Kenmore Washer Error Code tH

The tH code on a Kenmore washer indicates a thermistor error, meaning the water temperature sensor has been detected as faulty by the main control board. The thermistor monitors water temperature during the wash cycle and sends resistance-based readings to the control board. When those readings fall outside the expected range or are absent entirely, the machine stops and displays tH. The washer should be unplugged and a technician should be called to diagnose and repair the issue.

No, you should not continue using the washer while the tH code is active. The thermistor is responsible for monitoring water temperature, and a faulty sensor means the machine cannot properly regulate heat during the wash cycle. This could lead to incorrect water temperatures that may damage fabrics or allow the washer to operate outside its safe parameters. Unplug the unit until the fault is resolved.

Repair costs vary depending on the actual cause of the fault. Replacing a thermistor sensor is generally one of the less expensive washer repairs, with parts typically ranging from around $15 to $60 and labor adding to that total. If the fault involves wiring harness replacement or a failed control board, costs can range considerably higher, potentially from $150 to $350 or more depending on parts and local labor rates. A technician diagnosis will clarify exactly which component needs attention.

The recommended first step for the tH code is to unplug the washer and call for professional service. Properly diagnosing this error requires a multimeter to test thermistor resistance and continuity testing of the wiring harness, which involves working near electrical components. While a knowledgeable DIYer may be comfortable with these tests on a fully unplugged unit, the repair is generally best handled by a qualified technician.

Unplugging the washer and plugging it back in may temporarily clear the code, but if the underlying thermistor fault is still present, the tH error will return when the machine runs its next cycle. A reset does not repair a faulty sensor, corroded wiring, or a damaged harness. The root cause needs to be diagnosed and corrected for the code to stay cleared.