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Error code reference

GE Dishwasher Error Code C3

Dishwasher will not go into pump out; the control did not receive an electrical signal indicating the drain…

GE codesGE dishwasher codes

Dishwasher will not go into pump out; the control did not receive an electrical signal indicating the drain sensor switch has closed, indicating the drain solenoid did not activate properly. Cycle stops.

First step from the service manual

Check pump out switch; replace if inoperative.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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What C3 means on a GE dishwasher

The C3 error code on a GE dishwasher indicates a drain pump-out failure caused by a missing electrical signal from the drain sensor switch. During normal operation, when the drain solenoid activates, the drain sensor switch should close and send a confirmation signal back to the control board. If the control board does not receive this signal within the expected window, it registers C3 and halts the cycle entirely to prevent potential flooding or mechanical damage.

The drain solenoid is the primary suspect in most C3 situations. This solenoid is responsible for opening the drain valve to allow water to exit the tub. If the solenoid fails to energize, the valve stays closed, water cannot exit, and the sensor switch never closes. Causes of solenoid failure include a burnt-out coil, broken wiring in the circuit, or a failed connection at the control board. The drain sensor switch itself can also fail mechanically or electrically, meaning the solenoid may actually be activating correctly but the switch is not registering the movement.

Diagnosing C3 starts with inspecting the pump-out switch directly. A technician should verify that the switch is receiving power, that it physically actuates when the solenoid engages, and that it sends a proper closed-circuit signal back to the control. Wiring harness integrity between the switch, solenoid, and control board should also be confirmed. If the switch tests as inoperative or fails to close under normal solenoid activation, replacement of the switch is the recommended first corrective action.

Source: manufacturer service documentation.

Common causes of C3

  1. 01

    Failed drain sensor switch

    Part replacement

    The drain sensor switch may be mechanically stuck or electrically open and unable to send a closed signal to the control board. This is the first component to test and replace if inoperative.

  2. 02

    Defective drain solenoid

    Part replacement

    If the drain solenoid coil has burned out or lost continuity, it cannot open the drain valve and the sensor switch will never actuate. Test the solenoid coil for proper resistance to confirm function.

  3. 03

    Wiring harness damage or loose connections

    Wiring / connection

    Broken wires or corroded connectors between the drain solenoid, sensor switch, and control board can interrupt the signal path and trigger C3 without any component actually failing. Inspect all connectors in the drain circuit for looseness, corrosion, or visible damage.

  4. 04

    Control board failure

    Part replacement

    If the control board is not sending the activation signal to the solenoid or is not reading the switch signal correctly, C3 can appear even when all other drain components are functional. This is typically diagnosed after ruling out the switch, solenoid, and wiring.

See the test procedure for each cause

Frequently asked questions about C3

What does C3 mean on a GE dishwasher?
C3 means the dishwasher attempted to drain but the control board never received confirmation that the drain solenoid activated properly. Specifically, the drain sensor switch did not close and send the expected electrical signal back to the control. The dishwasher stops the cycle when this happens to prevent damage.
Can I fix the C3 error myself?
Some homeowners comfortable with basic appliance repair can inspect and replace the drain sensor switch, which is the first recommended diagnostic step. Testing the solenoid and checking wiring connections are also within reach for experienced DIYers. However, if the control board is involved, professional diagnosis is recommended to avoid unnecessary parts replacement.
Is it safe to use my GE dishwasher when it shows C3?
No, you should not continue running the dishwasher while C3 is active. The cycle stops because the machine cannot confirm draining is working, and running it could result in standing water not being removed or potential overflow. Address the drain system issue before resuming normal use.
Will resetting the dishwasher clear the C3 error?
A reset may temporarily clear the code and allow the dishwasher to attempt a new cycle, but C3 will return if the underlying problem with the drain sensor switch or solenoid is not corrected. Resetting is only useful as a diagnostic step to confirm the fault is consistent, not as a permanent fix.
How much does it cost to repair a GE dishwasher C3 error?
Repair costs depend on which component has failed. Replacing the drain sensor switch or drain solenoid typically involves parts costs in the range of $15 to $75, plus labor if a technician is hired. If the control board requires replacement, total costs can range from $150 to $350 or more depending on the model and service rates in your area.

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