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Error code reference

GE Dishwasher Error Code F220

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 F220 means on a GE dishwasher

The F220 error code on a GE dishwasher indicates that an internal fault has been detected within the machine control board. The machine control board is the central processing unit of the dishwasher, responsible for coordinating all major functions including wash cycle sequencing, motor operation, water inlet valve timing, heating element control, and user interface communication. When the board's self-diagnostic routine detects an anomaly it cannot recover from, it triggers the F220 code and halts operation to prevent further damage.

Faults at the control board level can stem from several root causes. Power surge damage is a common contributor, as voltage spikes can destroy onboard components such as relays, capacitors, or microprocessors. Moisture intrusion into the control board housing can cause short circuits or corrosion on solder joints and contact points. In some cases, a manufacturing defect or component failure due to age and thermal cycling will cause the board to fail without any external trigger.

Because the F220 code points directly to the machine control board itself rather than a downstream sensor or actuator, the diagnostic path is straightforward. The primary corrective action is replacement of the machine control board. Before replacement, it is worth inspecting the board for visible signs of burning, corrosion, or damaged connectors, and confirming that incoming power to the board is within spec. However, if no external wiring or power issue is found, board replacement is the appropriate repair.

Source: manufacturer service documentation.

Common causes of F220

  1. 01

    Failed machine control board

    Part replacement

    The control board itself has developed an internal fault, which may be due to age, component failure, or thermal stress. This is the primary cause indicated by the F220 code, and replacement is the directed repair.

  2. 02

    Power surge damage

    Part replacement

    A voltage spike from the home's electrical supply can damage onboard components on the control board, causing it to fail and trigger this code. Check for signs of burn marks or damaged components on the board surface.

  3. 03

    Moisture or water intrusion

    Part replacement

    Water leaking into the control board housing can cause short circuits or corrosion on board contacts and solder joints. Inspect the board and its enclosure for water stains, rust, or corrosion.

  4. 04

    Damaged or loose wiring harness connections

    Wiring / connection

    A loose, corroded, or broken connector at the control board can disrupt communication and power delivery enough to trigger a board fault. Inspect all harness connectors attached to the board for secure seating and clean contacts.

  5. 05

    Intermittent power supply issues

    Wiring / connection

    Unstable or incorrect incoming voltage to the control board can cause operational faults. Verify that the dishwasher is receiving proper supply voltage at the junction box before condemning the board.

See the test procedure for each cause

Frequently asked questions about F220

What does F220 mean on a GE dishwasher?
The F220 code on a GE dishwasher means the machine control board has detected an internal fault. The control board manages all dishwasher operations, and when it identifies a problem it cannot resolve, it stops the cycle and displays this code. The recommended repair is replacement of the machine control board.
Can I fix the F220 error myself on a GE dishwasher?
A knowledgeable DIYer comfortable with appliance repair can replace a dishwasher control board. The process typically involves disconnecting power, accessing the control board housing, disconnecting the wiring harnesses, and installing the new board. However, working with appliance electronics does carry risk, and if you are not comfortable with the process, a licensed technician is recommended.
Is it safe to use my GE dishwasher while the F220 error is showing?
No. When the F220 code is active, the dishwasher has halted operation due to a control board fault. Attempting to force the machine to run with a faulted control board could cause unpredictable behavior or additional damage. The dishwasher should remain out of service until the board is replaced.
Will resetting my GE dishwasher clear the F220 error?
A power reset, such as unplugging the unit or cycling the circuit breaker, may temporarily clear the display, but it will not resolve the underlying control board fault. The F220 code is likely to return immediately or after a short period of operation. Board replacement is required for a lasting fix.
How much does it cost to fix a GE dishwasher F220 error?
The cost depends on whether you perform the repair yourself or hire a technician. A replacement GE dishwasher machine control board typically ranges from $80 to $250 or more depending on the model. If you hire a professional, expect to add $100 to $200 or more in labor costs, bringing the total repair estimate to a range of $180 to $450 or higher.

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