GE dishwasher error code

C8

Detergent cup blocked

Something is keeping the detergent cup from opening all the way.

Try these free fixes first

Unplug the dishwasher before opening any panel.

  1. Move tall dishes, pans or utensils that block the detergent cup door.
  2. Make sure nothing is stuck on the cup lid.
  3. Close and latch the door, then wait about 30 seconds before restarting.

Still showing C8?

If the cup is unobstructed and still won't open, the detergent dispenser assembly may need replacement by a technician.

Detergent dispenserCheck that the part matches your exact model number (usually on a sticker inside the door or on the back).Find the part
Prefer a pro?Compare quotes from local appliance repair services.Get repair quotes (soon)

Questions people ask

What does C8 mean on a GE dishwasher?

C8 on a GE dishwasher means: detergent cup blocked. Something is keeping the detergent cup from opening all the way.

How do I fix GE dishwasher error C8?

Move tall dishes, pans or utensils that block the detergent cup door. Make sure nothing is stuck on the cup lid. Close and latch the door, then wait about 30 seconds before restarting.

When should I call a repair technician?

If the cup is unobstructed and still won't open, the detergent dispenser assembly may need replacement by a technician.

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Source: GE official support · Reviewed 2026-10-01