Error code reference

Electrolux Oven Error Code F21

Communication problem between the User Interface Board and the Appliance Control Board: the User Interface Board is no longer able to detect communication from the Appliance Control Board.

SourceElectrolux Oven - Tech Sheet: Electronic Control & Board Referencep. 19

Electrolux codes Electrolux oven codes

Diagnostic procedure

The full F21 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

First diagnostic step

Check the communication harness from connector P20 (pins 1,2,7,9,11) on the Appliance Control Board to connector J2 on the User Interface Board.

SourceElectrolux Oven - Tech Sheet: Electronic Control & Board Referencep. 19

Unlock with pass

More steps, wiring diagram references, and verified part numbers

Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.

Unlock F21 procedure $9.95

Or subscribe: $29/month for all codes plus Max diagnostics, with 70 Max messages a day. Plus applicable tax.

Where this code is documented

1 manual in the MyPros+ library documents this code for Electrolux oven.

Models covered by the manuals that document this code

75,000+ service documents · 20,000+ error codes · 100+ brands

Get Started

$29/month · Cancel anytime · Or $9.95 3-day pass · Plus applicable tax

The full F21 procedure

Where this code is documented

Models covered by the manuals that document this code

Related Electrolux oven error codes