor providing power to unlock the door in the advent of a power outage, and a single Munzprufer coin mechanism with removable coin sensor on PD washers, or an emergency stop button on PN washers.
  • Page 28: Main Control Board

    MaiN CONTROl BOaRD 5. Remove two T-20 screws, with star washers, from the top edge of control panel that secure control board mounting bracket. Two T-20 Screws Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating.
  • Page 29: Mc-7 Control Board Connections

    MC-7 CONTROl BOaRD CONNeCTiONS 24VAC (100mA) Chemical Signals Temperature Sensor Display Board J_T1 Ribbon Connector J_02 Recycling Rotation Sensor Coin Drop & Vault Switch R2 Drain Valve 2 R10 Cold Water Hopper 4 DL16 Pin 1 Noted With R5 Contactor R11 Hot Water Hopper 1 White Line Component...
  • Page 30: Display Board

    DiSPlay BOaRD 4. Remove four #1 Phillips screws that secure the display board to the control panel. NOTe: This is an MC-7 control. Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Four #1 Phillips Failure to do so can result in death or Screws electrical shock.
  • Page 31: Automatic Door Release Module - Pd Models

    auTOMaTiC DOOR ReleaSe MODule - PD MODelS 4. To remove the board from the control panel, squeeze the five standoffs, with needle nose pliers, to release corners of the board. 5. Pull the board away from the washer and remove it. Electrical Shock Hazard 6.
  • Page 32: Emergency Stop Button - Pn Models

    eMeRGeNCy STOP BuTTON - PN MODelS 4. To remove a switch from the switch block, insert a flat blade screwdriver in the tab at the end of the switch. 5. Pull the tab to release that end of switch. Electrical Shock Hazard Disconnect power before servicing.
  • Page 33 9. To remove the knob from the control panel, 12. When reinstalling the knob, the arrow on unscrew the retaining ring from the back of the base should face top of control panel. the button. Retaining Ring 13. Reinstall the serrated side of the retaining 10.
  • Page 34: Coin Drop And Coin Sensor - Pd Models

    COiN DROP aND COiN SeNSOR - PD MODelS 4. Use a small flat blade screwdriver to release the coin sensor wires. Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock.
  • Page 35: Coin Vault Switch - Pd Models

    COiN vaulT SWiTCH - PD MODelS 5. Press tabs on top and bottom of the switch. Electrical Shock Hazard Disconnect power before servicing. Tabs Replace all parts and panels before operating. Failure to do so can result in death or electrical shock.
  • Page 36: Coin Vault - Pd Models

    COiN vaulT - PD MODelS 6. Mark the coin drop connector wire colors and order them for proper reinstallation. NOTe: The colors and order of wires are Red, Blue, Green, and Green, from the inside to outside of washer. Green wires are marked 1 and A1 from inside to outside of Electrical Shock Hazard washer.
  • Page 37 9. Remove the T-20 screw below the front left 12. To remove the coin drop connector corner of the coin vault. terminal board, remove two 7mm hex head screws that secure it to the coin vault. NOTe: There is a large flat washer used as a spacer between the coin vault and the left side panel.
  • Page 38: Control Panel Removal

    CONTROl PaNel ReMOval 7. Peel off the plastic splash guard, secured by double stick tape, from the top edge of the control panel. Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock.
  • Page 39: User Interface Overlay

    uSeR iNTeRFaCe OveRlay 4. Remove the clear film from the inside of the display window. 5. Peel the backing paper off the new overlay to expose the adhesive. 6. Align the overlay with the recessed area of Electrical Shock Hazard the control panel.
  • Page 40: Top Panel Removal

    TOP PaNel ReMOval 3. Lift the top panel and slide it back. Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock. 1. Remove two T-20 screws from the bottom half of each hinge.
  • Page 41: Top Panel Prop Rod

    TOP PaNel PROP ROD 5. The top panel prop rod support is attached to the chemical dispenser support with double stick tape. Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Prop Rod Failure to do so can result in death or Support electrical shock.
  • Page 42: Chemical Dispenser

    CHeMiCal DiSPeNSeR 1. To access and service the chemical 4. A dispenser block-off cover can be installed dispenser, lift the cover of the dispenser. to prevent access to the pre-wash or bleach dispensers. Insert the block-off cover into the desired dispenser and push down until 2.
  • Page 43: Chemical Dispenser Lid And Gasket

