Error Code HC
The water inside the dishwasher has gotten dangerously hot
Critical
Stop using immediately - risk of damage or safety issue
Also displayed as: HC
What This Means
The heater is out of order (stuck on); The thermistor is out of order (reading too low, causing heater to overheat)
What actually causes this:
The temperature sensor is misreading, causing the heater to run too long, or the heater relay is stuck on
First Thing to Check
Turn off the dishwasher and let it cool — do not open the door immediately as steam could escape
Parts Involved
How to Fix
- 1
1. Check the hot water connections for the inlet valve
- 2
2. Check the operation of the thermistor — see Temperature Sensor Check
- 3
3. Measure thermistor resistance per the resistance table
- 4
4. Check the heater relay — ensure it disengages properly
- 5
5. If thermistor and heater test normal, replace Main PBA
Other Error Codes for DW80K7050US
The dishwasher has repeatedly failed to drain the water
The heating element isn't warming the water properly
The control panel's buttons can't communicate with the control board
Water is leaking inside the base of the dishwasher
Too much water detected inside the dishwasher
The dishwasher isn't getting enough water
The dishwasher is having trouble draining water out
The water distribution motor can't find its correct position