GE dishwasher C7 code: water temperature sensor fault

The circuit for the water temperature sensor has failed. A power reset may clear it, but if it returns the sensor or wiring needs service.

Likely causes

Listed from most to least common.

1. Failed temperature sensor (thermistor)
2. Loose or damaged sensor wiring
3. Control board fault
4. Control glitch after a power surge

How to fix the C7 code

Unplug the dishwasher or switch it off at the breaker before removing any panel or filter.

1. 1

   Step 1: Reset the power

   Turn off the dishwasher's circuit breaker for 30 seconds, then turn it back on.

2. 2

   Step 2: Run a short cycle

   Start a short cycle and see if the code comes back. If it does, book a repair.

Parts that may need replacing

Check your model number on the label inside the door or on the back before ordering.

• GE dishwasher thermistorCheck prices

When to call a technician

If C7 returns after a power reset, call a technician. Testing the sensor and wiring means working near mains power under the dishwasher.

A typical repair for this code costs $150–$350 in the US, including parts and labor. Prices vary by area and model.

Models this applies to

• GE built-in dishwashers (GDT, GDF, GDP series)
• GE Profile dishwashers (PDT series)
• Café dishwashers (CDT series)

Codes can differ slightly between models. Your owner's manual is the final word and is available from GE support.

Common questions