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GE · Dishwasher · C8

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The detergent cup is blocked from opening fully.

Diagnostic nodeC8MANUAL-LOOKUP
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Use this as a diagnostic branchConfirm the exact model manual before ordering parts or opening the appliance.

Coverage: Selected GE dishwashers with detergent-cup monitoring.

GUIDANCE

Find the correct manual for error C8

Locate the full model label before searching the manufacturer manual. The published coverage note for this entry is: Selected GE dishwashers with detergent-cup monitoring.

Safe sequence

  1. 1Turn off the dishwasher before rearranging sharp items.
  2. 2Remove cookware or utensils that touch the detergent cup.
  3. 3Close and latch the door, then run a short test cycle.

Stop and get qualified help when

  • The dispenser is cracked or mechanically jammed
  • C8 returns with the cup completely unobstructed
Primary sourceGE Appliances — dishwasher fault codes ↗Verified 2026-07-17 · manufacturer