GE Dishwasher Error Code C7 — Turbidity Sensor Error
What this means
The C7 error means the turbidity sensor (which measures how dirty the water is) has failed. This sensor helps the dishwasher determine when dishes are clean. Without it, the dishwasher may run cycles that are too short or too long.
Step-by-step fix
2 stepsPower cycle the dishwasher
Turn off the breaker for 5 minutes and turn it back on. Run a normal cycle.
Sensor glitches can sometimes be cleared with a full power reset.
Clean the sensor area
The turbidity sensor is in the sump area at the bottom of the dishwasher. Remove the filter assembly and clean around the sensor. Grease and food film can coat the sensor lens.
Use a soft cloth with a bit of vinegar to clean the sensor lens gently.
When to call a professional
If cleaning doesn't resolve it, the sensor itself needs replacement. This is inside the sump assembly.
Related error codes
Information compiled from manufacturer service manuals, official troubleshooting documentation, and appliance repair industry resources. This guide is for informational purposes only — always consult a qualified technician for complex repairs.
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