E77Warning
Frigidaire Dryer E77 Error Code
The door switch is not closing properly or sending the correct signal.
Common causes
- Misaligned door strike
- Failed door switch
- Broken wire to switch
How to fix it
- Check door alignment and ensure it closes securely.
- Use multimeter to test switch continuity – should close when door is shut.
- Inspect wire harness for breaks near hinge area.
⚠ When to call a pro: If switch tests faulty, replace it; if wiring broken, repair or replace harness.
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Always unplug the appliance (and turn off the water for washers/dishwashers) before inspecting. These guides are for information only and are not a substitute for a professional repair.