Frigidaire · Washer / dryer
E66 Heating element relay failure
What this code means
The relay controlling the water-heating element has failed.
Most likely causes
- Failed control board relay
What to try first
Not user-serviceable; needs control board replacement.
Safety note: if this code returns after one clean reset, stop resetting it — repeated lockouts usually mean a real fault that needs a licensed technician. Never bypass a safety switch.
FAQ
What does Frigidaire error code E66 mean?
Heating element relay failure. The relay controlling the water-heating element has failed.
Can I fix Frigidaire code E66 myself?
Usually not. Not user-serviceable; needs control board replacement. If the code returns after one reset, it needs a licensed technician.
What causes Frigidaire code E66?
The most common causes are: failed control board relay.
Other Frigidaire washer or dryer codes
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This information may contain errors or not apply to your exact model — always double-check it against your appliance's own manual before acting. If there's any chance of a gas, fire, electrical, carbon monoxide, or other safety hazard, stop and call a licensed professional or the appropriate agency (e.g. your gas utility) instead of relying on this page alone.