Error Code HC
The water inside the dishwasher got dangerously hot
Critical
Stop using immediately - risk of damage or safety issue
Also displayed as: HC
What This Means
Heater is out of order (stuck on); Thermistor is out of order (reading incorrectly low, causing heater to run too long); Heater relay stuck closed on Main PBA
What actually causes this:
The water temperature sensor or the heating element control failed, causing the water to overheat
First Thing to Check
Turn off the dishwasher at the circuit breaker immediately and let it cool down completely
Parts Involved
How to Fix
- 1
1. Check the operation of the thermistor — see tC check code procedure
- 2
2. Check the heater relay — see HC1 check code procedure
- 3
3. If both thermistor and heater test normal, replace Main PBA
Other Error Codes for DW80M9960US
The dishwasher's main computer and the display board can't talk to each other
The motor controller board inside the dishwasher stopped responding
Water is leaking inside the base of the dishwasher
Too much water detected inside the dishwasher
The water distribution motor that directs spray isn't working properly
The main wash pump that sprays water isn't working properly
The dishwasher door isn't fully closed
The automatic door-opening feature isn't working