Troubleshooting Guide - Whirlpool W11440958 Technical Manual

Displayed Code Explanation and Recommended Procedure
Indicates a problem in the supply voltage to the machine.
F4E7
To troubleshoot:
1. Perform
2. Perform
3. Replace ACU.
Indicates that there is a Short in the Door Switch circuit.
F5E1
To troubleshoot:
•
•
Indicates a communication failure between the HMI and the ACU.
F6E1
To troubleshoot:
OR
F6E2 •
F6E3 Indicates that the ACU does not receive data from the Motor MCU.
To troubleshoot:
•
F9E2 Error indicated that the drain system has a failure.
To troubleshoot:
•
Problem
Will Not Power Up
• No operation
• No keypad response
• No LEDs or display
Will Not Start Cycle
(No response when Start is
pressed)
Will Not Heat
For Service Technician Use Only
Test #1.
Test #2.
Perform Test #1 to diagnose if the ACU is at fault.
Check Door Switch circuit by Performing
Perform Test #10
Perform Test #3
Perform Test #8

Troubleshooting Guide

Possible Cause
No power to dryer.
Connection problem between AC plug and dryer.
Connection problem between ACU and HMI.
Power supply not present at machine electronics.
HMI problem.
Bottom lint filter not present or not positioned
properly (filter icon showing in display).
Door not fully closed/not striking the door latch.
Door switch problem.
Drive belt problem.
Motor problem.
HMI or communication problem.
ACU problem.
Check installation.
Check for L1 and L2.
Heater system malfunction.
NTC thermistor problem.
ACU problem.
DIAGNOSTICS and TROUBLESHOOTING (Cont.)
Test #7.
Check power at outlet; check circuit breaker,
fuses, or junction box connections.
See Test #2: Supply Connections,
Check connections and harness continuity
between ACU and HMI.
See Test #1: ACU Power Check,
See Test #6: Buttons and Indicators,
Place bottom lint filter into position and make
sure it is fully inserted. See Test #9: Secondary
Lint Filter Switch,
Be sure the door is completely closed, then
press and hold START.
See Test #7: Door Switch,
See Test #3: Motor Circuit,
See Test #3: Motor Circuit,
See Test #6: Buttons and Indicators,
and
Test #10: Communication Between HMI and
ACU, page
See Test #1: ACU Power Check,
Verify proper dryer installation.
See Test #2: Supply Connections,
See Test #4: Heat System,
See Test #4b: Thermistors,
See Test #1: ACU Power Check,
Whirlpool 24" Compact Condensing Dryer
®
Checks and Tests
page
page 3-5.
page
page 3-10.
page 3-9.
page 3-6.
page 3-6.
page 3-9
3-10.
page 3-5.
page
page 3-7.
page 3-7.
page 3-5.
3-5.
3-9.
3-5.
2-5
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