Error Code tC
The water temperature sensor isn't reading correctly
Moderate
Address soon - your appliance may not work properly
Also displayed as: tC (no display during operation)
What This Means
Thermistor is out of order; Thermistor connector disconnected; Thermistor wiring harness damaged; Main PBA defect
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 keep coming out cold or the error persists, 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: 0.2V to 4.5V
- 3
3. Measure resistance between both ends of thermistor (disconnect first). Reference: at 25 degrees C (77 degrees F) = 49.12 kOhm, at 50 degrees C (122 degrees F) = 17.60 kOhm
- 4
4. If thermistor tests normal, replace Main PBA
Other Error Codes for DW80K5050UW
The dishwasher's control boards can't talk to each other
The dishwasher can't drain the water out
Too much water detected inside the dishwasher
The main control board and the motor controller can't communicate
Water is slowly leaking into the dishwasher when it shouldn't be
The dishwasher isn't getting enough water
The incoming water is too hot for safe operation
The heating element isn't warming the water