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Error code reference

GE Dishwasher Error Code F218

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 F218 means on a GE dishwasher

The F218 error code on a GE dishwasher indicates that a fault has been detected internally on 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 timing, motor operation, water valve control, heating element activation, and sensor input processing. When the board's self-diagnostic routines detect an internal failure it cannot recover from, it triggers the F218 code to alert the user and technician that the board itself is the source of the problem.

This type of fault typically originates from component-level failures on the control board itself, such as failed relays, damaged microprocessors, corrupted firmware, or burned circuit traces. Unlike sensor-related error codes that point to an external component feeding bad data to the board, F218 identifies the board as the faulty unit. Power surge damage, moisture intrusion into the control board housing, and general wear over time are common contributors to this type of internal board failure.

Because the fault is internal to the control board and the board lacks the ability to self-repair, the correct diagnostic approach is direct replacement of the machine control board. There are no external sensors or wiring harnesses to test first when this specific code appears. A technician should confirm the error code is present and consistent before ordering a replacement board, and should inspect the board for any visible signs of burning, corrosion, or physical damage prior to installation of the new part.

Source: manufacturer service documentation.

Common causes of F218

  1. 01

    Internal control board failure

    Part replacement

    The most direct cause of F218 is a failure within the machine control board itself, such as a failed relay, burned circuit trace, or damaged microprocessor. The board's own diagnostics have identified it as the faulty component.

  2. 02

    Power surge damage

    Part replacement

    A voltage spike from the home's electrical supply can damage sensitive components on the control board. Inspect the board for burn marks or discoloration as evidence of surge damage.

  3. 03

    Moisture or corrosion on the board

    Part replacement

    Water intrusion into the control board housing can corrode circuit paths and cause internal shorts. Look for rust, white mineral deposits, or corrosion on the board's surface or connectors.

  4. 04

    Firmware or software corruption

    Part replacement

    In some cases, the board's internal programming can become corrupted, causing it to register a fault condition. This is not recoverable through a simple reset and still requires board replacement.

See the test procedure for each cause

Frequently asked questions about F218

What does F218 mean on a GE dishwasher?
F218 indicates that a fault has been detected on the machine control board of the GE dishwasher. The control board's own internal diagnostics have flagged an error it cannot resolve on its own. This code points directly to the control board as the faulty component, not to any external sensor or peripheral part. Replacement of the machine control board is the recommended corrective action.
Can I fix the F218 error on my GE dishwasher myself?
A knowledgeable DIYer comfortable with appliance repair can replace the machine control board, as it typically involves disconnecting a wiring harness and swapping the board. However, you should ensure the dishwasher is fully disconnected from power before beginning any work. Sourcing the correct replacement board for your specific GE model is essential to a successful repair.
Will resetting my GE dishwasher clear the F218 error code?
A power reset is unlikely to permanently clear the F218 code because it reflects an internal hardware fault on the control board, not a temporary software glitch. The code may disappear briefly after a reset but will typically return once the dishwasher attempts to run a cycle. Board replacement is required to resolve the fault permanently.
Is it safe to use my GE dishwasher when it shows the F218 error?
It is generally not recommended to continue operating the dishwasher while the F218 error is active. A faulty control board can cause unpredictable behavior, including failure to stop filling, improper heating, or the machine not completing cycles correctly. Using the appliance in this condition could potentially worsen the fault or lead to other issues.
How much does it cost to fix the F218 error on a GE dishwasher?
The cost to repair the F218 error depends on whether you hire a technician or replace the board yourself. A replacement machine control board for a GE dishwasher typically ranges from around $80 to $250 or more depending on the model. Adding professional labor, total repair costs can range from $150 to $400 or higher. Comparing the repair cost to the age and overall condition of the appliance is a useful step before committing to the repair.

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