Whirlpool M-17 Technical Manual Download Page 54

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For Service Technician Use Only

COMPONENT TESTING (Cont.)

3-16

Whirlpool

and KitchenAid

Filtration and Maytag

24" Microfiltration Dishwashers

Diverter Position Optical Sensor

This test will check the wiring to the diverter sensor/position

sensor and the diverter assembly itself. The following items are

part of the diverter sensor/switch circuit:

Harness/Connection

Diverter Motor (see test on previous page)

Diverter Position Optical Sensor

Control Board

Test Procedure

Check the operation of the diverter motor in the Service

Diagnostics Cycle. You should be able to "hear" the water

spraying from different spray arms as the diverter rotates

through the various wash zones.

If the diverter is diverting the flow of water to the wash

zones, the diverter motor is working-continue to step 3.

If not, perform the diverter motor test procedure on the

preceding page.

Strip Circuit - Diverter Switch

Unplug dishwasher or disconnect power.

Remove toe and outer door panels to access control board.

Visually check that the diverter position switch connector and

P11 connector on the control are securely installed.

If visual check passes, go to step 6.

If any of the connectors are not inserted properly,

reconnect and retest diverter position switch.

Check continuity of harness between diverter position switch

and P11 on control.

If continuity test is good, continue to step 7.

If continuity test fails, repair or replace harness as

needed.

To test diverter switch, set up voltmeter for DC voltage and

connect red lead to P11-2 and black lead to P10-2.

Plug in dishwasher or reconnect power.

Run the Service Diagnostics Cycle as stated in Step 1, and

you should observe the diverter position switch closing

momentarily and then reopening as it reaches each potential

position. DC voltage should vary from approximately 0 V

to 8-10 V as the diverter rotates and the sensor detects

positions. Monitor for several intervals of the Service

Diagnostics Cycle to observe behavior.

If the sensor is functioning normally (Voltage is varying as

diverter rotates), proceed to step 10.

If sensor does not detect positions properly, or voltage is

consistently at 0 V or 8-10 V and does not change, then

replace diverter assembly and retest.

10.

If the preceding steps did not correct the diverter/position

switch problem, replace the control board and retest.

11.

Reassemble all parts and panels.

12.

Plug in dishwasher or reconnect power and run Diagnostics

Cycle to verify repair.

DANGER

Electrical Shock Hazard

Only authorized technicians should perform

diagnostic voltage measurements.
After performing voltage measurements,

disconnect power before servicing.
Failure to follow these instructions can result in

death or electrical shock.

P10-2

Sensor

Drive

Electronic Control

Switch closes momentarily and then

reopens as the diverter reaches

each potential diverter position.

Diverter Position

Optical Sensor

Electronic Control

Sensor

Input

Reference for

DC power supply

P11-3

P11-2

P10-2

Ref

Summary of Contents for M-17

Page 1: ...M 17 TECHNICAL MANUAL Whirlpool and KitchenAid Filtration and Maytag 24 Microfiltration Dishwashers W11447459 Multimedia Enhanced ...

Page 2: ...r For specific operating and installation information on the model being serviced refer to the literature provided with the dishwasher GOALS AND OBJECTIVES This Technical Manual provides information that will enable the In Home Service Professional to properly diagnose malfunctions and repair the Whirlpool and KitchenAid Filtration and Maytag 24 Microfiltration Dishwashers The objectives of this T...

Page 3: ... SERVICE ERROR CODES 2 4 TROUBLESHOOTING GUIDE 2 10 SECTION 3 COMPONENT TESTING 3 1 SAFETY 3 2 WIRING DIAGRAM 3 3 CONTROL BOARD INFORMATION 3 5 COMPONENT TESTING 3 5 COMPONENT LOCATION 3 25 COMPONENT LOCATION GWS MODEL 3 26 SECTION 4 COMPONENT ACCESS 4 1 INSULATION BLANKET AND DOOR LATCH STRIKE 4 2 SIPHON BREAK 4 3 ACCESSING DOOR COMPONENTS 4 4 REMOVING THE INNER DOOR AND HINGES 4 6 PRODRY ASSEMBL...

Page 4: ...iv n Whirlpool and KitchenAid Filtration and Maytag 24 Microfiltration Dishwashers Notes ...

Page 5: ...and information for the Whirlpool and KitchenAid Filtration and Maytag 24 Microfiltration Dishwashers Dishwasher Safety General Theory of Operations New Components Features Model Number and Serial label location Tech Sheet Location Model Number and Serial Number Nomenclature Product Specifications Product Features Whirlpool Cycle Guide KitchenAid Cycle Guide Maytag Cycle Guide ...

