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GE dishwasher C1 error code

GE dishwasher C1 indicates the unit did not drain within the expected time. The fine filter in the tub bottom, a clogged air gap on the sink, and a drain hose without a proper high loop are the usual causes on GDT665 and similar models. C1 after a new install often traces to a garbage disposal knockout still in place.

Reviewed August 2025 · sources below

Safe to keep using?

Stop using

Severe overheating requires stopping use until the cause is identified.

  • • Unplug the appliance before inspection.
  • • Turn off the water supply before disconnecting hoses.
  • • Do not continue using the appliance until the cause is identified.

5 product recalls may apply

Brand-level matches — verify your model.

Show
  • Viking Range Expands Dishwasher Recall Due to Fire Hazard

    Aug 2015 · Confirm your model

    Notice
  • GE Recalls Dishwashers Due to Fire Hazard

    Aug 2012 · Confirm your model

    Notice
  • Viking Range Recalls Dishwashers Due to Fire Hazard

    Apr 2012 · Confirm your model

    Notice
  • GE Recalls Dishwashers Due to Fire Hazard

    Oct 2010 · Confirm your model

    Notice
  • General Electric Recalls Dishwashers Due to Fire Hazard

    May 2007 · Confirm your model

    Notice

Next step

Still seeing C1?

Show a photo or describe the symptom. Answer a few safety-first questions and see whether a part is needed.

Diagnose my appliance

Free guided checks · No account required · Don’t open live electrical, gas, or refrigerant equipment

How to fix C1

  1. Remove the bottom rack and twist out the fine filter — rinse debris from the mesh and sump.
  2. If you have an air gap on the sink, remove the cap and clear any blockage inside.
  3. Verify the drain hose loops up under the sink before dropping to the disposal or drain tailpiece.
  4. Run a rinse cycle. Listen for the drain pump — humming without flow suggests a jammed impeller.
  5. Replace the drain pump only if the path is clear and water still pools after the cycle.

Call a pro when: Call a pro if water leaks from the door after filter service or the pump runs continuously.

What C1 means

Drain ran longer than 2 minutes — clean the air gap, disposer, and drain hose.

DIY Difficulty
4 /10MODERATE

DIY difficulty: 4/10 — this repair usually requires appliance disassembly.

Time: 30–60 minutes
Risk: Moderate
Skill: Intermediate
Tools: Screwdriver, Adjustable pliers, Flashlight, Work gloves, Socket set
Power disconnect requiredWater shutoff requiredDisassembly required

Likely causes

Most likelyUser-serviceable issue

Many codes resolve with cleaning, resetting, or reconnecting.

Check: Power-cycle the appliance and check for obvious blockages or loose connections.

Est. cost: $0–$0

PossibleFailed component

Wear or electrical failure of an internal part.

Check: If basic checks fail, the faulty component likely needs replacement.

Est. cost: $0–$75

Repair or Replace?

DIY repair

$26–$49

Professional repair

$191–$259

Comparable replacement

$659–$891

Our recommendation

REPAIR LIKELY MAKES SENSE

REPAIR LIKELY MAKES SENSE. Professional repair ($191–$259) is well below replacement cost.

Actual repair and replacement costs vary by model, location, labor rate, and condition.

Professional assistance recommended

This issue may be unsafe for DIY repair. Follow the safety guidance above and contact a qualified technician.

Questions about C1

What does C1 mean on GE dishwasher?

C1 is a drain fault — water was not fully removed after the cycle.

How do I reset GE C1?

Clear the filter and air gap, power off 5 minutes, then rerun a cycle.

Is C1 the pump?

Not always — filters and air gaps fix most C1 codes.

Can install cause C1?

Yes — missing disposal knockout or a flat drain hose is a frequent new-install issue.

GE C1 on specific models

Other GE Dishwasher codes

Prevent this problem next time

  • Follow manufacturer maintenance schedule
  • Address small issues before they worsen

Sources

Manufacturer meaning

Drain ran longer than 2 minutes — clean the air gap, disposer, and drain hose.

FixApplianceCode guidance

Start with basic checks for GE C1 before ordering parts.

Source type: Part database

Source: ModelPartFinder + FixApplianceCode editorial

Last reviewed: 2026-10-24

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