Troubleshooting Guide - Whirlpool WED99HEDW0 Technical Education

DIAGNOSTICS & TROUBLESHOOTING

Troubleshooting Guide

NOTE: Always check for error codes first (page 5-7)
Problem
Won't Power Up
• No operation
• No keypad
response
• No LEDs or display
Will Not Start Cycle
(No response when
START button is
pressed.)
Will Not Shut Off
When Expected
Console Won't Accept
Selections
Drum Will Not Spin
Will Not Heat
Heats in Air Cycle
Shuts Off Before
Clothes Are Dry
n
5-8 HybridCare™ Dryer with Heat Pump Technology
For Service Technician Use Only
Possible Cause
No power to dryer.
Connection problem between AC
plug and dryer.
Connections between CCU and UI.
Power supplies not present at
machine electronics.
User Interface problem.
Door not fully closed or striking the
door latch.
Door Switch problem.
Drive Belt problem.
Motor problem.
User Interface problem.
CCU problem.
Lint filter not present ("LF" is
displayed).
Poor airflow.
Check the Start/Pause button.
Moisture Sensor problem.
Thermistor problem.
User Interface problem.
CCU problem.
User selects invalid option.
User Interface problem.
Drive Belt problem.
Door switch problem.
Motor problem.
CCU problem.
Check Installation.
Check for L1 and L2.
Heater system malfunction.
CCU problem.
Heater coil shorted.
Heater relay shorted.
Heater system problem.
Dryness setting for auto cycle.
Lint screens full.
Moisture Sensor problem.
Adjust Customer Focused Dryness
Level.
Checks & Tests
Check power at outlet, check circuit breaker, fuses, or junction
box connections.
See Test #2: Supply Connections, page 6-6.
Check connections and harness continuity between CCU and UI.
See Test #1: CCU Power Check, page 6-4.
See Test #6: Buttons & Indicators, page 6-17.
Be sure the door is completely closed, then press and hold the
START button.
See Test #7: Door Switch, page 6-18.
See Test #3: Motor Circuit, page 6-8.
See Test #3: Motor Circuit, page 6-8.
See Test #6: Buttons & Indicators, page 6-17.
See Test #1: CCU Power Check, page 6-4.
Place the filter back into running position, and verify that it is
properly seated.
Check lint screens and fan. Clean if necessary.
Perform UI Component Test under Component Activation.
See Test #5: Moisture Sensor, page 6-15.
See Test #4c: Thermistors, page 6-14.
See Test #6: Buttons & Indicators, page 6-17.
See Test #1: CCU Power Check, page 6-4.
Refer customer to "Use and Care Guide".
See Test #6: Buttons & Indicators, page 6-17.
See Test #3: Motor Circuit, page 6-8.
See Test #7: Door Switch, page 6-18.
See Test #3: Motor Circuit, page 6-8.
See Test #1: CCU Power Check, page 6-4.
Verify proper dryer installation.
Perform CCU L1 and L2 tests under Install Diagnostics.
See Test #4: Heat System, page 6-10
See Test #1: CCU Power Check, page 6-4.
See Test #4: Heat System, page 6-10
See Test #4: Heat System, page 6-10
See Test #4: Heat System, page 6-10
Increase drying times for one or more auto cycles.
Clean if necessary. Refer customer to "Use and Care Guide".
See Test #5: Moisture Sensor, page 6-15.
See Test #5a: Adj. Cust. Focused Dryness Check, page 6-16.