Cove Dishwasher Error Code 100147

Error code 100147 means the Main Control Module is not receiving a valid signal from one or both NTC temperature sensors located inside the wash pump. The MCM relies on these sensors to monitor water temperature throughout the wash cycle. When the signal falls outside acceptable limits, the dishwasher logs this fault and may halt the cycle. The cause can range from a loose connector to a failed sensor or mineral scale buildup.

It is not recommended to continue running the dishwasher while this fault is active. The MCM uses the NTC sensor data to control water temperature, and operating without reliable temperature feedback could result in improper heating or cycle interruptions. Resolve the fault before resuming regular use to avoid potential damage to dishes, the heating system, or other pump components.

A reset may temporarily clear the error code, but if the underlying problem with the NTC sensor or its wiring is still present, the code will return once the dishwasher attempts to read temperature data again. A reset is useful for confirming whether the fault is intermittent, but it is not a permanent fix. The sensor connections, sensor resistance, and pump condition should all be inspected to address the root cause.

Some causes of this error are DIY-friendly. Start by checking that all wiring connectors at the wash pump are fully seated and free of corrosion. If you live in a hard water area, running a descaling cycle or manually cleaning the pump interior may resolve the issue. Testing the NTC sensor resistance with a multimeter requires some technical comfort, but is straightforward for experienced DIYers. Replacing the sensor or wiring harness is more involved and may warrant a professional technician.

Repair costs depend on the root cause. If the fix is simply reseating a connector or descaling the pump, out-of-pocket costs are minimal. Replacing an NTC temperature sensor typically runs in the range of $30 to $80 for the part, plus labor if a technician is involved. A full wiring harness or MCM replacement would cost considerably more, generally in the range of $150 to $400 or higher including parts and labor.