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Whirlpool CAE2793BQ, Technical Sheet, Page: 10 / 20

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Whirlpool CAE2793BQ Technical Sheet Download Page 10

PAGE 10

FOR SERVICE TECHNICIAN’S USE ONLY

DO NOT REMOVE OR DESTROY

TROUBLESHOOTING GUIDE     

NOTE:

 Always check for error codes first (pgs. 6–7).

Some tests will require accessing components. See Figures 7 & 8, page 19, for component locations. For detailed troubleshooting 

procedures, refer to “Troubleshooting Tests” beginning on page 12.

PROBLEM

POSSIBLE CAUSE

No power to washer. 

Connection problem between AC plug 

and main control. 

Main control not properly installed

in console. 

Main control problem.
Lid lock mechanism not functioning. 

User Interface problem. 
Main control problem. 
User Interface problem. 
Main control problem. 
No water supplied to washer. 

Plugged filter/screen.

Drain hose installation. 

Valve problem. 

Main control problem. 
Pressure hose. 

Valve problem. 

Washer requires calibration. 

Main control problem. 

OVERFILLS 

WON’T POWER UP

• No operation

• No Status LEDs

WON’T START CYCLE

No response when  

Start Button is pressed.

UI WON’T ACCEPT 

SELECTIONS
WON’T FILL

CHECKS & TESTS

Check power at outlet, check circuit 

breakers, fuses, or junction box connections.
Check the AC power cord for continuity. 

See TEST #4: Console and Indicators, page 16.

See TEST #1: Main Control, page 12. 
1. Lid not closed due to interference.

2. Lock not closed due to interference. 

3. See TEST #8: Lid Lock, page 18.
See TEST #4: Console and Indicators, page 16. 

See TEST #1: Main Control, page 12.
See TEST #4: Console and Indicators, page 16. 

See TEST #1: Main Control, page 12.
1. Check water connections to washer. 

2. Verify hot and cold water supply is on.

Check for plugged filter or screen in the water 

valve or hoses.

Check for proper drain hose installation. 

See TEST #2: Valves, page 13. 

See TEST #1: Main Control, page 12. 
See TEST #6: Water Level, page 17. 

See TEST #2: Valves, page 13. 

Perform washer calibration on page 4. 

See TEST #1: Main Control, page 12. 

Pressure switch or onboard transducer. 

See TEST #6: Water Level, page 17. 

Is lid lock showing open during the cycle?

Drive belt. 

Harness connections. 

Shifter problem. 

Motor problem. 

Main control problem. 

WON’T SPIN

See TEST #8: Lid Lock, page 18.

Verify that drive belt is not damaged. 

Check harness connections between main 

control and drive system. 
See TEST #3a: Drive System–Shifter, page 13.  

See TEST #3b: Drive System–Motor, page 14. 

See TEST #1: Main Control, page 12. 

Tachometer problem. 

No tub movement or tub speed out of normal  

range (obstruction/belt/motor).

Water covering impeller?

Is lid lock showing open during the cycle?
Drive belt. 

Harness connections. 

Shifter problem. 
Motor problem. 

Main control problem. 

WON’T AGITATE

See TEST #6: Water Level, page 17. 

See TEST #8: Lid Lock, page 18.
Verify that drive belt is not damaged. 

Check harness connections between main 

control and drive system. 
See TEST #3a: Drive System–Shifter, page 13. 
See TEST #3b: Drive System–Motor, page 14.  

See TEST #1: Main Control, page 12. 

Tachometer problem. 

No tub movement or tub speed out of normal   

range (obstruction/belt/motor). 

Summary of Contents for CAE2793BQ

Page 1: ...t takes as little as 10V to destroy damage or weaken the main control assembly The new main control assembly may appear to work well after repair is finished but a malfunction may occur at a later date due to ESD stress Use an anti static wrist strap Connect wrist strap to green ground connection point or unpainted metal in the appliance OR Touch your finger repeatedly to a green ground connection...

