Viking Dishwasher Error Code POTS PANS + LED4

This code indicates a Temperature Sensor Disconnect fault, meaning the control board is detecting an open circuit in the temperature sensor loop. The dishwasher cannot read water temperature, which prevents the cycle from operating correctly. The fault points to either a disconnected wiring connector, a broken wire, or a failed temperature sensor.

You should not continue running the dishwasher with this fault active. Without a functioning temperature sensor, the control board cannot properly regulate water heating, which could result in either inadequate cleaning or uncontrolled heating conditions. Resolve the sensor fault before resuming normal use.

A reset may temporarily clear the error code display, but the fault will return as soon as the control board checks the temperature sensor circuit again and finds it open. The underlying cause, whether a disconnected connector, broken wire, or failed sensor, must be corrected for the error to clear permanently.

A knowledgeable DIYer can address this fault by inspecting and reseating the sensor wiring connectors and testing the sensor with a multimeter. If the sensor reads open and the wiring is intact, replacing the temperature sensor is a straightforward repair. If the wiring harness is damaged or the control board is suspected, professional service is recommended.

If only a connector needs reseating or cleaning, there may be no parts cost involved. A replacement temperature sensor typically falls in the range of $20 to $60 for parts. If a wiring harness or control board replacement is required, total repair costs including labor could range from $150 to $400 or more depending on your location and service provider.