Viking Dishwasher Error Code Temperature Sensor Disconnect

This error means the control board is detecting an open or broken circuit in the water temperature sensor loop. The sensor is responsible for reporting water temperature during wash and dry cycles, and without a valid signal, the dishwasher will not operate normally. The fault points to either a disconnected wiring harness, a broken wire, or a failed sensor.

A reset may temporarily clear the error display, but the fault will return immediately if the underlying open circuit has not been repaired. The control board continuously monitors the sensor circuit, so any disconnection or failed component will trigger the code again as soon as the dishwasher attempts to run a cycle. A proper repair of the wiring or sensor is required to permanently clear this fault.

If only a wiring connection needs to be reseated, there may be no parts cost at all. A replacement temperature sensor typically costs between $20 and $75 depending on the specific part. If a professional repair technician is needed, expect total costs including labor to range from $100 to $250 or more, depending on your location and the extent of the repair required.

In many cases, yes. Start by checking that the sensor's wiring connector is fully seated at both the sensor and the control board. If connections are secure, use a multimeter to test the sensor for continuity across its terminals. A broken wire or failed sensor can often be replaced by a confident DIYer comfortable working with basic electrical components and wiring.

It is not recommended to continue using the dishwasher with this error active. Without a functioning temperature sensor, the control board cannot confirm that water is being heated to the correct temperature, which can result in inadequate cleaning and sanitization. Running the appliance in a faulted state may also cause additional strain on related components.