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Error code reference

GE Dishwasher Error Code F150

Inverter phase current fault.

GE codesGE dishwasher codes

Inverter phase current fault.

First step from the service manual

Replace inverter.

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

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What F150 means on a GE dishwasher

The F150 error code on a GE dishwasher indicates an inverter phase current fault. The inverter is the electronic module responsible for converting DC power into variable-frequency AC power to control the wash motor speed. When the inverter detects an abnormal current condition in one or more of its output phases, it triggers this fault code to protect the motor and surrounding components from damage caused by overcurrent or unbalanced phase loads.

This fault typically points to a failure within the inverter itself rather than an upstream electrical issue. Phase current faults can occur when internal switching components inside the inverter fail, when the inverter output becomes shorted, or when the motor windings draw excessive current that the inverter cannot regulate properly. Because the inverter monitors current on each phase of its output, even a partial internal failure can trigger the F150 code.

The primary diagnostic step for F150 is replacement of the inverter module. Since the fault is generated by the inverter's own current sensing circuitry, and because internal inverter component failures are not field-repairable, swapping the inverter is the recommended course of action. If the fault persists after inverter replacement, the wash motor itself should be inspected, as a motor with degraded windings can cause overcurrent conditions that stress or damage the replacement inverter.

Source: manufacturer service documentation.

Common causes of F150

  1. 01

    Failed inverter module

    Part replacement

    Internal failure of the inverter's switching components or current sensing circuitry is the most common cause of F150. The inverter itself is the primary suspect and replacement is the recommended first step.

  2. 02

    Shorted inverter output

    Wiring / connection

    A short circuit on the inverter's output side, whether internal or in the wiring between the inverter and motor, can trigger a phase current fault. Inspect wiring harnesses for damaged insulation or pinched wires.

  3. 03

    Degraded or failing wash motor

    Part replacement

    A wash motor with deteriorating windings can draw excessive current, causing the inverter to detect a phase current fault. If a new inverter triggers the same fault, the motor should be tested and inspected.

  4. 04

    Loose or corroded electrical connections

    Wiring / connection

    Poor connections between the inverter and the motor or power supply can create irregular current flow that the inverter interprets as a phase fault. Check all connectors at the inverter for corrosion, moisture, or looseness.

See the test procedure for each cause

Frequently asked questions about F150

What does F150 mean on a GE dishwasher?
F150 on a GE dishwasher indicates an inverter phase current fault. The inverter, which controls the wash motor by regulating electrical current across multiple phases, has detected an abnormal current condition. This causes the dishwasher to stop operating in order to protect the motor and electrical components. Replacement of the inverter is the primary recommended repair.
Can I fix the F150 error code myself?
The F150 fault requires replacing the inverter module, which involves working with the dishwasher's internal electrical components. A knowledgeable DIYer comfortable with appliance disassembly can attempt this repair, but care must be taken to disconnect power before beginning. If the fault returns after inverter replacement, the wash motor may also need to be inspected or replaced, which adds complexity to the repair.
Is it safe to use my GE dishwasher when F150 is displayed?
No, you should not continue using the dishwasher while F150 is active. The fault indicates the inverter has detected an abnormal electrical condition and has shut down to prevent damage. Running the unit in this state could cause further harm to the motor, inverter, or related wiring. Power off the dishwasher until the fault is diagnosed and repaired.
How much does it cost to fix a GE dishwasher F150 error?
Repair costs for an F150 fault will vary depending on parts and labor in your area. Inverter module parts alone can range from roughly $80 to $200 or more depending on the specific model. If professional installation is needed, total repair costs including labor typically fall in the range of $150 to $350. If the wash motor also needs replacement, costs will be higher.
Will resetting my GE dishwasher clear the F150 error code?
Resetting the dishwasher by cutting power may temporarily clear the F150 code, but the fault will almost certainly return once the dishwasher attempts to run the wash motor again. Because F150 reflects an actual hardware fault within the inverter, a reset does not address the underlying problem. Replacement of the inverter is required for a lasting repair.

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