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Error code · Dishwasher

GE Electronic Dishwasher Code C8: Detergent Cup Cannot Open Fully

On GE electronic dishwashers that display C-codes, such as the GSD2340VSA, C8 means the detergent cup cannot open all the way. The control tried to release detergent at the right moment and the cup lid was…

Low risk · DIY check OK
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Code
C8
Appliance
Dishwasher
Brand
GE
Warranty
30-day workmanship

What C8 means

On GE electronic dishwashers that display C-codes, such as the GSD2340VSA, C8 means the detergent cup cannot open all the way. The control tried to release detergent at the right moment and the cup lid was blocked or stuck. You may see C8 with a cycle that pauses or stops. The usual culprit is a tall dish, a utensil or a bit of residue sitting in the path of the lid, so a quick look inside is often enough.

Common causes of C8

  • Dish or utensil blocking the cup lid
  • Hardened detergent keeping the lid from opening
  • Door not fully latched when the cup tried to open
  • Cup latch or its actuator sticking
✓ One safe check you can try

1. Open the door and remove anything blocking the detergent cup. 2. Wipe away detergent residue around the lid. 3. Close the door and make sure it latches. 4. Wait about 30 seconds. 5. Start the cycle again with fresh detergent. 6. If the lid still binds, stop and book a visit.

! Why to stop there
  • If the cup is clear and C8 still shows, the release mechanism may be sticking.
  • We test the actuator that opens the lid before replacing it.
  • The price is in writing before we begin.
Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.
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Other Dishwasher codes

Smart Assist light redGE Dishwasher Smart Assist Light Red: A Potential Problem Was Detected Smart Assist light yellowGE Dishwasher Smart Assist Light Yellow: A Notification Is Waiting in SmartHQ Start light flashingGE Dishwasher Start Light Flashing: Door Opened or Cycle Interrupted Low Rinse AidGE Dishwasher Low Rinse Aid Indicator: Refill the Dispenser 999GE Dishwasher Code 999: Possible Leak, or a Control Reset C1GE Electronic Dishwasher Code C1: Drain Step Ran Past 2 Minutes C2GE Dishwasher Code C2: Total Draining Time Beyond 7 Minutes C3GE Electronic Dishwasher Code C3: Tub Will Not Drain at All
C8C8 questions
Why does my GE dishwasher show C8?

The detergent cup cannot open fully. A dish, a utensil or hardened detergent in the way is the most common reason, and it is a quick look inside the door to find out.

How do I clear C8?

Remove whatever is blocking the cup, close and latch the door, wait about 30 seconds and start the cycle again. Use fresh detergent so the lid is not stuck shut by old residue.

Can hard detergent cause C8?

Yes. Powder that has caked or gel that has dried around the lid can hold it shut. Wipe the area clean with a damp cloth before the next cycle, and store detergent where it stays dry.

Book a visit

Still unsure about C8?

A technician diagnoses it on site and gives you the price in writing before any work starts.

(713) 547-5545