GE dishwasher code C4: filled twice after a power failure

What it means

After a power cut the dishwasher filled twice. The float may be stuck, or the drain or sump may be clogged.

What to try

Unplug the dishwasher before any step beyond a quick look, and turn the water off before touching hoses.

1. Touch Start, then Cancel or Reset.
2. Tap the float cover inside the tub so the float can move freely.
3. Check the sump at the bottom of the tub for debris.

Call a technician if

Resetting a GE dishwasher

GE says switching the power off for a minute or two can clear a fault. For several codes it suggests turning the breaker off for about 30 seconds, then pressing Reset. If that doesn’t work, the dishwasher may need service.

Sources