Written by
Daniel Reyes Appliance SpecialistPublished October 20, 2026
Error codeF4
ApplianceRange
Quick answer
F4 is a shorted oven sensor (RTD) code shown only by some older Frigidaire ranges and ovens.
Model compatibility: Frigidaire reuses codes across series and model years, so F4 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
Shorted oven sensor (RTD), on older models only.
F4 belongs to an older series of Frigidaire ranges and ovens. It reports a shorted oven sensor, the RTD, and only some older models display it.
Why newer ovens never show it
On current models F3 covers an open or a shorted probe, so no F4 appears. On the older units, F3 means an open probe and F4 means a shorted one.
What a technician checks
Wiring between the oven control and the sensor is checked for a short, and the sensor is measured against the resistance table. If the reading is correct and the wiring is good, the control is replaced.
Codes next to F4
F3: the code newer ovens use for the same sensor circuit
Los Angeles owners can book Frigidaire range service by phone at (310) 861-3938. It helps to have the exact code, the model number and your earlier attempts on hand.
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.
