Error Code HC
The incoming water is too hot for safe operation
Critical
Stop using immediately - risk of damage or safety issue
Also displayed as: HC
What This Means
Heater is out of order; Thermistor is out of order; Hot water supply temperature exceeds 80 degrees C; Main PBA defect
What actually causes this:
Your home's water heater is set too high, sending overly hot water to the dishwasher
First Thing to Check
Check your water heater temperature setting — it should be 120 degrees F or lower
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 diagnostics
- 3
3. Check the operation of the heater — see Heater Check diagnostics
- 4
4. If water temperature is normal and thermistor is normal, replace Main PBA
Other Error Codes for DW80K5050UW
The dishwasher's control boards can't talk to each other
The dishwasher can't drain the water out
Too much water detected inside the dishwasher
The main control board and the motor controller can't communicate
Water is slowly leaking into the dishwasher when it shouldn't be
The dishwasher isn't getting enough water
The water temperature sensor isn't reading correctly
The heating element isn't warming the water