Page 6: ... keep them out of the reach of children When loading items to be washed 1 Locate sharp items so that they are not likely to damage the door seal and 2 Load sharp knives with the handles up to reduce the risk of cut type injuries Do not wash plastic items unless they are marked dishwasher safe or the equivalent For plastic items not so marked check the manufacturer s recommendations Do not touch th...

Page 7: ...er in the bottom of the tub The rest of the high performance filtration system is below the tub How Microfiltration Works 1 Water and food particles flow through the coarse filter into the filter housing 2 An impeller pulls wash and rinse water into the spinning ultra fine filter 3 The ultra fine filter is cleaned by an area of back pressure created by two sets of wing shaped blades located inside...

Page 8: ...ecommended Time Interval to Clean Your Filter Number of Loads Per Week If You Only Scrape Before Loading If You Scrape and Rinse Before Loading If You Wash Before Loading 8 12 Every two months Every four months Once per year 4 7 Every four months Once per year Once per year 1 3 Twice per year Once per year Once per year Manufacturer s recommendation This practice will conserve the water and energy...

Page 9: ...on with it s own wash system Rear feed tube with four wash zones Spray Arms It has new attachment method and comes with compressed size Four Legs Made of plastic similar to dryer legs Improved anchoring Four anchor locations in top tub collar to top mount the dishwasher under the counter top New small screw head on anchor screws to fit into smaller side anchor holes in side of tub collar Diverter ...

Page 10: ... Cont 1 6 n Whirlpool and KitchenAid Filtration and Maytag 24 Microfiltration Dishwashers Model Number and Serial Number Label Location Tech Sheet Location Model Number and Serial Number Label Location Tech Sheet Loca on ...

Page 11: ... A K N Brand W Whirlpool Platform D Dishwasher Sub Platform T Fully Integrated Top Controls Suite Level 7 High 9 A Premium Feature Set 00 99 The higher the number the more features available Key Feature S Stainless Steel Tall Tub Key Feature or Derivative A Base Model Year Model Introduced K 2020 L 2021 Color W White B Black Z Fingerprint Resistant Stainless Steel V Fingerprint Resistant Black Sta...

Page 12: ...MODEL NUMBER INTERNATIONAL SALES OR MARKETING CHANNEL K D F E 10 4 K BS Brand K KitchenAid Categories D Dishwasher Configuration Fuel F Front Control P Pocket Handle T Top Control Product Detail E Filter System Feature Pack 10 90 The higher the number the more features available Width 4 24 inches Year Model Introduced K 2020 L 2021 Color BL Black BS Black Stainless WH White PS Gray Stainless ...

Page 13: ...her Product Type B Built In C Portable Feature Package 46 89 Console 09 49 Classic 50 99 FID Tub Material P Plastic S 100 Stainless Steel Year Model Introduced K 2020 L 2021 Color B Black W White K Cast Iron Black Z Fingerprint Resistant Stainless Steel Serial Number Nomenclature SERIAL NUMBER F 9 25 10000 MANUFACTURING SITE F FINDLAY OH YEAR OF MANUFACTURE 9 2019 X 2020 Two digits that represent ...

Page 14: ...13 or 14 Description Dishwasher Type Built In Controls Automatic Temperature Controls Yes Control Location Front or Hidden Top Control Type Tap Touch with Display or Electronic Touch with Display End of Cycle Signal Yes Sensor Yes Status Light White Exterior Control Panel Color Gray or Black Door Style Flat Handle Color Gray or Stainless Steel or Black or White Handle Material Plastic or Metal Han...

Page 15: ...ol Models Only KitchenAid Models Only Maytag Models Only Drying System Type Vent Dry with Heating Element or Recessed Heating Element Vent Dry with Heating Element Vent Dry with Heating Element Number of Racks 3 3 2 Number of Wash arms 3 3 3 Rack Material Nylon Nylon Nylon Tub Material Stainless Steel Stainless Steel Stainless Steel Tub Style Built in Tall Tub 24 Built in Tall Tub 24 Built in Tall...

Page 16: ...s Steel Wash Arm Fold Down Tines Whirlpool Models Only 1 Fold Down Glides Wheels or Ball Bearings Style Extended Silverware Basket Type Large In the Rack Basket or 3 Piece Splittable Location Bottom Rack Covers Yes Culinary Basket Yes Third Level Rack Whirlpool Models Only Glides Ball Bearings Removable Yes Type Third Rack with Wash Tube or Culinary Rack Third Level Rack KitchenAid Models Only Gli...

