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GE Appliances Dishwasher Error Code C4

Reviewed by the ApplianceErrors Editorial Team · Verified against manufacturer service documentation · Last verified: June 10, 2026
⚠ High Severity 🔧🔧🔧 Advanced DIY

Wash motor failure — circulation pump not running

The most common cause of the C4 error on a GE Appliances dishwasher is circulation pump motor burned out (~55% of cases); start with: check for debris in pump.

💰 DIY cost: $100–$250 👨‍🔧 Pro cost: $250–$480 Save $150+ by doing it yourself
GE Appliances Dishwasher error code C4 on the display panel
How the C4 code appears on a GE Appliances dishwasher display

What Does Error Code C4 Mean on a GE Appliances Dishwasher?

Wash motor failure — circulation pump not running.

C4 fires when the control board commands the main circulation (wash) pump to run but detects no rotation or an out-of-range current draw during the wash phase. The board watches motor feedback and interprets a stalled, seized, or electrically open pump as a wash motor failure, halting the cycle. It is distinguished from drain-pump faults (C5) because C4 concerns the recirculation motor that sprays water through the arms, not the pump that expels water to the drain.

Models affected: GE built-in dishwashers with electronic control boards that report letter-number fault codes, including models such as GDF630PSMSS, GDT665SSNSS, and GDP630PYRFS
What owners report: Owners commonly report this code appearing mid-cycle with standing water and dishes left unwashed, sometimes after a piece of glass or a fruit pit lodges in the impeller. A quick win some report is clearing debris from the sump and power-cycling, which can clear a temporary jam before assuming the pump itself is dead.

What Causes Error Code C4?

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

  1. 1
    Circulation pump motor burned out 55% of cases
  2. 2
    Foreign object jammed in pump impeller 30% of cases
  3. 3
    Control board motor relay failure 15% of cases

How to Fix GE Appliances Dishwasher Error Code C4

🔧🔧🔧 Advanced DIY Est. time: 1–3 hours
⚡ Safety first: Unplug the appliance before opening any panels or touching internal components.
  1. 1

    Check for debris in pump

    Remove filter and reach into sump to clear any debris from impeller.

    ⚠️ Use gloves — broken glass may be present.
  2. 2

    Power cycle

    Unplug 5 minutes and restart.

  3. 3

    Replace circulation pump

    If motor is burned, full pump assembly replacement is needed.

    🔩 GE dishwasher circulation pump ($100–$250)

How to Reset Error Code C4

After clearing jams, unplug 1 minute and restart.

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

Full GE Appliances dishwasher reset guide → Enter diagnostic mode →

Did this guide fix your appliance?

When to Call a Professional

Circulation pump replacement requires significant disassembly. Professional service recommended.

Average professional repair cost for this issue: $250–$480

Related Error Codes

C5
Drain failure — dishwasher not draining
⚠ High Severity

Find Replacement Parts

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

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

External links — ApplianceErrors.com is not affiliated with these retailers.

More GE Appliances Dishwasher Error Codes

FL Flood switch activated — water in base tray PF Power failure — cycle interrupted by power outage OE Drain error — not draining properly C3 Control board failure C7 OWI sensor failure — optical water indicator fault HO Water not hot enough — incoming water temperature too low

Frequently Asked Questions

Can I keep using my GE Appliances Dishwasher when error C4 appears? +
It is not advisable. The dishwasher may still power on, but running it while C4 is active can worsen the motor fault or damage related parts. Treat it as a soon-as-possible repair.
What most commonly causes C4 on a GE Appliances Dishwasher? +
Across reported GE Appliances dishwasher repairs, the most frequent is circulation pump motor burned out (55% of cases), foreign object jammed in pump impeller (30%), then control board motor relay failure (15%). Check them in that order before replacing any parts.
C4 keeps coming back after a reset — what should I check next? +
A reset only clears the stored C4 fault; if it returns, the motor problem is still present. Move on to the physical checks — check for debris in pump, then power cycle — since the code will reappear until the root cause is resolved. This is an advanced repair involving deeper disassembly or electrical testing.
How much does it cost to fix GE Appliances Dishwasher error C4? +
A DIY repair typically runs $100–$250 in parts, versus $250–$480 for a professional service call, so handling it yourself saves around $150. Expect the work to take 1–3 hours.
Which GE Appliances Dishwasher models show error C4? +
C4 is documented on GE built-in dishwashers with electronic control boards that report letter-number fault codes, including models such as GDF630PSMSS, GDT665SSNSS, and GDP630PYRFS. Other units sharing the same control platform can display it too, so the fixes here generally transfer across the series.

Sources & References

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

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