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GE Appliances Dishwasher Error Code C8

Reviewed by the ApplianceErrors Editorial Team · Verified against manufacturer service documentation · Last verified: June 10, 2026
✓ Low Severity 🔧 Easy DIY

Detergent dispenser cup blocked from opening fully

💰 DIY cost: $0–$80 👨‍🔧 Pro cost: $120–$240 Save $120+ by doing it yourself
GE Appliances Dishwasher error code C8 on the display panel
How the C8 code appears on a GE Appliances dishwasher display

What Does Error Code C8 Mean on a GE Appliances Dishwasher?

Detergent dispenser cup blocked from opening fully.

The detergent cup could not open completely during the cycle, usually because an item in the lower rack is leaning against it. The wash runs without detergent being released at the right time.

What Causes Error Code C8?

Here are the most common causes in order of frequency. Start with the most likely cause before moving to the next:

  1. 1
    Tall item or pan blocking the dispenser door 55% of cases
  2. 2
    Silverware or utensil fallen against the cup 25% of cases
  3. 3
    Dispenser door spring or wax motor sticking 20% of cases

How to Fix GE Appliances Dishwasher Error Code C8

🔧 Easy DIY Est. time: 10–20 min
⚡ Safety first: Unplug the appliance before opening any panels or touching internal components.
  1. 1

    Remove the obstruction

    Take out the silverware, pan, or tall item blocking the dispenser, then close and latch the door.

  2. 2

    Wait for the cup to cycle

    Close the door and wait ~30 seconds for the cup to open.

  3. 3

    Inspect the dispenser door

    If nothing blocks it, the door spring or wax motor may be sticking.

    🔩 GE dishwasher detergent dispenser ($30–$80)

How to Reset Error Code C8

Clear the obstruction, latch the door, and wait 30 seconds for the cup to open.

Note: If the error returns after resetting, the underlying issue has not been resolved. Work through the fix steps above.

Did this guide fix your appliance?

When to Call a Professional

If nothing blocks the cup but C8 persists, replace the detergent dispenser assembly.

Average professional repair cost for this issue: $120–$240

Find Replacement Parts

Use these links to find the exact replacement parts for your GE Appliances Dishwasher:

🔩
Search PartSelect
GE Appliances Dishwasher repair parts
🔧
Search RepairClinic
Step-by-step video guides

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More GE Appliances Dishwasher Error Codes

C5 Drain failure — dishwasher not draining FL Flood switch activated — water in base tray C4 Wash motor failure — circulation pump not running PF Power failure — cycle interrupted by power outage OE Drain error — not draining properly C3 Control board failure

Frequently Asked Questions

Can I keep using my GE Appliances Dishwasher when error C8 appears? +
Usually yes — C8 is a low-severity dispenser notice that rarely stops the dishwasher from working, but clearing the underlying cause prevents it from escalating.
What most commonly causes C8 on a GE Appliances Dishwasher? +
Across reported GE Appliances dishwasher repairs, the most frequent is tall item or pan blocking the dispenser door (55% of cases), silverware or utensil fallen against the cup (25%), then dispenser door spring or wax motor sticking (20%). Check them in that order before replacing any parts.
C8 keeps coming back after a reset — what should I check next? +
A reset only clears the stored C8 fault; if it returns, the dispenser problem is still present. Move on to the physical checks — remove the obstruction, then wait for the cup to cycle — since the code will reappear until the root cause is resolved. This is a beginner-friendly job needing only basic hand tools.
How much does it cost to fix GE Appliances Dishwasher error C8? +
A DIY repair typically runs $0–$80 in parts, versus $120–$240 for a professional service call, so handling it yourself saves around $120. Expect the work to take about 10–20 minutes.

Sources & References

Content verified against manufacturer service documentation. Last verified: June 10, 2026.

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