Written by
Hannah Ostrowski Appliance Care EditorPublished October 26, 2026
VERIFIED
Error codeE91
ApplianceDryer
Understanding E91
Communication has failed between the electronic control board and the interface board. The manual places E91 with the dryers covered by 137559700C (1302) and 137265000B (1202).
Where the fault may lie
Defective wiring
A defective electronic control board
A defective interface board
Board and wiring faults need a technician, and the console or housing should stay closed. Just note the code exactly as shown.
Other board codes
An incompatible protocol is E92, a machine configuration checksum error is E93, and E97 is a program mismatch.
Dryer repair in San Francisco
For board trouble on a Frigidaire dryer anywhere in the Bay Area, (415) 319-6371 is our number, and Frigidaire dryer repair describes the work. Bring up E91 with the model number and a brief list of what you tried.
Model compatibility: Frigidaire reuses codes across series and model years, so E91 may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
Plain language
What this code means
Communication error between control board and interface board.
Important safety warning. Do not attempt repairs involving electrical components, gas, water lines, refrigerant or sealed systems. Unplug the appliance if it is safe to reach the outlet, and leave internal diagnostics to a qualified technician.
Seeing this code on your Frigidaire appliance?
Book a specialist visit for a clear estimate and approval before any repair.
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You submit a request with your appliance model and symptom, we confirm an appointment window, and a technician performs an on-site diagnosis. You then receive a clear estimate and decide whether to proceed before any repair begins.
Yes. We provide an upfront estimate after diagnosis. No parts are ordered or installed until you approve the work, so there are no surprise charges.
Replacement parts are selected for the exact model and confirmed with you before ordering or installation.
Service areas are listed on the Locations page. Contact us with your ZIP code to confirm current coverage for your address.
Ready to get your Frigidaire appliance working again?
Book a repair online or call us — clear estimates and approval before any repair work begins.