Page 17: ...e for loads with heavy amounts of dried on or hard to clean baked on food For best results add prewash detergent OPTIONS Control Purpose Hi Temp Wash Helps remove tough baked on food Sani Rinse Sanitizes dishes and glassware in accordance with NSF International NSF ANSI Standard 184 for Residential Dishwashers See this section in the Owner s Manual Heat Dry Dries dishes with heat Load plastic item...

Page 18: ...will not be washed right away Do not use detergent OPTIONS Control Purpose Hi Temp Wash Helps remove tough baked on food Sani Rinse Sanitizes dishes and glassware in accordance with NSF International NSF ANSI Standard 184 for Residential Dishwashers See this section in the Owner s Manual Heat Dry Dries dishes with heat Load plastic item in upper racks Extended Heat Dry Increases the Energy used fo...

Page 19: ...aked on food Sani Rinse Sanitizes dishes and glassware in accordance with NSF International NSF ANSI Standard 184 for Residential Dishwashers See this section in the Owner s Manual Heated Dry Short Some Models Power Dry Short Dries dishes with heat Load plastic item in upper racks Dries dishes with heat and a fan Load plastic item in upper racks Heated Dry Long Some Models Power Dry Long Increases...

Page 20: ...GENERAL INFORMATION 1 16 n Whirlpool and KitchenAid Filtration and Maytag 24 Microfiltration Dishwashers Notes ...

Page 21: ...ection 2 Diagnostics and Troubleshooting This section provides diagnostics fault codes and troubleshooting information for the Whirlpool and KitchenAid Filtration and Maytag 24 Microfiltration Dishwashers Safety Service Diagnostics Cycle Timing Service Diagnostics Cycle Notes Service Error Codes Troubleshooting Guide ...

Page 22: ...ge 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 Use an antistatic wrist strap Connect wrist strap to green ground connection point or unpainted metal in the appliance OR Touch your finger repeated...

Page 23: ...key press required to resume Press Key 3 Error Code History Display Up to 5 unique codes are saved in the history Most recently detected error code is displayed first If no faults are present numeric display will show or Clean LED will be off Depending on display type Press third key to advance to next error code stored Three tones are played when the end of the error code history has been reached...

Page 24: ...are responsive fault may be intermittent or caused by customer use Check for vent and or fan fault which may lead to excessive moisture build up in door cavity and cause keys to appear stuck closed 3 Thermistor OWI 1 Open or Shorted Open or shorted connection or component in temperature sensing circuit Open shorted or faulty temperature sensor Temperature sensor input on control failed Incoming wa...

Page 25: ...ate and door closure force Verify door seal is seated properly Check for interference between dish racks and door Try bending strike plate down for better engagement 2 Unplug dishwasher or disconnect power 3 Check resistances of door switch contacts and all connections in the door switch circuit with meter while opening and closing the door latch If high resistance with door closed check fix loose...

Page 26: ...not getting power to the wash motor replace control 8 Inlet Water 1 No water No water to dishwasher Verify water supply is turned on and supply line adequate Check for kinked fill hose Bowls or pots loaded or flipped upside down and captured wash water Instruct customer on loading Refer to Owner s Manual Water leaking from dishwasher Check for leaks under dishwasher Fill valve or water line plugge...

Page 27: ...nce another overfill and service call in the future Overfill switch stuck in open up position 1 Remove access panel and inspect overfill switch assembly and pan for water or obstruction Verify that Styrofoam float is able to move freely and you hear the click of switch contacts when it is down 2 Unplug dishwasher or disconnect power and check resistance of overfill switch Switch should be shorted ...

Page 28: ... when water is flowing replace water inlet assembly 9 Draining 1 Not draining Obstructed drain hose or path 1 Unplug dishwasher or disconnect power 2 Check for blockages from drain motor to customer s plumbing Check for plugged garbage disposal or plug not knocked out plugged hoses or drain check valve stuck Drain pump impeller damaged 1 Unplug dishwasher or disconnect power 2 Remove drain pump an...

Page 29: ...the vent circuit Fix replace open connection part Open fuse on control to vent Refer to Fuse Service and Resistance Check in section 3 Vent drive circuit on control 1 Unplug dishwasher or disconnect power 2 Check resistances of vent wax motor and all connections in the vent circuit If all connections and wax motor measure good replace control 3 Drying fan electrical problem Loose connection in fan...

Page 30: ...keypad s and control User interface on this model is not compatible with control which has been exchanged with a control from another model Unplug dishwasher or disconnect power Verify correct control is installed for this model Control is specific to each user interface and model type Call techline to verify part numbers if necessary If incorrect control replace Control detected door switch probl...

