Error Code HC1
The heating element isn't warming the water
Moderate
Address soon - your appliance may not work properly
Also displayed as: No display
What This Means
Heater element is defective (burned out or open circuit); Heater is improperly connected; Heater relay on Main PBA is defective
What actually causes this:
The heating element burned out or a wire connection came loose
First Thing to Check
Check if your dishes feel cold after a cycle — if so, the heater has failed
Parts Involved
How to Fix
- 1
1. Check and reconnect the heater connectors
- 2
2. Measure heater resistance between both ends — normal: approx. 12.14-14.16 ohms (disconnect circuit breaker or power cable first)
- 3
3. Check heater relay connections on Main PBA — measure voltage between Red wire of heater relay on base and Red wire of CN101 connector — normal: 110-120V while operating
- 4
4. If heater tests normal, replace Main PBA
Other Error Codes for DW80R9950UG
Water is getting into the dishwasher when it shouldn't be
The main control board and the motor control board can't communicate
The dishwasher tried multiple times to drain but keeps failing
The water temperature sensor isn't reading correctly
A control panel button appears to be stuck
The touch panel and the control board can't communicate
The main control board and the display board can't talk to each other
Water is leaking inside the base of the dishwasher