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Error code reference

GE Dishwasher Error Code F10

Temperature sensor reading high.

GE codesGE dishwasher codes

Temperature sensor reading high.

First step from the service manual

Check thermistor, replace main board.

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

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What F10 means on a GE dishwasher

The F10 error code on a GE dishwasher indicates that the temperature sensor, also called the thermistor, is returning a reading that falls outside the expected high-temperature range. The thermistor is a resistive sensor that changes its electrical resistance in response to water temperature. The control board continuously monitors this resistance value, and when the reading suggests an abnormally high temperature condition, it triggers the F10 fault and halts the cycle to prevent potential damage.

The most likely cause of this code is a faulty thermistor rather than an actual overheating condition. A thermistor that has failed internally can produce a resistance value that the control board interprets as a dangerously high temperature, even when water temps are completely normal. Physical damage, corrosion at the connector terminals, or a short circuit within the sensor itself can all produce this type of false high reading.

If the thermistor tests within its correct resistance range and all wiring connections are secure and free of corrosion, the main control board may be misreading the sensor signal due to an internal fault on the board itself. Diagnostics should start with inspecting and testing the thermistor before replacing the control board, as the board is typically the more expensive component. Checking wiring harness continuity between the thermistor and the board is also an important step before condemning either part.

Source: manufacturer service documentation.

Common causes of F10

  1. 01

    Failed thermistor

    Part replacement

    The thermistor has failed internally and is sending an out-of-range resistance reading to the control board, which the board interprets as a high-temperature fault. Testing the thermistor's resistance and comparing it to the expected value will confirm this.

  2. 02

    Corroded or loose thermistor connector

    Wiring / connection

    Corrosion or a poor connection at the thermistor wiring harness connector can distort the resistance signal and cause a false high reading. Inspect the connector terminals for corrosion, moisture, or looseness.

  3. 03

    Damaged wiring between thermistor and control board

    Wiring / connection

    A pinched, chafed, or shorted wire in the harness running from the thermistor to the main board can alter the signal and trigger F10. A continuity check of the wiring harness will identify any breaks or shorts.

  4. 04

    Faulty main control board

    Part replacement

    If the thermistor and all wiring check out correctly, the main control board may be misinterpreting the sensor input due to an internal component failure on the board itself. The board would need to be replaced if all other components test properly.

See the test procedure for each cause

Frequently asked questions about F10

What does F10 mean on a GE dishwasher?
F10 on a GE dishwasher means the temperature sensor, or thermistor, is sending a reading that the control board interprets as abnormally high. The dishwasher stops the cycle as a protective response. In most cases, the sensor itself has failed rather than the water actually being too hot.
Can I fix the F10 error myself?
A knowledgeable DIYer can start by inspecting the thermistor connector for corrosion or looseness, which sometimes resolves the issue without replacing any parts. If the connector looks good, testing the thermistor with a multimeter is the next step. Replacing the thermistor is a relatively straightforward repair, but if the control board is the cause, that replacement is more involved and may be better handled by a technician.
Is it safe to keep using my dishwasher with an F10 error?
It is not recommended to continue running the dishwasher while F10 is active. The code causes the unit to stop the cycle, and attempting to bypass or ignore it could mask a real temperature issue. It is best to diagnose and repair the fault before resuming normal use.
Will resetting the dishwasher clear the F10 code?
A reset may temporarily clear the F10 code, but it will almost certainly return once the dishwasher runs another cycle if the underlying problem is not fixed. The thermistor or control board fault that triggered the code will still be present. A reset alone is not a repair.
How much does it cost to repair a GE dishwasher F10 error?
If the thermistor is the cause, parts and labor typically range from around $75 to $175 depending on your location and the service provider. If the main control board needs replacement, costs can range from $150 to $350 or more, since the board itself is a more expensive component. Getting a diagnosis first helps avoid replacing parts unnecessarily.

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