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Whirlpool CAE2793BQ Technical Sheet

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CAE2793BQ_Technical Sheet
When performing live voltage measurements, you must do the following:
 Verify the controls are in the off position so that the appliance does not start when energized.
 Allow enough space to perform the voltage measurements without obstructions.
 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. Most people begin to feel an ESD discharge at approximately
3000V. It 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
Touch your finger repeatedly to a green ground connection point or unpainted metal in the appliance.
 Before removing the part from its package, touch the anti-static bag to a green ground connection
point or unpainted metal in the appliance.
 Avoid touching electronic parts or terminal contacts; handle electronic control assembly by edges only.
 When repackaging main control assembly in anti-static bag, observe above instructions.
IMPORTANT SAFETY NOTICE - "For Technicians only"
This service data sheet is intended for use by persons having electrical, electronic, and mechanical
experience and knowledge at a level generally considered acceptable in the appliance repair trade.
Any attempt to repair a major appliance may result in personal injury and property damage. The
manufacturer or seller cannot be responsible, nor assume any liability for injury or damage of any
kind arising from the use of this data sheet.
Diagnostic Guide ................................................................2
Activating Service Diagnostic Test Modes ..........................2
Diagnostic Test Modes .................................................... 3-5
Customer Viewable Fault Codes ........................................5
Service Fault / Error Codes .............................................6, 7
Quick Overview Tests ..........................................................8
DO NOT REMOVE OR
PART NO. W10554748C
DESTROY
FOR SERVICE TECHNICIAN'S USE ONLY
Voltage Measurement Safety Information
Contents
- OR -
Manual Overview Tests .......................................................9
Troubleshooting Guide ...............................................10, 11
Troubleshooting Tests ................................................. 12-18
Main Control Connectors & Pinouts .................................12
Component Locations & Washer Specs ..........................19
Wiring Diagram .................................................................20
PAGE 1

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  Summary of Contents for Whirlpool CAE2793BQ

  • Page 1: Table Of Contents

    CAE2793BQ_Technical Sheet FOR SERVICE TECHNICIAN’S USE ONLY Voltage Measurement Safety Information When performing live voltage measurements, you must do the following:  Verify the controls are in the off position so that the appliance does not start when energized.  Allow enough space to perform the voltage measurements without obstructions. ...
  • Page 2: Diagnostic Guide

    FOR SERVICE TECHNICIAN’S USE ONLY DIAGNOSTIC GUIDE ACTIVATING THE SERVICE DIAGNOSTIC Before servicing, check the following: TEST MODES M ake sure there is power at the wall outlet.  1. Be sure the washer is in standby mode (plugged in with all H as a fuse blown or circuit breaker tripped? Was a regular ...
  • Page 3: Diagnostic Test Modes

    FOR SERVICE TECHNICIAN’S USE ONLY FAULT CODE DISPLAY MODE (Pgs 6–7) 3. There are several accessible Diagnostic Test Modes shown in the chart below. To select the desired Mode of Operation, To access fault/error codes, perform steps 1 and 2 of Activating toggle the cycle selector knob until the status LEDs match the Service Diagnostic Test Modes.
  • Page 4 FOR SERVICE TECHNICIAN’S USE ONLY QUICK OVERVIEW TEST MODE (Page 8) CALIBRATION MODE To access Quick Overview Test Mode, perform steps 1 and 2 of IMPORTANT: Calibration must be performed when any of Activating the Service Diagnostic Test Modes. Toggle the cycle the following components have been replaced: Main Control, selector knob until the status LEDs correspond as follows: Basket, Drive Assembly, Suspension, Motor, and Capacitor.
  • Page 5: Customer Viewable Fault Codes

    FOR SERVICE TECHNICIAN’S USE ONLY SOFTWARE VERSION DISPLAY MODE DRY FACTORY DIAGNOSTICS To access Software Version Display Mode, perform steps 1 and 2 This cycle is used by the factory to gather data for setting the of Activating the Service Diagnostic Test Modes. Toggle the cycle proper algorithms.
  • Page 6: Service Fault / Error Codes

    FOR SERVICE TECHNICIAN’S USE ONLY FAULT/ERROR CODES #1 — See page 3 to access Fault Code Display Mode. = ON FAULT/ERROR CODE – DESCRIPTION FAULT NUMBER ERROR NUMBER Status LEDs Status LEDs Explanation & Recommended Procedure (Status LED names may vary between makes and models) F0E0 –...
  • Page 7 FOR SERVICE TECHNICIAN’S USE ONLY FAULT/ERROR CODES #2 — See page 3 to access Fault Code Display Mode. = ON FAULT/ERROR CODE – DESCRIPTION FAULT NUMBER ERROR NUMBER Status LEDs Status LEDs Explanation & Recommended Procedure (Status LED names may vary between makes and models) F5E3 –...
  • Page 8: Quick Overview Tests