Page 31: ... parts due to vent and or fan problem Check fault code history for vent and or fan faults Refer to Service Error Codes table Verify that vent closes and fan turns on Refer to Leaks or drips on cabinet or floor F10E2 FAE2 F10E3 FAE3 User interface failure 1 Unplug dishwasher or disconnect power 2 Replace user interface Dishwasher beeps constantly User opened door during cycle and closed door withou...

Page 32: ...ater with low voltage Check for at least 100 VAC at power source Incoming water under 84 F 29 C 1 Ensure dishwasher is connected to the hot water supply 2 Confirm temperature at sink Recommended is 120 F 49 C 3 Unplug dishwasher or disconnect power and check all connections and measure resistance in temperature sensing circuit Reconnect and or replace parts Suds or air in pump requires repeated wa...

Page 33: ...or Codes table Use service diagnostics mode to get fault history from appliance F1E1 F7E2 F8E1 F8E4 F8E5 F9E1 F10E5 FAE5 Film or spots on glasses and or dishes Customer not using rinse aid and or Heated Dry Check rinse aid level in dispenser Instruct customer how to fill and monitor level of rinse aid Rinse Aid dispenser problem Refer to Service Error Codes table F10E1 FAE1 Hard water leaving film...

Page 34: ...r assembly Clean or replace clogged components Ensure that filters are fully seated in sump 4 If hard water is present instruct customer on proper maintenance Spray arms not rotating or plugged 1 Check arm rotation If arms are blocked by dish item instruct customer Also check for correct upper spray arm alignment with docking station located on feed tube at back tub wall 2 Check nozzles If they ar...

Page 35: ...nitor level of rinse aid Customer not using Heated Dry option Recommend use of Heated Dry or Extended Dry to customer Rinse aid dispenser problem Refer to Service Error Codes table F10E1 FAE1 Fan problem Refer to Service Error Codes table F10E3 FAE3 Heating problem Refer to Service Error Codes table F4E2 F4E3 Control is programmed to stop cycle and alert customer when certain fault codes have been...

Page 36: ... power source Air pressure surges due to washing with high suds causes brief opening of door switch contacts during final rinse Refer to Service Error Codes table F8E3 Melted dishware and or spray arm and or dishwasher always hot Customer uses non dishwasher safe dishes or loads plastic dishes directly over heater Instruct customer Temperature sensing problem Refer to Service Error Codes table F3E...

Page 37: ...on in vent circuit and or open vent wax motor Unplug dishwasher or disconnect power and check resistances of vent wax motor and all connections in vent circuit Fix replace open connections part F10E2 FAE2 Open fuse on control to vent wax motor Refer to Fuse Service and Resistance Check in section 3 Vent drive circuit on control failed Unplug dishwasher or disconnect power and check resistances of ...

Page 38: ...DIAGNOSTICS AND TROUBLESHOOTING 2 18 n Whirlpool and KitchenAid Filtration and Maytag 24 Microfiltration Dishwashers For Service Technician Use Only Notes ...

Page 39: ... Dishwashers n 3 1 Section 3 Component Testing This section provides the wiring diagram and component location for the Whirlpool and KitchenAid Filtration and Maytag 24 Microfiltration Dishwashers Safety Wiring Diagram Component Testing Component Location Component Location GWS Model ...

Page 40: ...uctions Keep other people a safe distance away from the appliance to prevent potential injury Always use the proper testing equipment After voltage measurements always disconnect power before servicing 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 w...

Page 41: ...0 4 LT BU P6 BU P8 PK P12 VT P14 BR Analog Input Door Open Detection MOTOR RELAY OR OR SMD FUSE FUSE 4 3 2 1 ELECTRONIC CONTROL RELAY RETURN LINE THAT GOES THRU DOOR SWITCH RELAY RETURN LINE THAT BYPASSES DOOR SWITCH Triac Load Current Sensing POWER SUPPLY VEE VDD REF 5 V 12 V L N 1 2 3 4 1 3 4 6 1 3 4 6 1 2 3 6 7 8 9 10 11 5 4 1 2 3 5 4 1 P9 RD 2 3 5 INPUT NTC INPUT INPUT INPUT INPUT OPT SIG TURB...

Page 42: ...T Drain ALARMS MAX POSSIBLE POPULATION 1 2 3 P4 5 V 12 V SEE TABLE BELOW FUSE ON SOME MODELS OR FUSE 12 V Drive 12 V Drive 12 V Drive HTR L RELAY HTR N RELAY PILOT RELAY WH wire N L1 HEATER H L STAT BU WH wire BU RD wire BK wire FUSE ON SOME MODELS P5 BR M DRAIN MOTOR 120 V 60 Hz 27 33 Ω APPROX 60W at 3200 RPM 120 V 60 Hz 5 W 1200 1600 Ω 120 V 60 Hz 3 W 1100 1400 Ω FILL VALVE M DIVERTER SPRAY ARM ...

