Kenmore Dishwasher Error Code tE

The tE code stands for thermal error and means the dishwasher's control board has detected an abnormal resistance output from the thermistor, which is the water temperature sensor. The control board monitors this sensor throughout each cycle, and when the resistance reading falls outside the expected range, the tE fault is triggered. The issue can stem from the thermistor itself, its wiring connections, or in some cases the control board.

It is not recommended to continue running the dishwasher while the tE error is active. A faulty thermistor means the appliance cannot accurately monitor water temperature, which could result in inadequate cleaning, improper heating, or unexpected shutdowns mid-cycle. Resolving the fault before continued use is the safer approach.

Resetting the dishwasher may temporarily clear the tE code, but if the underlying wiring or thermistor issue has not been corrected, the error will return during the next cycle. A reset is useful for confirming whether the fault is intermittent or persistent, but it is not a substitute for diagnosing and repairing the root cause.

A knowledgeable DIYer can often resolve this error by inspecting and reseating the thermistor wiring connections and testing the thermistor's resistance with a multimeter. If the thermistor has failed, replacing it is typically a straightforward repair. However, if the control board is the root cause, that repair is more involved and may warrant professional service.

If the fix is simply reseating a loose wiring connection, there may be no parts cost at all. Replacing a failed thermistor is generally an inexpensive repair, with parts typically ranging from $10 to $40 and labor costs varying by market and service provider. A control board replacement is significantly more expensive, often ranging from $100 to $300 or more including parts and labor.