Viking Dishwasher Error Code E:06

E:06 indicates an NTC thermistor fault, meaning the dishwasher's temperature sensor is producing a resistance reading that is outside the expected range, or is reading as a fully open or shorted circuit. The NTC thermistor is the sensor the dishwasher uses to monitor water temperature during the wash cycle. When this fault is detected, the control software skips the heating step and completes the cycle without heating the water.

The dishwasher will continue to run cycles with an E:06 fault active, so there is no immediate safety hazard in most cases. However, because the heating step is skipped, the water will not reach the temperatures needed for effective cleaning and sanitation. Running the dishwasher in this condition means dishes are not being properly sanitized, which is a hygiene concern, particularly for households with young children or immunocompromised individuals.

Start by inspecting the NTC thermistor and the cable harness connecting it to the control board. Look for damaged wiring, corrosion on connector pins, or loose connections. Use a multimeter to test the thermistor's resistance and check for continuity through the harness. If the sensor resistance is out of range or the harness has a break or short, those components should be repaired or replaced. If both test correctly, the control board may be the source of the fault.

A reset may temporarily clear the E:06 code, but the fault will return if the underlying problem with the NTC thermistor, wiring harness, or control board has not been repaired. Because the dishwasher skips the heating step when this fault is active, the unit will continue to underperform until the root cause is addressed. A reset is useful for confirming whether the fault is intermittent, but it is not a fix.

Repair costs depend on the failed component. Replacing the NTC thermistor is typically the least expensive fix, with parts generally ranging from around $15 to $60 and labor adding to that total. A wiring harness repair or replacement can range from $50 to $150 or more depending on the extent of the damage. If the control board is at fault, parts alone can range from $150 to $400 or higher, plus labor, making board replacement the most costly scenario.