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 element stuck on or relay welded closed; Thermistor defective (reading incorrectly low, causing heater to run too long); Main PBA heater relay not shutting off properly
What actually causes this:
Either the heating element will not shut off or the temperature sensor is giving wrong readings, causing the water to overheat
First Thing to Check
Turn off the dishwasher at the circuit breaker immediately and do not use it until repaired
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 thermistor and heater relay test normal, replace Main PBA
This Error Applies To
Samsung DDW24M999U Series Dishwashers (2017) (2017–present)
Related Error Codes
The heating element is not warming the water properly
The dishwasher cannot pump the dirty water out
Water is leaking inside the base of the dishwasher
The touch panel and the control board are not communicating properly
The dishwasher's main computer board and display board cannot talk to each other
The motor controller board is not responding to the main computer
The water distribution vane that directs spray is not moving to the correct position
The dishwasher door is not fully closed