Page 43: ...stance of all loads on fuse If any loads are open shorted or have evidence of overheating or pinched wires replace them Component Testing Testing Dishwasher Components from the Control Before testing any of the components perform the following checks The most common cause for mis diagnosed control failure is poor connections Therefore disconnecting inspecting and reconnecting wires will be necessa...

Page 44: ... RELEASE CONTROL ASSEMBLY CONTROL PANEL SNAP LOCKS CONTROL IN PLACE DIAGNOSTIC LED CONNECTOR BRACE TO REMOVE PINCH ARMS AND ROTATE CONNECTOR BOX BUTTONS ON BOTTOM OF CONTROL HOUSING SLIDE INTO KEYHOLE SLOTS ON CONTROL PANEL TO SUPPORT THE CONTROL ROTATE 4 3 2 1 P4 P5 LT BLU P6 BLUE P8 PINK P12 VIOLET 1 2 3 4 1 3 4 6 1 3 4 6 1 3 5 7 9 11 1 3 5 1 3 5 7 1 3 5 7 1 3 5 6 P14 BROWN P9 RED P10 YELLOW P11...

Page 45: ...INCH TO RELEASE ROTATE CONNECTOR BOX CONNECTOR BRACE TO REMOVE PINCH ARMS AND ROTATE BUTTONS ON BOTTOM OF CONTROL HOUSING SLIDE INTO KEYHOLE SLOTS ON CONTROL PANEL TO SUPPORT THE CONTROL DIAGNOSTIC LED CONTROL PANEL SNAP LOCKS CONTROL IN PLACE PINCH TO RELEASE 4 3 2 1 P4 P5 LT BLU P6 BLUE P8 PINK P12 VIOLET 3 5 6 1 3 4 6 1 3 4 6 1 3 5 7 9 11 P14 BROWN P9 RED P10 YELLOW P11 ORANGE NEUTRAL DC GND L1...

Page 46: ... block screw head N and red probe on black terminal block screw head L1 5 Plug in dishwasher or reconnect power If 120 VAC is present unplug dishwasher or disconnect power and proceed to step 6 If 120 VAC is not present have customer correct power 6 Remove the outer door panel to access the control board 7 Remove cover from control board and locate connector P4 8 With a voltmeter set to AC connect...

Page 47: ... mechanism switch closed If 3 ohms or less is measured proceed to step 7 If high resistance is measured when door is closed check for loose connections and repair as needed 9 Using an ohmmeter measure across P12 pins 9 and 11 with the door open strike removed from latch mechanism switch open If reading is infinite go to step 8 If reading shows continuity or door switch is damaged replace door swit...

Page 48: ... valve If an open circuit is detected check connections and harness continuity between control and fill valve If good replace the fill valve 7 Reconnect P6 to control board 8 Set voltmeter to AC and connect leads to test pads P6 1 and P6 3 on the control board Plug in dishwasher or reconnect power 9 Start the Diagnostics Cycle and at the proper interval measure for AC out of the control board betw...

Page 49: ...ted check connections and harness continuity between control and dispenser If good replace the dispenser solenoid 7 Reconnect P12 to control board 8 Set voltmeter to AC and connect leads to test pads P12 5 and P12 7 on the control board Plug in dishwasher or reconnect power 9 Start the Diagnostics Cycle and at the proper interval measure for AC out of the control board between P12 5 to P12 7 Refer...

Page 50: ...hi limit Replace heater element or hi limit thermostat if it is electrically open Repair or replace wire harness if test fails continuity 6 Reconnect P4 to control board 7 Set voltmeter to AC and connect leads to test pads P4 2 and P4 3 on the control board Plug in dishwasher or reconnect power 8 Start the Diagnostics Cycle and at the proper interval measure for AC out of the control board between...

Page 51: ...he OWI Sensor If an open circuit is detected check connections and harness continuity between control and OWI If good replace the OWI Sensor 6 Using an ohmmeter check P10 1 to cabinet ground and P10 3 to cabinet ground If no short is indicated go to step 7 If either pin indicates continuity to ground short repair or replace wiring harness and retest 7 Reconnect P10 to control board 8 Test for 5 VD...

