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Source-backed error-code guide

Reviewed

GE Appliances Dishwasher C1 Error Code

GE lists C1 as pump-out during drain exceeding two minutes and says to clean the air gap if one is present.

Applies to GE Appliances dishwasher

What the appliance detected

Detected condition

The pump-out during drain exceeded the documented time.

What may contribute

Possible causes

  • An air gap may be restricted on installations that use one.
  • The dishwasher may be having a drain-flow problem.
  • A continuing condition may require service.

Start conservatively

Safe preliminary checks

Work in order and stop whenever a step is not supported by the documentation for your model.

  1. Record the code and setup

    • Write down C1 and the dishwasher model number.
    • Check whether the sink installation has an air gap.

  2. Clean only accessible air-gap parts

    • If the installation has an air gap, clean it according to the owner or installation instructions.
    • Disconnect power before wet-area work.

  3. Stop if draining still fails

    • If C1 returns after the accessible air gap is clear, request service.
    • Do not access the pump or internal wiring.

Actions not recommended

  • Do not reach into wet areas while power is connected.
  • Do not open the pump, wiring, or control compartments.
  • Do not use chemical drain products unless the manual specifically allows them.

When to stop and request service

  • C1 remains after the air gap is checked.
  • There is standing water that cannot be addressed safely.
  • Pump or internal drain diagnosis would be required.

Documented source

Official information reviewed

Our summary is based on manufacturer support material and stays within the limits of that material.

Source reviewed by Appliance Help HQ: August 17, 2026.

Appliance Help HQ is an independent informational site and is not affiliated with or endorsed by GE Appliances.

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