Maytag Oven Error Code F1E2

The F1E2 error code on a Maytag oven indicates a Lower RTD Uncalibrated condition. RTD stands for Resistance Temperature Detector, a sensor that measures oven cavity temperature by correlating resistance values to specific temperatures. In a dual-oven or range configuration, the lower oven has its own dedicated RTD circuit. The main control board contains an analog-to-digital (A/D) converter that reads the resistance signal from the RTD and translates it into a usable temperature value. When the A/D converter for the lower oven circuit has not been properly calibrated or has lost its calibration data, the control board cannot accurately interpret temperature readings and locks up, triggering F1E2.

The core issue lies within the main control board itself rather than the RTD sensor. The calibration data for the A/D converter is stored internally on the control board. If that stored calibration becomes corrupted, is erased due to a power surge or voltage fluctuation, or was never properly written during the board's initialization, the board enters a locked state and displays this fault. Because the calibration is tied to the board's internal firmware and memory, there is no field recalibration procedure available to technicians.

The designated first diagnostic step is to disconnect power to the range entirely before attempting any repair. Once power is safely removed, the main control board must be replaced. There is no reset sequence or recalibration routine available at the user or technician level that will resolve a locked A/D calibration fault. The replacement board should come pre-calibrated from the factory, which restores normal lower oven temperature sensing and control operation.