    CHeMiCal DiSPeNSeR liD aND GaSkeT 4. The cutouts on the back edge of the gasket are for the lid hinges. Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. 5. When reinstalling the gasket, the chemical Failure to do so can result in death or dispenser will at least need to be lifted to electrical shock.
  • Page 44: Chemical Dispenser Removal

    CHeMiCal DiSPeNSeR ReMOval 3. Mark the water inlet valves, if they are not already marked. Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock. 1.
  • Page 45 8. Remove the chemical dispenser outer 11. Lift the dispenser out of the support. gasket by lifting up at the edge and peeling the gasket away from the edge of the dispenser. The cutouts on the back edge of the gasket are for the lid hinges. 12.
  • Page 46: Chemical Dispenser Support

    CHeMiCal DiSPeNSeR SuPPORT 7. Remove two T-20 screws from the right side, that secure the chemical dispenser support to the side panel. Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock.
  • Page 47 10. Remove the 10mm hex head bolts from 13. Remove the T-20 screw securing the front corners of chemical dispenser support. center support brace to the back edge of washer. 10mm Hex Head Bolt T-20 Screw 11. Clip the wire ties that secure the air tube to the front of the support.
  • Page 48: Water Inlet Valve Debris Filters

    TECH TIP: Debris filters come from the factory with the end of the filter pointing Water Inlets toward the back. Maytag recommends that filters be installed the opposite way, so the filter forms a cup shape to catch incoming debris. This can help reduce the frequency of filter cleaning.
  • Page 49: Water Inlet Valve Solenoids - All Models

    WaTeR iNleT valve SOleNOiDS - all MODelS 4. Use a flat blade screwdriver to pry up under the metal frame of the coil. Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or 5.
  • Page 50: Water Inlet Valves 3/4" - 55 & 65 Lb Models

    WaTeR iNleT valveS 3/4” - 55 & 65 lB MODelS 5. Pull the connectors off the coil. 6. To access the connectors, unscrew the strain relief. Strain Relief Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating.
  • Page 51 9. To remove the top valve plate, use a V4 size 13. To remove the valve stem and inspect the hex key to remove four screws from the top coil bleed off area, remove two T-10 screws. of the valve. There is a spring up in the stem that will be pushing the stem up away from the top valve plate.
  • Page 52: Water Inlet Manifolds - Mxr55 - 65 Only

    WaTeR iNleT MaNiFOlDS - MXR55 - 65 ONly 5. The manifold, inside the cabinet, can now be moved away from the back panel. 6. The manifold consists of a valve at the bottom, an elbow, a coupling and a T-fitting. The hot water manifold is removed the same way.
  • Page 53: Mains Disconnect

    MaiNS DiSCONNeCT 4. Remove the knob shroud. 5. Open the top panel. (See page 3-1) 6. The mains disconnect is near the top left back corner inside the cabinet. Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating.
  • Page 54: Motor Contactor

    MOTOR CONTaCTOR iSOlaTiNG TRaNSFORMeR Electrical Shock Hazard Electrical Shock Hazard Disconnect power before servicing. Disconnect power before servicing. Replace all parts and panels before Replace all parts and panels before operating. operating. Failure to do so can result in death or Failure to do so can result in death or electrical shock.
  • Page 55: Emi Filter

    eMi FilTeR FuSeS Electrical Shock Hazard Electrical Shock Hazard Disconnect power before servicing. Disconnect power before servicing. Replace all parts and panels before Replace all parts and panels before operating. operating. Failure to do so can result in death or Failure to do so can result in death or electrical shock.
  • Page 56: Usb Port

    uSB PORT 5. Open the control panel. (See page 3-2) 6. Disconnect the USB extension cable from the left end of the display board. Electrical Shock Hazard Extension Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock.
  • Page 57: Chemical Injection Mixing Chamber

    CHeMiCal iNJeCTiON MiXiNG CHaMBeR 5. Loosen the worm gear clamp securing the steam vent hose to the left side of the mixing chamber. Pull the hose off. Cold Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before Steam operating.
  • Page 58: Door Glass Bowl And Seal

