Dishwasher displays C7; may stop mid-cycle or skip heating and drying functions.

Safety: Disconnect power at the breaker before accessing the sump or control board.

Steps:

• 1. Locate the thermistor: On many GE Profile dishwashers, the thermistor is mounted in the sump or side of the tub bottom. Consult your model's parts diagram.
• 2. Inspect wiring: Check the harness connector at the thermistor for corrosion, moisture, or loose pins. Reseat the connector firmly.
• 3. Check for physical damage: Look for cracks or deformation of the sensor body.
• 4. Test resistance (advanced): With the sensor disconnected and at room temperature, measure resistance with a multimeter. Compare to GE specifications (commonly in the tens of kΩ range). An open or near-zero reading indicates failure.
• 5. Replace thermistor if faulty: Swap in a GE-approved temperature sensor for your exact model. Ensure the seal or grommet is properly seated to prevent leaks.

If a new thermistor does not clear C7, the main control board may not be reading the sensor correctly and could require replacement by a professional.