Page 52: ...es found 6 Disconnect connector P11 from control board 7 Using an Ohmmeter measure across P11 pins 6 and 7 with the float assembly connected and installed in the leak pan If 3 ohms or less is measured go to step 8 If high resistance is measured check for loose connections and repair replace as needed 8 Using an Ohmmeter measure across P11 pins 6 and 7 with the Styrofoam floater lifted up switch sh...

Page 53: ...e the diverter assembly If an open circuit is detected check connections and harness continuity between control and diverter assembly If good replace the diverter assembly 7 Reconnect P6 to control board 8 Set voltmeter to AC and connect leads to test pads P6 4 and P6 6 on the control board Plug in dishwasher or reconnect power 9 Start the Diagnostics Cycle and at the proper interval measure for A...

Page 54: ...ity test fails repair or replace harness as needed 7 To test diverter switch set up voltmeter for DC voltage and connect red lead to P11 2 and black lead to P10 2 8 Plug in dishwasher or reconnect power 9 Run the Service Diagnostics Cycle as stated in Step 1 and you should observe the diverter position switch closing momentarily and then reopening as it reaches each potential position DC voltage s...

Page 55: ...ntrol board Plug in dishwasher or reconnect power 11 Start the Diagnostics Cycle and at the proper interval measure for AC out of the control board between P5 1 and P5 2 Refer to Wash Motor Strip Circuit below If no AC voltage is measured replace the control board and retest If 120 VAC is measured and wash motor is running go to step 12 If 120 VAC is measured and wash motor is not running go to st...

Page 56: ...ash motor fuse some models Using an ohmmeter measure the resistance between P5 1 and P5 4 If the resistance is less than 3 ohms fuse is good Go to step 8 If the resistance is greater than 3 ohms replace the control 8 Reconnect P5 to control board 9 Set voltmeter to AC and connect leads to test pads P5 1 and P5 2 on the control board Plug in dishwasher or reconnect power 10 Start the Diagnostics Cy...

Page 57: ...nd outer door panels to access control board 5 Unplug connector P5 from control board 6 Check the wash motor using an ohmmeter measure the resistance between P5 1 and P5 2 If the resistance is between 16 18 ohms the wash motor and harness are good Go to step 7 If outside the range replace the wash motor If an open circuit is detected check connections and harness continuity between control and was...

Page 58: ...27 33 ohms the drain motor and harness are good Go to step 8 If outside the range replace the drain motor If an open circuit is detected check connections and harness continuity between control and drain motor If good replace the drain motor 8 Reconnect P5 to control board 9 Set voltmeter to AC and connect leads to test pads P5 3 and P5 4 on the control board Plug in dishwasher or reconnect power ...

Page 59: ...ween 27 33 ohms the drain motor and harness are good Go to step 8 If outside the range replace the drain motor If an open circuit is detected check connections and harness continuity between control and drain motor If good replace the drain motor 8 Reconnect P5 to control board 9 Set voltmeter to AC and connect leads to test pads P5 5 and P5 6 on the control board Plug in dishwasher or reconnect p...

Page 60: ... control and fan motor If good replace the fan motor assembly 6 Reconnect P14 to control board 7 Set voltmeter to DC and connect leads to test pads P14 1 and P14 2 on the control board Plug in dishwasher or reconnect power 8 Start the Diagnostics Cycle and at the proper interval measure for DC out of the control board between P14 1 and P14 2 Refer to DC Fan Motor Strip Circuit below IMPORTANT The ...

Page 61: ...onnect and retest Interior LED Lighting 5 Disconnect P9 from the Control Board 6 Measure each LED light individually using the diode check setting on the multimeter Meter should display a numeric reading from anode to cathode and OL reading from cathode to anode refer to strip circuit below If LED check passes go to step 7 If any of the LEDs do not pass the check replace the defective LED individu...

Page 62: ...en ACU Setting File and firmware User Interface UI This test will check the wiring to the user interface and the user interface itself The following items are part of the user interface circuit Harness Connection User Interface UI Status LED On some models Control Board Test Procedure 1 Verify that the control lock out feature has not been turned on by the customer If unit will not run or power up...

Page 63: ...irlpool and KitchenAid Filtration and Maytag 24 Microfiltration Dishwashers n 3 25 Component Location A B C D E F G A Water Feed Tube B Water Inlet Opening C Coarse Filter D Heating Element E Detergent Dispenser F Active Vents On Some Models G Lower Spray Arm ...

Page 64: ...chenAid Filtration and Maytag 24 Microfiltration Dishwashers Component Location GWS Model A B C D E F G H A Water Feed Tube B Water Inlet Opening C Fine Filter Plate D Heating Element E Detergent Dispenser F Active Vents On Some Models G Lower Spray Arm H Dual Filter Assembly ...

