Written by
Elena Marsh Appliance Care EditorPublished October 29, 2026
VERIFIED
Error codeF027
ApplianceRange
The manual treats F027 and F025 as one entry: the boards named user interface and relay never managed to start communicating. Kenmore gives it for the 790 freestanding family, along with Elite slide-ins 790.4131, 790.4255 and 790.5256.
Owner actions
Turn the power to the range off for half a minute, then back on. When F027 is displayed once more, cut electrical power and have the wiring harness between the two boards examined. Loose ends get reconnected; a damaged harness gets replaced.
A board installed shortly before the code appeared may not suit the range. Verify its part number against the model number.
No earlier replacement
Relay control board: replaced when the harness checks out.
User interface control board: replaced if the code goes on.
The slide-in range calls its interface board the oven user interface board.
F029: the touch panel side of the interface board.
F022: communication lost rather than never started.
Kenmore range repair in San Francisco
San Francisco and Bay Area owners who still see F027 after the reset can ring (415) 825-6393 for Kenmore range repair. Have the code, the model number and the result of the harness check ready.
Model compatibility: Kenmore reuses codes across series and model years, so F027 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 between the user interface board and the relay board cannot be initiated.
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 Kenmore appliance?
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Replacement parts are selected for the exact model and confirmed with you before ordering or installation.
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