Error code · Whirlpool
E4 · Fault detected in the appliance
The appearance of the key symbol indicates a malfunction. Sensors have detected an error, and you should turn off the dryer and disconnect it from the power supply.
DryerCall Technician — Professional Help NeededFixLens verified
Safe first steps
- Turn off the dryer and disconnect it from the power supply.
- Inspect the control panel for any stuck buttons or visible damage.
- Reconnect the dryer to the power supply and turn it on to see if the error persists.
- If the error code E4 reappears, check for any loose wiring connections at the control panel.
- If the issue persists after checking connections, arrange a service visit — do not use the appliance.
When to stop
- Stop if you see smoke or smell burning — risk of fire.
Likely cause
The appearance of the key symbol indicates a malfunction. Sensors have detected an error, and you should turn off the dryer and disconnect it from the power supply.
Verification
Reviewed by: automated manual extraction
Verified against Whirlpool FFTE D 9X3B PL technical documentation
FixLens publishes its own structured technical logic verified against Whirlpool FFTE D 9X3B PL documentation · last verified April 23, 2026.
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