Page 65: ...ke Siphon Break Accessing Door Components Removing the Inner Door and Hinges ProDry Assembly Removing User Interface and Door Latch Removing Dispenser Assembly Removing the Upper Rack for SatinGlide rails Removing the Third Level Rack available on some models Removing Lower Spray Arm and Manifold Assembly Removing Heater Assembly Removing Drain Pump Under the Tub Components Drip Pan and Float Asse...

Page 66: ...e hooks located on each side of the tube Removing Door Latch Strike 1 Open the dishwasher door 2 Press down on the round tab in front of the door latch strike 3 While pressing down on the round tab depress the two outside bars and pull out the latch WARNING Electrical Shock Hazard Disconnect power before servicing Failure to do so can result in death or electrical shock Replace all parts and panel...

Page 67: ...c C clamp securing drain pump hose to siphon break and pull hose down and away from siphon break assembly 5 Disconnect drain pump output hose Using pliers squeeze drain hose output clamp and pull down on hose away from siphon break assembly 6 Using pliers squeeze plastic retainer together and pull siphon break assembly out and up to remove WARNING Electrical Shock Hazard Disconnect power before se...

Page 68: ...mage NOTE Leave the short screw to the left of the door latch in place as this screw secures the door latch to the door 3 Lift the outer door assembly up and away with enough room to disconnect the ACU harness and clip Unclip the harness from the harness retaining clip WARNING Electrical Shock Hazard Disconnect power before servicing Failure to do so can result in death or electrical shock Replace...

Page 69: ...U cover on door Push up on the connector tab and pull the harness connector off the board Remove ACU 5 To remove ACU use a flat blade screwdriver to push in on tab Then lift up on ACU and slide to the left 6 Turn the ACU assembly over and depress the three tabs to release the wire harness connector cover Disconnect wire harness connectors and replace ACU ...

Page 70: ...own in below image This will keep the hinge slightly open and make replacing the inner door easier 4 Remove the two TORX T20 screws attaching the inner door panel to the hinge and repeat for other hinge Then lift up on inner door to remove Removing the Hinge 5 Using a 5 16 nut driver remove two rear screws and use a 1 4 nut driver to remove the front two screws Repeat the step for other hinge WARN...

Page 71: ...nd remove 3 The ProDry assembly can now be removed 4 Disconnect wax motor connector by pressing down on tab and lifting up on harness connector 5 Remove fan harness by pushing down on tab and lifting up on harness Refer the below image 6 To remove vent assembly use a screwdriver to push in on tab shown and pull vent away from wax motor WARNING Electrical Shock Hazard Disconnect power before servic...

Page 72: ...X T15 screwdriver to remove the three 3 screws securing the UI to the outer door panel NOTE The light pipe is not removed during UI replacement It remains attached to the outer door panel Remove Latch Assembly 4 Use a TORX T15 screwdriver to remove the one screw attaching the Latch Assembly to the door panel WARNING Electrical Shock Hazard Disconnect power before servicing Failure to do so can res...

Page 73: ...isconnect dispenser harness by pushing down on harness retainer while pulling the harness from the dispenser 4 Remove dispenser by prying each clip away from the dispenser and lifting it away from the door panel Locking Clips for Dispenser Assembly WARNING Electrical Shock Hazard Disconnect power before servicing Failure to do so can result in death or electrical shock Replace all parts and panels...

Page 74: ...p the front end of the rack out of the track 4 Then repeat this step on the other side to completely remove the front end of the rack 5 Then remove the back end of the rack by pulling the back end out with a slightly forward and then upward motion Remove Roller and Rack Adjuster Assembly 6 Remove rack adjust retainer Using a flat blade screwdriver push in on the tab 7 While pushing in on tab lift ...

Page 75: ... rack adjust and remove Remove Spray Arm Assembly 1 Complete the steps 1 5 from Removing the Upper Rack for SatinGlide rails section 2 Using a flat blade screwdriver push in on the tab 3 Pull spray arm assembly away to remove Reinstall Spray Arm Assembly 1 Align spray arm assembly as shown in below image and push into place NOTE Spray arm assembly is offset 2 Push up on spray arm assembly to lock ...

Page 76: ...wheels up and out of the track 5 Close track stops 6 Slide rack tracks back into dishwasher Removing the Rack Rails 1 Turn white plastic rail retainers counterclockwise to remove third level rack rails 2 Use a 5 16 nut driver to remove the four bolts holding the upper rack rail Remove Wash Tube Cover 1 Complete the steps 1 6 from Removing the Third Level Rack section 2 Pry two tabs outward and pus...