    FOR SERVICE TECHNICIAN’S USE ONLY QUICK OVERVIEW TEST MODE — See page 4 to access Quick Overview Test Mode. = ON Press the START button to begin the Quick Overview Test. IMPORTANT: Lid must be closed and locked to perform Quick Overview Test.
  • Page 9: Manual Overview Tests

    FOR SERVICE TECHNICIAN’S USE ONLY MANUAL OVERVIEW TEST MODE — See page 4 to access Manual Overview Test Mode. = ON Pressing the START button will activate/deactivate each output. When the output is activated, the corresponding Status LEDs will flash. IMPORTANT: Lid must be closed and locked to perform SPIN & AGITATE tests. OUTPUT STATUS LEDs Output Details...
  • Page 10: Troubleshooting Guide

    FOR SERVICE TECHNICIAN’S USE ONLY 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 CHECKS &...
  • Page 11: Troubleshooting Guide

    FOR SERVICE TECHNICIAN’S USE ONLY TROUBLESHOOTING GUIDE (continued) 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 CHECKS & TESTS Water hose installation.
  • Page 12: Troubleshooting Tests

    FOR SERVICE TECHNICIAN’S USE ONLY  I f 120VAC is present, go to step 6. TROUBLESHOOTING TESTS  I f 120VAC is not present, check the AC power cord TEST #1: Main Control for continuity (See Figure 9). 6.
  • Page 13 FOR SERVICE TECHNICIAN’S USE ONLY TEST #3a: Drive System – Shifter 8. Check if shifter assembly is affecting the main control DC supplies. This test checks connections, shifter motor, switch, a. Unplug washer or disconnect power. and optical sensor. b. Remove connector J2 from main control. NOTE: Refer to Figure 4, “Shifter Assembly Strip Circuit”...
  • Page 14 FOR SERVICE TECHNICIAN’S USE ONLY Shifter Switch: Shifter to Main Control & Drain Pump 9. With a voltmeter set to DC, connect the black probe to Shifter Connector Pin-2 to Main Control J16-2 J2-3 (Circuit Gnd) and red probe to J2-1 (Shifter Switch). Shifter Connector Pin-3 to Main Control J16-1 In manual test mode, switch between Spin and Agitate modes.
  • Page 15 FOR SERVICE TECHNICIAN’S USE ONLY  If visual checks pass, go to step 6.  If visual check passes, go to step 13.  If connectors are not inserted properly, reconnect J2 and J16  If connections are loose, reconnect the electrical and repeat step 1.
  • Page 16 FOR SERVICE TECHNICIAN’S USE ONLY  If the capacitor is either shorted or open, replace capacitor, NOTE 3: Each switch and the cycle selector knob is represented calibrate the washer, and repeat step 1. by the following status LEDs: - toggles (1) Sensing Load LED •...
  • Page 17 FOR SERVICE TECHNICIAN’S USE ONLY 4. Remove console to access controls. THERMISTOR RESISTANCE 5. Check hose connection between the pressure transducer Approx. Temperature Approx. Resistance or switch and the pressure dome attached to the tub. F° C° (K ) 6. Check to ensure hose is routed correctly in the lower cabinet and not pinched or crimped by the back panel.
  • Page 18 FOR SERVICE TECHNICIAN’S USE ONLY TEST #8: Lid Lock 2. Check the drain pump and electrical connections by performing the Drain Test under Manual Overview Test Mode Perform the following checks if the washer does not lock on page 9. The following steps assume that this step was (or unlock).
  • Page 19: Component Locations & Washer Specs

    FOR SERVICE TECHNICIAN’S USE ONLY Component Locations – Console & Valves (Figure 7) Hot Water Cold Water Pressure Transducer Coin Slide Valve Valve Air Hose Temperature Interface Thermistor Module Water Temperature Main Control Board Encoder Component Locations – Drive System & Drain Pump (Figure 8) Shifter Assy Shifter Assy Drive Belt and...
  • Page 20: Wiring Diagram

    FOR SERVICE TECHNICIAN’S USE ONLY Wiring Diagram (No payment system) (Figure 9) IMPORTANT: Electrostatic discharge may cause damage to machine control electronics. See page 1 for ESD information. NOTE: Schematic shows shifter in SPIN position, lock switch open, and motor off. Legend Coin Slide Interface Module (Figure 10) Coin Slide Connection...