    DOOR GlaSS BOWl aND Seal 1. To remove the door glass bowl and seal, 6. Pull the glass bowl and seal away from the open the washer door. inside edge of the door to remove them. 2. Use a flat blade screwdriver to slide behind the rubber seal and fold it down away from the front of the door.
  • Page 59: Door Handle

    DOOR HaNDle 1. To access and service the door handle, use 4. Remove handle by sliding it off the shaft. a small flat blade screwdriver to pry the front cover away from the handle. NOTe: The handle has set screws that press on springs inside the four channels.
  • Page 60 7. Insert the shaft into the hole in the door with 11. While holding the shaft tight to the inside the hook of the latch facing the center of the of the door, reinstall the knob. door. NOTe: If the center collar of the knob is not held in place, the shaft can push the collar 8.
  • Page 61 18. Reinstall the front cover ring, with the ridge 21. Verify that the hook of the shaft springs facing the inside of the cover. back to the proper position that matches the orientation of the hole in the front plate of the washer.
  • Page 62: Door And Hinges

    DOOR aND HiNGeS 1. The door is attached to the washer with two 5. There may be shims between the hinges hinges. To remove the door, remove two of and the door for proper alignment and door the three T-30 bolts in the top hinge. closing pressure.
  • Page 63: Front Panel

    FRONT PaNel 4. Inside the front panel is a rubber edge cover, around the door opening. Rubber Electrical Shock Hazard Edge Cover Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock.
  • Page 64: Door Lock

    DOOR lOCk 4. Pull the door lock mechanism out from behind the door support front plate. 5. Clip the two wire ties that secure the wire harness to the door lock assembly. 6. When reinstalling the door lock, replace the Electrical Shock Hazard wire ties through the two standoffs on the Disconnect power before servicing.
  • Page 65: Front Plate

    FRONT PlaTe 6. These bolts are slightly shorter than the door to hinge bolts. Use thread lock when reinstalling these bolts. Front Plate Door To Hinge Bolt Hinge Bolt Block Bolt Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating.
  • Page 66: Drain Valve

    DRaiN valve 4. Press the thumb tabs at the top and bottom of the cover and pull the cover away from the drain valve. TeCH TiP: If the securing tabs of the cover happen to break off, make sure to secure the cover in place with a wire tie through Electrical Shock Hazard the holes that secure the tabs.
  • Page 67 9. Loosen the worm gear clamp securing the 11. Remove three 13mm hex head bolts and main drain hose to the pump outlet. Pull the flat washers that secure the drain valve to hose off the outlet. the washer. These bolts screw into rivet nuts that are secured to the mounting tabs TeCH TiP: Worm gear clamps can be in the washer.
  • Page 68: Door Support Front Plate

    DOOR SuPPORT FRONT PlaTe 4. Use a pry bar behind the door support front plate, around the tub opening, to remove it from the tub front cover. Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating.
  • Page 69: Tub Front Cover

    TuB FRONT COveR 5. Measure from the base of the washer to the middle of a bolt on the tub front cover. Mark the distance on the cover. Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating.
  • Page 70: Back Panel

    BaCk PaNel 3. Loosen the two T-30 screws at the bottom of the panel. Electrical Shock Hazard Disconnect power before servicing. Two T-30 Replace all parts and panels before Screws operating. Failure to do so can result in death or electrical shock.
  • Page 71: Lower Back Panel

    lOWeR BaCk PaNel 4. Remove two T-30 screws from the bottom back edge of the panel. These screws may need to be accessed from inside the back of the washer. The bottom edge is inset under the back edge of the washer. T-30 Screw Electrical Shock Hazard Each Side...
  • Page 72: Drive Motor

    DRive MOTOR 4. The belt tension adjustment is a plate with multiple holes and a spring attached to the frame of washer. TeCH TiP: There are four holes in the frame of the washer. When adjusting belt tension, choose the hole in the base to Electrical Shock Hazard keep the spring as vertical as possible, depending on which hole is being used in...
  • Page 73 7. Remove the 19mm nut on the drive motor 11. Remove the 19mm nut on the drive motor mounting bolt securing the belt tension pivot bolt. There are no washers on the plate. It may be necessary to use a wrench motor mounting bolts.
  • Page 74 16. Unscrew the #2 Phillips screw securing 19. Mark the wires from the drive motor to the inverter front cover. Remove cover. The the inverter for proper reinstallation. These screw does not come out of the cover. wires are connected to contacts U, V and W of the inverter.
  • Page 75: Inverter Fan