Page 77: ...o remove Tube Hanger from the Tube Hanger Bracket push Hanger in direction shown in below image Remove Roller Assembly 6 Using a flat blade screwdriver push in on the three tabs Then lift roller assembly up and away from rack Remove Spray Bar Cover 7 Use a flat blade screwdriver to pry four locking tabs to remove spray bar cover Remove Spray Bar 8 Use a flat blade screwdriver to pry locking tab to...

Page 78: ...r Rack section 3 Complete the steps 1 6 from Removing the Third Level Rack section 4 To remove lower spray arm lift up and turn counterclockwise Remove Filter Cover 5 To remove filter cover remove four TORX T15 screws Remove Manifold Assembly 6 To remove manifold assembly remove two TORX T15 screws at diverter cover 7 Starting at the top use a flat blade screwdriver to press in on the four tabs Th...

Page 79: ...sconnect drain hose if necessary Unscrew anchors to cabinet 4 Locate the drain pump in the lower front right of dishwasher 5 Push in on tab and turn drain pump 1 4 turn counterclockwise to remove 6 Remove plastic wire harness connector retainer by pulling it straight out Push in on connector retainer and remove harness WARNING Electrical Shock Hazard Disconnect power before servicing Failure to do...

Page 80: ...d Filtration and Maytag 24 Microfiltration Dishwashers Under Tub Components A B C D E F G H I J K A Fill Valve B OWI Sensor C Sump D Drain Hose E Junction Box F Drain Pump Bracket G Thermostat H Diverter I Rotating Inlet Filter J Wash Motor K Drain Pump ...

Page 81: ...s the connector latch tab and then pull the connector out of the housing To remove the float push in on the two tabs and lift up on the float Removing Sump and Motor Assembly 1 Unplug dishwasher or disconnect power 2 Complete the steps 1 4 from Drip Pan and Float Assembly section 3 Complete the steps 1 7 from Removing Lower Spray Arm and Manifold Assembly section 4 Remove four 4 TORX T15 screws to...

Page 82: ...nd lay it on it s back 9 Move junction box out of the way by twisting up on left side and pulling it up and away from the retaining bar 10 To remove plastic drain pump bracket use a standard screwdriver to push down on tab and push bracket away from you 11 Remove black plastic hose retainer and disconnect drain hose from drain pump port 12 Complete the steps 1 6 from Removing Drain Pump section 13...

Page 83: ...rness from the sump Disconnect wire harness connectors to diverter motor and wash motor 15 Remove OWI by turning in counterclockwise a quarter turn 16 Slide sump and motor assembly to the left along the rear bracket Lift up on the left side of the assembly and pull it up and away from the rear bracket 17 Remove thermostat and bracket using a TORX T15 screwdriver ...

Page 84: ...lpool and KitchenAid Filtration and Maytag 24 Microfiltration Dishwashers Under Tub Components GWS Model D C B A E F H G I A Fill Valve B Sump C OWI Sensor D Junction Box E Thermostat F Drain Pump G Diverter H Inlet Filter I Wash Motor ...

Page 85: ...connect electrical under sink or at junction box if needed 8 Pull dishwasher out from under the counter and lay it on it s back 9 Cut the hose clamp crimp to remove the hose to the sump NOTE For reconnecting the hoses re crimp a new replacement clamp in the positions shown in the figure 10 Press in both sides of the TPA to remove the connector from the housing Pull the TPA out of secured position ...

Page 86: ... the locator motor bracket 13 Push locator away from grommet center to remove 14 Remove the motor assembly Sump Assembly GWS Model 15 Unclip harness from the sump Remove thermostat and disconnect wire harness connectors to diverter motor and wash motor 16 Remove OWI by turning in counterclockwise a quarter turn 17 Slide sump assembly to the left along the rear bracket Lift up on the left side of t...

Page 87: ...UMBER READY TO IDENTIFY YOU AS AN AUTHORIZED IN HOME SERVICE PROFESSIONAL FOR LITERATURE ORDERS CUSTOMER EXPERIENCE CENTER PHONE 1 800 851 4605 FOR TECHNICAL INFORMATION AND SERVICE POINTERS www servicematters com IN CANADA FOR PRODUCT SPECIFICATIONS AND WARRANTY INFORMATION CALL 1 800 461 5681 FOR TECHNICAL ASSISTANCE WHILE AT THE CUSTOMER S HOME CALL THE TECHNICAL ASSISTANCE LINE 1 800 488 4791 ...

Page 88: ...Whirlpool and KitchenAid Filtration and Maytag 24 Microfiltration Dishwashers W11447459 ...

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Whirlpool M-17, Technical Manual

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