GE Range Error Code Cycle light 2 flashes

The Cycle light 2 flashes error on a GE range indicates a fault with the RTD, or Resistance Temperature Detector, which is the oven temperature probe used by the control board to monitor oven cavity temperature. The RTD is a passive sensor whose electrical resistance changes predictably with temperature. The control board continuously reads this resistance to determine actual oven temperature. When the board detects a resistance value that falls outside its expected range, either too high, too low, or completely open, it flags the fault and displays the error via 2 flashes on the cycle indicator light.

The most common root causes are a failed RTD probe, damaged wiring between the probe and the control board, or a poor connection at either end of the circuit. The RTD probe itself can fail internally, producing an open circuit or a dramatically incorrect resistance reading. The wiring harness running from the probe, which mounts inside the oven cavity, back to the control board passes through areas exposed to heat cycling and mechanical stress, making it vulnerable to breaks, shorts, or connector corrosion over time.

Diagnosing this fault begins with checking the resistance of the RTD probe directly at the probe terminals. A properly functioning RTD typically reads approximately 1080 to 1100 ohms at room temperature. Readings significantly above or below this range, or an open circuit reading, confirm probe failure. If probe resistance checks out, the technician should inspect the wiring harness and connectors for damage, corrosion, or loose terminals before suspecting the control board itself.