Frigidaire / Electrolux · Washer error code

E91Communication error (UI to main control)

Cross-checked Power off, standard tools

Unlock what this code means, its causes, tests and parts

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OnCall Tech is a reference tool for trained technicians and can make mistakes. Always disconnect power and confirm with the manufacturer's documentation before you work.

Related diagnostic guides

Guide · Washer

Washer won't start

Check power, control lock, door/lid, and any install-check requirement before suspecting boards. Many 'won't start' calls are lock modes or lid/door issues.

5 steps ~30 mineasy

Guide · Washer

Washer shows a code, stays locked or won't start after a power outage

Outages and surges can leave the control in a confused state mid-cycle. A full power reset clears most cases. If the code returns, read it and diagnose the part it names (lock, pump, valve); if the control is dead or erratic after a surge, the main control may be damaged.

5 steps ~20 mineasy