Whirlpool Cooktop Error Code F1-E2

The F1-E2 error code on a Whirlpool cooktop indicates that the lower RTD (Resistance Temperature Detector) is uncalibrated, which the control board classifies as an internal oven control failure. The RTD is a temperature-sensing probe whose resistance changes predictably with temperature. When the oven control cannot read a valid or expected resistance value from the lower RTD circuit, it flags the calibration as failed and triggers F1-E2. This is distinct from a straightforward sensor open or short; the control board is specifically reporting that the RTD's output falls outside the calibrated reference range stored in its memory.

Because the fault is categorized as an internal oven control failure, the root cause most often lies within the oven control board itself rather than the RTD probe or its wiring. The control's onboard memory or calibration data may have become corrupted, or an internal component on the board may have degraded to the point where it can no longer accurately interpret RTD resistance signals. In some cases, a marginal or intermittent connection between the RTD and the control board can produce readings that mimic an uncalibrated state, so wiring and connectors should still be inspected before condemning the board.

Diagnosing this fault begins by entering Diagnostic Mode using the CANCEL, CANCEL, START key sequence and confirming the F1-E2 code appears under the Faults menu. If the fault is confirmed there, the recommended corrective action is to disconnect power to the unit and replace the oven control board. Simply cycling power or attempting a software reset is unlikely to resolve a confirmed calibration failure, as the issue resides in the control hardware or its stored calibration data.