GE Dishwasher Error Code C3

C3 means the dishwasher attempted to drain but the control board never received confirmation that the drain solenoid activated properly. Specifically, the drain sensor switch did not close and send the expected electrical signal back to the control. The dishwasher stops the cycle when this happens to prevent damage.

No, you should not continue running the dishwasher while C3 is active. The cycle stops because the machine cannot confirm draining is working, and running it could result in standing water not being removed or potential overflow. Address the drain system issue before resuming normal use.

Repair costs depend on which component has failed. Replacing the drain sensor switch or drain solenoid typically involves parts costs in the range of $15 to $75, plus labor if a technician is hired. If the control board requires replacement, total costs can range from $150 to $350 or more depending on the model and service rates in your area.

Some homeowners comfortable with basic appliance repair can inspect and replace the drain sensor switch, which is the first recommended diagnostic step. Testing the solenoid and checking wiring connections are also within reach for experienced DIYers. However, if the control board is involved, professional diagnosis is recommended to avoid unnecessary parts replacement.

A reset may temporarily clear the code and allow the dishwasher to attempt a new cycle, but C3 will return if the underlying problem with the drain sensor switch or solenoid is not corrected. Resetting is only useful as a diagnostic step to confirm the fault is consistent, not as a permanent fix.