Viking Dishwasher Wash Water Temperature Sensor Fault
Viking dishwashers use a water temperature sensor (NTC thermistor) to monitor wash water temperature throughout the cycle. The control board uses this sensor reading to determine when the water has reached the correct temperature to proceed through wash, rinse, and sanitize phases. A failed temperature sensor sends an incorrect reading to the control board — either causing the cycle to stall at the heating phase (sensor reads cold when water is hot) or to skip heating (sensor reads hot when water is cold). Temperature sensor failure can cause inadequate cleaning, poor sanitization, and cycle interruptions. The sensor is typically located in the sump area of the dishwasher.
What Causes the Wash Water Temperature Sensor Fault Error?
The negative temperature coefficient thermistor element has drifted out of specification or failed, sending incorrect temperature values to the control board.
Moisture and detergent in the dishwasher environment can corrode the sensor connector over time, breaking the signal circuit.
Basic Steps Before Calling a Technician
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01Check for Error Code Display
Viking dishwashers may display a specific error code for temperature sensor faults. Note the exact code and contact us — the code identifies the specific sensor circuit that has failed.
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02Verify Inlet Water Temperature
Run the kitchen hot water tap until it reaches maximum temperature before starting the dishwasher. The inlet water should be at least 120°F. If inlet water is cold, the sensor may be correctly reporting that water is not reaching temperature.
When to Call a Technician
Temperature sensor diagnosis requires testing the thermistor resistance at a known temperature reference point. Our technician replaces the failed sensor with a genuine Viking OEM component to restore correct wash cycle operation.
Book a Technician →Estimated range for parts and labor. Your technician provides an exact upfront quote before any work begins. Diagnostic fee is applied toward the repair cost.
- Genuine Viking OEM parts only
- 30-day parts & labor warranty
- Upfront pricing — no hidden fees
- Same-day service available
Other Viking Dishwasher Error Codes
Viking Wash Water Temperature Sensor Fault Error Code — Frequently Asked Questions
Common questions about Viking appliance repair answered by our certified technicians.
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Cleaning performance will be significantly degraded. Without accurate temperature data, the control board cannot ensure water reaches sanitizing temperatures (150°F+), may stall the cycle, or may advance the cycle without adequate heating. Dishes may not be sanitized and cleaning results will be inconsistent.
Fix Your Viking Wash Water Temperature Sensor Fault Error Code Today
Schedule online or call us directly. We offer same-day and next-day Viking appliance repair appointments across all six service areas, Monday through Saturday.
- Genuine Viking OEM parts on every repair
- Same-day and next-day availability
- Upfront pricing — no hidden fees
- 30-day parts & labor warranty
- Certified, background-checked technicians