Written by
Elena Navarro Appliance Repair Content SpecialistPublished September 11, 2026Updated October 20, 2026
Error codeF20
ApplianceRange
Quick answer
F20 on a legacy Dacor ER range means a loose or defective data cable, or a defective control panel circuit board.
Model compatibility: Dacor reuses codes across series and model years, so F20 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
Data cable between relay board and control panel loose or defective, or defective control panel circuit board.
F20 on a Dacor range has two causes in the Technical Manual. One is a data cable between the relay board and the control panel that is loose or defective. The other is a defective control panel circuit board. The list applies to the legacy ER30D, ER36D and ER48D ranges.
The manual’s remedies
For the cable, the manual says to tighten the connections and replace the cable if necessary. For the circuit board, it says to replace the control panel circuit board. Both are technician tasks. As an owner, first check that the main power switch is on and the control panel is not locked.
Compare with
F2: a general fault location for panel and relay board communication.
F32: another loose or defective data cable entry, paired with a membrane.
If F20 stays on a Dacor range in Los Angeles, call (310) 742-1907 for Dacor range repair. Bring up the code, the model number and any checks you made when you call.
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 Dacor appliance?
Book a specialist visit for a clear estimate and approval before any repair.
