GE Range Error Code Cycle light 1s ON/1s OFF, Clean light OFF

The Cycle light 1s ON/1s OFF with Clean light OFF pattern on a GE range signals an RTD (Resistance Temperature Detector) error. The RTD, also commonly called the oven probe or oven temperature sensor, is a thermistor-based component mounted inside the oven cavity that continuously measures the oven's internal temperature and sends that data to the electronic control board. The control board uses this resistance signal to regulate the bake and broil elements. When the control detects a resistance reading outside the expected range, either too high or too low, it triggers this blinking fault pattern to alert the user and technician.

RTD sensors operate on a predictable resistance curve. At room temperature, a properly functioning GE oven RTD typically reads around 1080 to 1100 ohms. As temperature rises, resistance increases proportionally. A reading that is significantly out of range, an open circuit, or a short to ground indicates a failed sensor or a wiring fault between the sensor and the control board. The fault can also originate at the control board itself if it can no longer accurately process the incoming resistance signal.

The most common failure points are the RTD sensor itself, the wiring harness and connectors running from the sensor to the board, and less frequently the electronic control board. Physical damage from oven heat cycling, grease contamination at connectors, or a sensor that has simply reached the end of its service life are all typical root causes. Diagnosing this fault requires a multimeter to measure sensor resistance and inspect continuity through the associated wiring.