Error Code tC
The water temperature sensor is not reading correctly
Moderate
Address soon - your appliance may not work properly
Also displayed as: tC (no display during normal operation)
What This Means
Thermistor terminal disconnected; Thermistor defective (open circuit or shorted); Main PBA defect; 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 comes back, 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 range: 0.05V to 4.95V
- 3
3. Measure resistance between both ends of thermistor (disconnect connector first). Reference table: 5C=125.814k ohms, 10C=98.36k ohms, 15C=77.48k ohms, 20C=61.477k ohms, 25C=49.12k ohms, 30C=39.51k ohms, 35C=31.985k ohms, 40C=26.053k ohms, 45C=21.347k ohms, 50C=17.59k ohms, 55C=14.573k ohms, 60C=12.136k ohms, 65C=10.157k ohms, 70C=8.541k ohms
- 4
4. If thermistor tests normal, replace Main PBA
Other Error Codes for DDW24T998US
The dishwasher cannot pump the dirty water out
The water inside the dishwasher got dangerously hot
The touch panel and the control board are not communicating properly
The drying fan is not spinning fast enough
A control panel button appears to be stuck or held down
The main wash pump that sprays water is not working properly
The heating element is not warming the water properly
Water is leaking inside the base of the dishwasher