    iNveRTeR FaN 5. Lift the thumb tab on the fan cover and remove the cover. Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock. Thumb Tab 1.
  • Page 76: Inverter

    iNveRTeR 4. Disconnect the RJ-45 inverter communication wire by pressing the thumb tab and pulling the connector out. Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock.
  • Page 77 8. Use a flat blade or Phillips screwdriver to 13. Support the inverter while removing the loosen the screws on contacts U, V and W. two Phillips screws that secure the top Pull the drive motor wire connectors down corners of the inverter heat sink. These to remove them.
  • Page 78: Temperature Sensor

    TeMPeRaTuRe SeNSOR 3. Use a pair of pliers and a slight twisting motion, to pull the sensor out of the rubber mounting grommet. Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock.
  • Page 79: Rotation Sensor

    ROTaTiON SeNSOR 5. To remove the sensor, remove the rear most nut and star washer. Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock. 1.
  • Page 80: Left Side Panel

    leFT SiDe PaNel 5. Remove two T-20 screws inside the front left edge, near the top. These screws have a star washer on them. Electrical Shock Hazard Two T-20 Disconnect power before servicing. Screws Replace all parts and panels before operating.
  • Page 81 7. Remove two T-20 screws inside the washer 10. Clip the wire ties, in the standoffs, down cabinet, under the chemical dispenser the back edge of the left side panel. support, near the front. These are self tapping screws with molded on washers. NOTe: Replace any wire ties that were cut and removed during service or diagnostics.
  • Page 82: Right Side Panel

    RiGHT SiDe PaNel 5. Remove two T-20 screws inside the washer cabinet, under the chemical dispenser support, near the front. These are self tapping screws with molded on washers. Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating.
  • Page 83: Basket Pulley

    BaSkeT Pulley 4. Insert a puller bolt into the shaft. This bolt is part of the tool kit. It has a conical hole in the head of the bolt for the center push rod of the puller to seat in. Electrical Shock Hazard Disconnect power before servicing.
  • Page 84: Bearing House

    BeaRiNG HOuSe 4. Install two support rods into the holes of the bolts just removed. 5. Mark the bearing house, and support, for proper alignment during reinstallation. Marks Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating.
  • Page 85 9. Jack bolts for the MXR 40, 55 and 65 are 13. The shaft seal is reddish and is located recommended to be M10 120mm bolts, a at the front of the bearing house. This is a minimum of 100mm of threaded length is triple lip seal required.
  • Page 86: Basket

    BaSkeT 8. Remove the back panel. (See page 3-46) 9. Remove the basket pulley. (See page 3-59) 10. Remove the bearing house. (See page 3-60) Electrical Shock Hazard Disconnect power before servicing. 11. Using two people, pull the basket out of the outer tub and set it on its front.
  • Page 87: Baffles In Basket

    BaFFleS iN BaSkeT 1. To access and service the baffles in the 4. To remove a baffle, remove the double basket, remove the basket. (See page 3-62) 19mm nuts at the back of the basket. Double 19mm Nuts 2. There are three baffles, or lifters in basket. Each baffle is secured on a rod that is 5.
  • Page 88: Outer Tub & Bearing Support

    OuTeR TuB & BeaRiNG SuPPORT 5. Slide control panel and chemical dispenser assembly toward the back of the outer tub. Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock.
  • Page 89 9. Disconnect the air tube from the drain hose 13. Pull the basket out of the front of the fitting. Move the clamp up the tube and pull washer onto the pallets. The shaft is the tube off. attached to the back of the basket. Air Tube Clamp 10.
  • Page 90 n In the center of the back are eight 17mm 16. The outer tub seam is positioned on top, at bolts that secure the bearing support on the the 12 o’clock position. This is required for back of the outer tub. proper orientation of tub connections.
  • Page 91: Basket Reinstall

    BaSkeT ReiNSTall 4. Install a centering rod in the center hole of the shaft, through the opening in the tub. Centering Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock.
  • Page 92: Bearing House Reinstall

