GE Dryer Error Code tS

The tS code on a GE dryer stands for thermistor short. It means the control board has detected that the thermistor signal voltage has gone above 4.8 VDC for more than 5 seconds, which indicates a short circuit in the temperature sensor circuit. The dryer will not operate normally until this condition is resolved. The thermistor, its wiring, and the PCB all need to be inspected.

It is not recommended to operate the dryer while the tS code is active. The thermistor is responsible for monitoring drum temperature, and a shorted thermistor means the control board cannot accurately track heat levels. Running the dryer without a functioning temperature sensor could lead to overheating or damage to clothing and internal components.

Repair costs vary depending on which component has failed. A replacement thermistor is generally an inexpensive part, often in the range of $15 to $40, while professional labor for diagnosis and replacement typically adds $75 to $150. If the control board is the root cause, parts alone can range from $100 to $300 or more depending on the model, with additional labor costs on top.

A reset may temporarily clear the tS code, but the error will return if the underlying fault is not repaired. Since the code triggers when voltage exceeds 4.8 VDC for more than 5 seconds, any short circuit still present in the thermistor or wiring will cause the code to reappear quickly. A proper repair of the faulty component is required for a lasting fix.

Start by inspecting the wiring harness between the thermistor and the PCB for any signs of damage, pinching, or melting. Next, test the thermistor with a multimeter to check whether its resistance is within a normal range at room temperature. If the thermistor has failed internally, it will need to be replaced. If wiring and the thermistor both test correctly, the PCB should be evaluated as the source of the fault.