Page 2: ...lowing Make sure there is power at the wall outlet Has a fuse blown or circuit breaker tripped Was a regular fuse used A time delay fuse is required Are both hot and cold water faucets open and water supply hoses unobstructed All tests checks should be made with a VOM volt ohm milliammeter or DVM digital voltmeter having a sensitivity of 20 000 Ω per volt DC or greater Resistance checks must be ma...

Page 3: ...to enter desired mode of operation Refer to the following pages for detailed information on each mode of operation FAULT CODE DISPLAY MODE Page 3 QUICK OVERVIEW TEST MODE Page 4 MANUAL OVERVIEW TEST MODE Page 4 CALIBRATION MODE Page 4 SALES DEMO MODE NOT FOR SERVICE USE UI TEST MODE Page 4 SW VERSION DISPLAY MODE Page 5 FACTORY DIAGNOSTICS If accessed washer must be recalibrated see Calibration Mo...

Page 4: ...multaneously NOTE Outputs left on will time out after 5 minutes CALIBRATION MODE IMPORTANT Calibration must be performed when any of the following components have been replaced Main Control Basket Drive Assembly Suspension Motor and Capacitor Calibration should also be performed when the washer is moved to a different location or more specifically to a different power outlet Not performing calibra...

Page 5: ...ating cycle The LED timing is derived from the tachometer signal itself Press and hold the START button for 3 seconds at any time to exit tachometer verification mode DRY FACTORY DIAGNOSTICS This cycle is used by the factory to gather data for setting the proper algorithms This cycle is the same for all washers and may indicate that some switches or valves are actuated that are not used Toggle the...

Page 6: ...s displayed when Suds prevent the basket from spinning up to speed or the pressure sensor detects rising suds level The main control will flush water in attempt to clear Suds If the water flush is unable to correct the problem this may indicate Not using HE detergent Excessive detergent usage Check pressure hose connection from tub to pressure sensor Is hose pinched kinked plugged or leaking air M...

Page 7: ... striker Main control cannot determine if lid lock is in an unlocked state See TEST 8 Lid Lock page 18 Fault is displayed when the water level does not change for a period of time OR water is present but main control does not detect the water level changing Is water supply connected and turned on Low water pressure fill times longer than six minutes Are hose screens plugged Check for proper drain ...

Page 8: ...ID WILL UNLOCK AND CYCLE COMPLETES STATUS LEDs If motor does not agitate go to Manual Overview Test Gentle or Heavy Agitation page 9 If water is not draining go to Manual Overview Test Drain page 9 Motor must be at 0 RPM If lid does not lock go to Manual Overview Test Lid Lock page 9 If water is not present or temperature is wrong go to Manual Overview Test Cold Valve page 9 If lid does not unlock...

Page 9: ...st read 0 and lid must be closed with lid lock enabled If lid is not closed status LEDs will flash on and off IMPORTANT Water in tub must be drained before test If motor does not spin go to TEST 3a 3b Drive System Shifter Motor pages 13 14 Spins basket from 0 to maximum RPM NOTE Allow up to 15 seconds for shifter to reposition IMPORTANT To activate High Spin RPM must read 0 and lid must be closed ...

Page 10: ...ntrol page 12 See TEST 4 Console and Indicators page 16 See TEST 1 Main Control page 12 1 Check water connections to washer 2 Verify hot and cold water supply is on Check for plugged filter or screen in the water valve or hoses Check for proper drain hose installation See TEST 2 Valves page 13 See TEST 1 Main Control page 12 See TEST 6 Water Level page 17 See TEST 2 Valves page 13 Perform washer c...

Page 11: ...EST 2 Valves page 13 3 See TEST 6 Water Level page 17 1 Overloaded washer 2 Oversuds see above 3 Items caught in tub sump 7 See TEST 7 Drain Pump page 17 1 Check proper water supply 2 Not using HE detergent 3 Washer not loaded properly 5 See TEST 2 Valves page 13 1 Washer not loaded properly 2 Not using HE detergent 3 Not using correct cycle 4 Shifter not moving into position see TEST 3a page 13 1...

