What HC means
The temperature inside the dishwasher is too hot.
Likely causes
- Temperature sensor or heater control fault
Safe first checks
- Switch the dishwasher off at the breaker for 30 seconds and back on.
- Empty it, fill the detergent drawer and start a Normal cycle.
When to stop
If the error happens again, request service.
Checked against: Samsung US: Samsung dishwasher is displaying an error code. Codes can differ by model and year, so confirm with your owner's manual.