KitchenAid Range Error Code F5-E3

F5-E3 means the control board has detected either a loss of 120 VAC on the L1 line relative to ground, or a reversed polarity condition between L1 and neutral, identified through the Q19 sensing circuit. The fault points to the electrical supply coming into the range, not to a cooking component like a burner or oven element. Start by testing the wall receptacle with an outlet polarity tester or multimeter before inspecting anything inside the range.

No, operating the range with F5-E3 active is not advisable. This code indicates a potential wiring polarity reversal or a missing hot leg of power, both of which are electrical safety concerns. A reversed L1-N condition can create shock hazards and may damage the control board or other components. Resolve the supply-side wiring issue before resuming use.

Yes. If the circuit breaker controlling the L1 leg of the range's supply has partially tripped or if one leg of a double-pole breaker has failed, the range can lose 120 VAC on L1 while still receiving partial power. This is enough to trigger F5-E3. Check the breaker panel and confirm both poles of the range's dedicated breaker are fully reset and supplying correct voltage before inspecting the range itself.

Begin by checking that the wall receptacle supplying the range is properly polarized, meaning the hot wire is connected to the hot terminal and neutral to the neutral terminal. Use an outlet tester or a multimeter to verify polarity and confirm L1 voltage is present. If the outlet tests correctly, inspect the range's power cord and internal wiring harness for damaged or loose connections. If all supply-side checks pass and F5-E3 persists, the control board's Q19 circuit may have failed and the board will need replacement.

If the cause is a miswired receptacle, an electrician typically charges between $75 and $150 to correct the wiring, and no parts are needed. If the power cord is damaged, a replacement cord runs $20 to $60 in parts and is a manageable DIY repair. A failed control board is the most expensive scenario, with boards for KitchenAid ranges generally costing $150 to $350 in parts, plus labor if a technician installs it.