GE Dishwasher C8 Error Code

Detergent cup blocked. Here is what it means and how to clear it, easiest fix first.

Easy DIY fix

The detergent cup could not open fully. A tall pan, utensil or pot handle touching the cup is the usual cause; dried detergent or a misplaced pod can also jam it.

GE notes that not every code appears on every model; check your owner's manual.

Safety first: unplug the dishwasher (or switch off its breaker) before touching filters, hoses or panels. If you smell burning or gas, or see water near the outlet, stop and call a professional.

How to fix GE C8

Remove the obstruction
Move any dish, pan or utensil that touches the detergent cup. Close and latch the door and wait 30 seconds.
Clean the cup
Wipe old detergent residue out of the cup and off its lid. Seat pods or tablets fully in the cup, and use fresh, loose powder if you use powder.

When to call a technician

If the cup still won't open with nothing blocking it, schedule service.

Parts that commonly cause C8

detergent dispenser

Order parts by your exact model number so they fit.

Other GE dishwasher codes

Frequently asked questions

What does C8 mean on a GE dishwasher?

The detergent cup could not open fully. A tall pan, utensil or pot handle touching the cup is the usual cause; dried detergent or a misplaced pod can also jam it.

Can I fix GE C8 myself?

Usually, yes. Most C8 problems clear with simple checks you can do at home. Start with the first step above: remove the obstruction.

What if C8 keeps coming back?

A code that returns after a reset and the checks above usually means a part is wearing out. Note when C8 appears (which cycle, how often) and have your model number ready; it helps a technician bring the right part on the first visit.

Last reviewed 2026-10-19. Codes and steps can vary by model; check your owner's manual.

References