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Error code reference
Frigidaire Dryer Error Code EF4
Check Exhaust Warning due to high vent restriction, defective High Limit Thermostat, Inlet Control Thermistor, or Electronic Control Board.
SourceFrigidaire Dryer - Tech Sheet: Error Codes & Diagnosticsp. 2
Diagnostic procedure
The full EF4 procedure
Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.
MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Check vent restrictions and resistance values of High Limit thermostat and Inlet Control Thermistor.
SourceFrigidaire Dryer - Tech Sheet: Error Codes & Diagnosticsp. 2
More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
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Where this code is documented
1 manual in the MyPros+ library documents this code for Frigidaire dryer.
Models covered by the manuals that document this code
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