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
What This Means
Thermistor is defective (open or short circuit); Thermistor connector is disconnected; Main PBA is defective
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 dishes come out cold after cycles, it needs service
Parts Involved
How to Fix
- 1
1. Check and reconnect the thermistor connector
- 2
2. Measure voltage between both ends of the thermistor — normal: 0.05V to 4.95V
- 3
3. Measure resistance between both ends of the thermistor (disconnect connector first) — reference table: 5C=125.814k, 10C=98.36k, 15C=77.48k, 20C=61.477k, 25C=49.12k, 30C=39.51k, 35C=31.985k, 40C=26.053k, 45C=21.347k, 50C=17.59k, 55C=14.573k, 60C=12.136k, 65C=10.157k, 70C=8.541k
- 4
4. If thermistor 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
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
The automatic door-opening feature isn't working