Page 12: ... ROW 4 J10 5 RED ROW 5 J10 4 RED COLUMN 0 J10 3 RED COLUMN 1 J10 2 RED COLUMN 2 J10 1 RED COLUMN 3 J11 6 BLK ROW 2 J11 5 BLK ROW 3 J11 4 BLK COLUMN 0 J11 3 BLK COLUMN 1 J11 2 BLK COLUMN 2 J11 1 BLK COLUMN 3 J15 4 RED LOCK SWITCH J15 3 WHT NEUTRAL J15 2 BLU LID SWITCH INPUT J15 1 YEL LOCK SWITCH SOLENOID L1 J16 7 ORN MOTOR CCW WINDING L1 J16 6 RED MOTOR CW WINDING L1 J16 5 WHT MOTOR NEUTRAL J16 4 O...

Page 13: ...e main control and calibrate washer Perform Quick Overview Test to verify repair TEST 3a Drive System Shifter This test checks connections shifter motor switch and optical sensor NOTE Refer to Figure 4 Shifter Assembly Strip Circuit on page 14 for tests and measurements IMPORTANT Drain water from tub before accessing bottom of washer Functional Check 1 Check the shifter and electrical connections ...

Page 14: ... Calibrate washer and perform Quick Overview Test to verify repair 17 If the preceding steps did not correct the problem replace the main control a Unplug washer or disconnect power b Replace the main control c Reassemble all parts and panels d Plug in washer or reconnect power Calibrate washer and perform Quick Overview Test to verify repair TEST 3b Drive System Motor This test checks the motor m...

Page 15: ...repeat step 1 13 With an ohmmeter check the harness for continuity between the main control motor and run capacitor using the following test points If there is continuity go to step 14 If there is no continuity replace the lower machine harness and repeat step 1 14 With an ohmmeter check resistance of motor windings at the following motor connections Motor Winding J16 Pinout Size Resistance CCW Wi...

Page 16: ...estion Reference the wiring diagram on page 20 when performing the following procedures a Verify the switch connector is inserted all the way into the main control b Check the harness between the switch and main control for continuity Check for shorts c Replace the switch d Replace the main control NOTE 3 Each switch and the cycle selector knob is represented by the following status LEDs toggles 1...

Page 17: ...y there is no water suds or debris in the hose or dome Disconnect hose from main control or pressure switch and blow into hose to clear water suds or debris 8 Check hose for leaks Replace if needed 9 If the preceding steps did not correct the problem go to step 10 if troubleshooting a pressure switch or step 11 if troubleshooting an onboard pressure transducer 10 Pressure Switch Only a Remove the ...

Page 18: ...her or disconnect power b Replace the main control c Reassemble all parts and panels d Plug in washer or reconnect power Calibrate washer and perform Quick Overview Test to verify repair TEST 8 Lid Lock Perform the following checks if the washer does not lock or unlock 1 Perform the Lid Lock test under Manual Overview Test Mode on page 9 The following steps assume that this step was unsuccessful 2...

Page 19: ...hifter Assy Connector 100 135 VAC Voltage 57 63 Hz Frequency 12 Amps Max Amps 15 Amp Instantaneous Type Fuse Main Control Circuit Protection 15 125 PSI Water Pressure 34 in to 8 ft 86 cm to 244 cm Drain Height 40 115 F 4 5 46 C Operating Temperature Range WASHER SPECIFICATIONS Main Control Board Hot Water Valve Cold Water Valve Pressure Transducer Air Hose Temperature Thermistor Coin Slide Interfa...

Page 20: ...ctronics See page 1 for ESD information NOTE Schematic shows shifter in SPIN position lock switch open and motor off Legend Sets to Pay jumper loaded or No Pay jumper removed Enables Thermistor jumper loaded Disables Thermistor jumper removed Enables DOE Rinse jumper loaded Disables DOE Rinse jumper removed Coin Slide Connection CCU Connection Coin Slide Interface Module Figure 10 ...

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