Error Code tC
The water temperature sensor isn't reading correctly
Moderate
Address soon - your appliance may not work properly
Also displayed as: No display (tC in recall)
What This Means
Thermistor is out of order (open circuit or shorted); Thermistor connector is disconnected; Main PBA is defective; Wiring harness damage between thermistor and Main PBA
What actually causes this:
The temperature sensor wire came loose or the sensor itself went bad
First Thing to Check
Turn off the dishwasher, wait 30 seconds, and restart — if the error persists, the sensor needs service
Parts Involved
How to Fix
- 1
1. Check the connections for the thermistor connector — reconnect if loose
- 2
2. Measure the voltage between both ends of the thermistor — Normal: 0.05V to 4.95V
- 3
3. Measure the resistance between both ends of the thermistor (remove connector before measuring). Reference table: 5 deg C = 125.814k ohms, 10 deg C = 98.36k ohms, 15 deg C = 77.48k ohms, 20 deg C = 61.477k ohms, 25 deg C = 49.12k ohms, 30 deg C = 39.51k ohms, 35 deg C = 31.985k ohms, 40 deg C = 26.053k ohms, 45 deg C = 21.347k ohms, 50 deg C = 17.59k ohms, 55 deg C = 14.573k ohms, 60 deg C = 12.136k ohms, 65 deg C = 10.157k ohms, 70 deg C = 8.541k ohms
- 4
4. If thermistor tests normal, replace Main PBA
Parts Commonly Needed for This Error
OEM part numbers confirmed by retailers
Other Error Codes for DW80M9550UG
The dishwasher's main computer and the display board can't talk to each other
The motor controller board inside the dishwasher stopped responding
Water is leaking inside the base of the dishwasher
Too much water detected inside the dishwasher
The water distribution motor that directs spray isn't working properly
The main wash pump that sprays water isn't working properly
The dishwasher door isn't fully closed
The automatic door-opening feature isn't working