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Error code reference

GE Dishwasher Error Code F226

A fault has been detected on the machine control board.

GE codesGE dishwasher codes

A fault has been detected on the machine control board.

First step from the service manual

Replace the machine control board.

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

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  • Wiring diagram references and connector pinouts from the OEM service manual
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What F226 means on a GE dishwasher

Error code F226 on a GE dishwasher indicates a fault detected on the machine control board. The machine control board is the primary electronic control module that manages all dishwasher functions, including wash cycles, motor operation, water fill and drain sequences, and heating element control. When the dishwasher's internal diagnostics detect an abnormal condition or failure within this board, it stores and displays F226 to alert the technician that the control board itself is the source of the problem.

This fault typically points to an internal failure of the control board rather than a failure in a downstream component. Common root causes include failed solder joints or cracked circuit board traces from thermal cycling, a shorted or open relay on the board, corrupted firmware, or voltage spike damage from a power surge event. Because the fault originates within the board's own circuitry, external wiring checks may not reveal a clear cause, and the board will often fail to respond correctly to cycle inputs or may produce erratic behavior before displaying the code.

The recommended first diagnostic step is direct replacement of the machine control board. Before replacing, confirm that incoming line voltage is stable and within specification, and inspect the wiring harness connectors at the board for corrosion, loose pins, or heat damage. If the connections are clean and secure and the power supply is normal, the board itself is the confirmed fault point and should be replaced to restore proper operation.

Source: manufacturer service documentation.

Common causes of F226

  1. 01

    Failed machine control board

    Part replacement

    Internal component failure on the control board, such as a failed relay, cracked trace, or shorted circuit, is the most direct cause of F226. The board's own self-diagnostic routine flags the fault when it detects abnormal readings in its own circuitry.

  2. 02

    Power surge or voltage spike damage

    Part replacement

    A sudden voltage spike from the home's electrical supply can damage components on the control board. Check if the fault appeared after a power outage or electrical storm, as this is a common trigger for board-level failures.

  3. 03

    Loose or corroded wiring harness connection at the board

    Wiring / connection

    A poor connection at one of the harness connectors on the control board can cause signal faults that trigger internal board errors. Inspect all connectors at the board for corrosion, bent pins, or connectors that are not fully seated.

  4. 04

    Thermal damage from overheating

    Part replacement

    Repeated heat cycling in the dishwasher cabinet can degrade solder joints and board components over time. Look for discoloration or visible burn marks on the board as evidence of heat-related damage.

See the test procedure for each cause

Frequently asked questions about F226

What does F226 mean on a GE dishwasher?
F226 on a GE dishwasher means the appliance has detected a fault on the machine control board. This is a self-reported diagnostic code, meaning the control board's internal circuitry has identified an abnormal condition within itself. The code signals that the board is not functioning correctly and will need to be replaced to restore normal operation.
Can I fix F226 on my GE dishwasher myself?
A knowledgeable DIYer can attempt this repair by first checking that power is stable, then inspecting all wiring harness connectors at the control board for looseness or corrosion. If those checks do not resolve the fault, replacing the machine control board is the required fix. Working with dishwasher electronics requires disconnecting power at the breaker before accessing any components.
Will resetting my GE dishwasher clear the F226 code?
Resetting the dishwasher by cutting power at the breaker for a few minutes may temporarily clear the code, but F226 indicates an internal board fault that is likely to return. Because the fault originates within the control board's own circuitry, a reset does not address the underlying hardware failure. If the code returns after a reset, board replacement is necessary.
Is it safe to use my GE dishwasher when F226 is displayed?
It is not recommended to continue using the dishwasher while F226 is active. A faulty control board can cause unpredictable behavior, including failure to shut off water, incorrect cycle operation, or electrical faults. Disconnect power to the unit until the repair is completed.
How much does it cost to fix a GE dishwasher F226 error?
The cost to repair F226 depends on parts and labor in your area. A replacement machine control board for a GE dishwasher typically costs between $100 and $250 for the part alone, with professional labor adding another $75 to $150 depending on local rates. DIY replacement can reduce the total cost significantly if you are comfortable working with appliance electronics.

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