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
This Error Applies To
Samsung DW80R9950U Series Dishwashers (2023) (2023–present)
Related Error Codes
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The dishwasher tried multiple times to drain but keeps failing
The water distribution motor that directs spray isn't working properly
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The water got dangerously hot inside the dishwasher