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Error code reference

GE Dishwasher Error Code F145

Inverter has detected incorrect AC voltage.

GE codesGE dishwasher codes

Inverter has detected incorrect AC voltage.

First step from the service manual

Check house voltage, harnessing, then replace inverter if all is OK.

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

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What F145 means on a GE dishwasher

The F145 error code on a GE dishwasher indicates that the inverter board has detected an incorrect AC voltage level at its input. The inverter is responsible for converting incoming AC power into the controlled electrical signal used to drive the wash motor at variable speeds. When the inverter's internal monitoring circuit senses that the supply voltage is outside of its acceptable operating range, it triggers this fault and halts operation to prevent damage to the motor or drive electronics.

The most common external cause of F145 is a problem with the household power supply itself. Low voltage conditions caused by a weak circuit, a failing outlet, or upstream electrical issues in the home can push the supply voltage below the inverter's threshold. A tripped or weakened circuit breaker, shared circuit loading, or even utility supply fluctuations can all produce a voltage reading that the inverter flags as incorrect.

If house voltage checks out within normal range, the wiring harness connecting the power supply to the inverter board becomes the next focus. Damaged, corroded, or loose connector pins in the harness can cause voltage drop or intermittent contact, leading the inverter to register an out-of-range condition. If both the supply voltage and the harness wiring are confirmed to be in good condition, the inverter board itself has likely failed internally and will need to be replaced to clear the fault.

Source: manufacturer service documentation.

Common causes of F145

  1. 01

    Low or incorrect house voltage

    Wiring / connection

    If the voltage at the dishwasher's outlet or junction box is outside the normal range, the inverter will flag it immediately. Use a multimeter to verify the supply voltage meets the required level for the appliance.

  2. 02

    Loose or damaged wiring harness

    Wiring / connection

    A harness connector with corroded pins, a loose fit, or damaged wiring between the power supply and the inverter can cause voltage drop that triggers this fault. Inspect all connectors along the harness for signs of burning, corrosion, or poor seating.

  3. 03

    Weak or tripped circuit breaker

    Wiring / connection

    A circuit breaker that has partially tripped or is beginning to fail can deliver reduced voltage to the dishwasher without fully cutting power. Reset the breaker and verify it holds, then check voltage at the outlet.

  4. 04

    Failed inverter board

    Part replacement

    If house voltage and all harness connections check out correctly, the inverter board's internal voltage sensing or power conditioning circuitry has likely failed. Replacing the inverter board is the final step in the diagnostic sequence.

See the test procedure for each cause

Frequently asked questions about F145

What does F145 mean on a GE dishwasher?
F145 means the inverter board has detected that the incoming AC voltage is incorrect or outside its acceptable range. The inverter is a critical component that drives the wash motor, and it monitors supply voltage continuously. When the voltage falls outside expected parameters, the inverter shuts down and stores this fault code to alert a technician.
Can I fix the F145 error myself?
Some steps are DIY-friendly, such as checking and resetting the circuit breaker, verifying outlet voltage with a multimeter, and inspecting visible harness connectors for corrosion or loose fit. However, if the inverter board itself needs replacement, that repair involves working near line-voltage components and is best handled by a qualified technician.
Is it safe to use the dishwasher when F145 is showing?
No, you should not attempt to run the dishwasher while this code is active. The fault indicates a voltage irregularity that could damage the motor, the inverter board, or other electronic components if the appliance is forced to operate. Address the root cause before resuming use.
How much does it cost to repair a GE dishwasher F145 error?
If the fix is as simple as addressing a wiring connection or a house voltage issue, costs may be minimal or limited to a service call fee, typically in the range of $75 to $150. If the inverter board needs replacement, parts and labor combined can range from $200 to $450 depending on the specific model and local labor rates.
Will resetting the dishwasher clear the F145 code?
A reset may temporarily clear the code, but it will return if the underlying voltage problem has not been corrected. Resetting without addressing the root cause, whether that is a house voltage issue, a faulty harness, or a failed inverter, will not provide a lasting fix. Always complete the full diagnostic sequence before relying on a reset.

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