    BeaRiNG HOuSe ReiNSTall 3. Make sure the marks made on the bearing house, align with the marks on the support. 4. Move the bearing house as close as possible to the support at the back of tub. Electrical Shock Hazard Disconnect power before servicing.
  • Page 93 6. Make sure to reinstall the wire bracket on 8. Remove the two support rods. the bottom bolt with the washer between the bracket and the bearing house. Wire Bracket 9. Reinstall the final two bolts where the support rods were located. 7.
  • Page 94: Basket Pulley Reinstall

    BaSkeT Pulley ReiNSTall 3. Block the pulley to the basket and tighten center bolt, pressing pulley onto the shaft. Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock.
  • Page 95: Toroidal Autotransformer Mxr20, 25 & 30 - 120vac Models

    TOROiDal auTOTRaNSFORMeR MXR20, 25 & 30 - 120vaC MODelS Advantages of toroidal transformers relative to other core configurations: n Magnetic circuit is nearly ideal n Lower stray magnetic field Electrical Shock Hazard Disconnect power before servicing. n Less volume and weight Replace all parts and panels before operating.
  • Page 96 ---- NOTeS ---- 3-72...
  • Page 97: Component Testing

    COMpOnenT TeSTinG COMPONeNT TeSTiNG Electrical Shock Hazard Electrical Shock Hazard Disconnect power before servicing. Disconnect power before servicing. Replace all parts and panels before operating. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock. Failure to do so can result in death or electrical shock.
  • Page 98: Inlet Valve-stem Assembly Parts

    iNleT valve-STeM aSSeMBly PaRTS inleT valve-STeM aSSeMBly paRTS The stem assembly consists of a diaphragm, a plunger with a rubber tip and a return spring. Rubber Tip Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating.
  • Page 99 Electrical Shock Hazard Disconnect power before servicing. Electrical Shock Hazard Electrical Shock Hazard Replace all parts and panels before operating. Disconnect power before servicing. Disconnect power before servicing. Failure to do so can result in death or electrical shock. Replace all parts and panels before operating. Replace all parts and panels before operating.
  • Page 100: Contactor Testing

    CONTaCTOR TeSTiNG WARNING WARNING DANGER Electrical Shock Hazard Electrical Shock Hazard Only authorized technicians should Disconnect power before servicing. perform diagnostic voltage Replace all parts and panels before measurements. operating. After performing voltage Failure to do so can result in death or electrical shock.
  • Page 101 The second cause of the contactor contacts The fourth reason for a contactor not passing not closing is worn or burnt contacts within the voltage through it would be that the coil is not contactor. getting voltage to it. To check continuity of the connecting wire: 1.
  • Page 102: Inverter Testing

    iNveRTeR TeSTiNG WARNING WARNING DANGER Electrical Shock Hazard Electrical Shock Hazard Only authorized technicians should Disconnect power before servicing. perform diagnostic voltage Replace all parts and panels before measurements. operating. After performing voltage Failure to do so can result in death or electrical shock.
  • Page 103: Inverter Drive Chart

    7. If DC Buss voltage is 10% or more higher or lower than expected, replace inverter. iNveRTeR DRive CHaRT Model inverter inverter D700 kW Brand Rating MXR20 Mitsubishi 0.4kW MXR25 Mitsubishi .75kW MXR30 Mitsubishi .75kW MXR40 Mitsubishi .75kW MXR55 Mitsubishi 1.5kW MXR65 Mitsubishi 1.5kW...
  • Page 104: Motor Winding Test

    Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock. MOTOR WiNDiNG TeST OTHeR COMPONeNT ReSiSTaNCe CHaRT MXR20 - 65 motors have 3 motor winding Component Resistance wires, 3 black, 1 green (ground)
  • Page 105: Door Lock Component Testing From Control Board

    Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock. DOOR lOCk COMPONeNT TeSTiNG FROM CONTROl BOaRD To disconnect wires on the door lock wire To disconnect wires on the door lock wire harness on a PD model, go to the Auto-Unlock harness on a PN model, go to the Main...
  • Page 106: Main Control Board Testing

    Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock. MaiN CONTROl BOaRD TeSTiNG Of All the parts that are returned to Whirlpool Next, look at the power supply connector Corporation for testing, that have been found (J_P) on the Main Control Board for PN to have No Apparent Defect (NAD), it is by far...
  • Page 107: Pd Keypad Testing

    Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock. PD keyPaD TeSTiNG 1. Unplug washer or disconnect power. NOTe: Due to variablility in contacts within the membrane switches, full continuity may not be achieved.
  • Page 108: Pn Keypad Testing

    Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock. PN keyPaD TeSTiNG 1. Unplug washer or disconnect power. NOTe: Due to variablility in contacts within the membrane switches, full continuity may not be achieved.
  • Page 109: Isolating Transformer Testing

    Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock. iSOlaTiNG TRaNSFORMeR TOROiDal TRaNSFORMeR TeSTiNG TeSTiNG - 120vaC MODelS Secondary 1. Unplug washer or disconnect power. The Isolating Transformer is in left back corner, below the contactor, inside the cabinet 2.
  • Page 110: Temperature Sensor Testing

    Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock. TeMPeRaTuRe SeNSOR TeSTiNG quiCk TeST: The temperature sensor cable is connected at the upper right hand side of the control board 1.
  • Page 111: Diagnosis And Troubleshooting

    DiaGNOSiS aND TROuBleSHOOTiNG DOOR Will NOT uNlOCk eRROR MeSSaGe DiSPlayeD Various messages may appear on the display at the start, during, or at the end of a washing cycle. In some cases, an audible signal will alert the operator. When an error occurs, the washer will automatically go to a safe state.
  • Page 112: How To Handle Fault Messages

    HOW TO HaNDle FaulT MeSSaGeS n Check the failure code information in this If at the end of the cycle the safety section to determine the nature of the conditions are not met, the display will show problem. TOO HOT or WATER IN CAGE. n Ask for an experienced technician’s assistance to solve the problem.
  • Page 113 The computer will begin a specific Special cases: routine depending on the failure n For e11: Fill Time failure and e14: Heating time failure after overriding and type: erasing the Failure Message, restart or n WHEN SAFETY IS INVOLVED stop the sequence, when “Continue ?” is displayed.
  • Page 114: Fault Code Overview

    FaulT CODe OveRvieW Fault Code Overview CODE MESSAGE FAILURE FAULT OCCURRENCE ACTION No Drain End Drain failure Draining Full Stop + Tumble Tilt Fault Safety switch activated Whole cycle, revolutions Full Stop + Tumble under distribution revolutions level Imbalance Safety switch activated Spin Skip + Continue during transition from...
  • Page 115 Fault Code Overview (continued) CODE MESSAGE FAILURE FAULT OCCURRENCE ACTION SoapTimeOut Incorrect signal for liquid Whole cycle Full Stop + Tumble detergent dispensing No Reheat Heating failure Wash step (traceability only) Full Stop + Tumble No Refill Refill failure Wash step (traceability only) Full Stop + Request for Continue Power Interruption No successful wash cycle...
  • Page 116: Diagnostic Program

    DIAGNOSTIC PROGRAM The purpose of the Diagnostic Program is to test the washer Service Menu Service Menu functions one by one. • Select dia • Select dia HOW TO GET INTO THE DIAGNOSTIC MENU Diagnostic Prog … DiaGNOSTiC PROGRaM Diagnostic Prog … 1.
  • Page 117: Basic Diagnostic Wash Program

    BaSiC DiaGNOSTiC WaSH PROGRaM BASIC Diagnostic Wash program Sequence Supply Inlet Temp Level Wash action Time R.P.M. Wash 3-4-5 104°F (40 ° A=12 sec R=3 sec 6 min Step 1 Drain – – – – – 30 sec Rinse 1 –...
  • Page 118 ---- NOTeS ----...
  • Page 119: Wiring Diagrams

    WiRiNG DiaGRaMS...
  • Page 121: Alphabetical Component Index

    alPHaBeTiCal COMPONeNT iNDeX Automatic door release module - PD models ..............3-7 Back panel ........................3-46 Baffles in basket ....................... 3-63 Basket ..........................3-62 Basket pulley ........................3-59 Basket pulley reinstall ....................... 3-70 Basket reinstall ......................... 3-67 Bearing house ........................3-60 Bearing house reinstall .....................
  • Page 122 Right side panel ........................ 3-58 Rotation sensor ......................... 3-55 Temperature sensor ......................3-54 Top panel prop rod ......................3-17 Top panel removal ......................3-16 Toroidal autotransformer MXR20, 25 & 30 - 120VAC models .......... 3-71 Tub front cover ........................3-45 USB port ...........................
  • Page 123 ---- NOTeS ----...

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