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Error code reference

GE Dishwasher Error Code F159

Circulation pump fuse fault

GE codesGE dishwasher codes

Circulation pump fuse fault - control has detected a blown fuse on the machine control board to the circulation pump.

First step from the service manual

Check continuity on the circulation pump fuse. Check the circulation pump motor.

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

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What F159 means on a GE dishwasher

The F159 error code on a GE dishwasher indicates a circulation pump fuse fault. Specifically, the machine control board has detected that the onboard fuse protecting the circuit between the control board and the circulation pump motor has blown. This fuse serves as an overcurrent protection device, and when it fails, the control board loses the ability to deliver power to the circulation pump, halting the wash cycle entirely. The dishwasher cannot circulate water without this pump, so the appliance will stop operating and display the fault.

The most common reason a fuse of this type blows is an overcurrent condition caused by a failing or seized circulation pump motor. If the motor draws excessive amperage due to worn bearings, a stuck impeller, or an internal winding failure, the resulting current spike will blow the protective fuse on the control board. In some cases, a wiring harness fault, such as a short to ground or a pinched wire between the control board and the pump motor, can also cause the fuse to open.

Diagnosing this fault requires checking continuity across the circulation pump fuse on the machine control board. A blown fuse will show no continuity. If the fuse is confirmed open, the circulation pump motor itself must also be tested before replacing the control board, since installing a new board without addressing a faulty motor will simply blow the fuse again. Check the pump motor windings for resistance and inspect the wiring harness for visible damage or shorts.

Source: manufacturer service documentation.

Common causes of F159

  1. 01

    Failed or seized circulation pump motor

    Part replacement

    A circulation pump motor with worn bearings, a stuck impeller, or failed internal windings can draw excessive current, blowing the control board fuse. Test the pump motor windings for proper resistance and check that the impeller spins freely.

  2. 02

    Blown fuse on the machine control board

    Part replacement

    The fuse on the control board that protects the circulation pump circuit may have blown due to a current spike. Check continuity across this fuse directly on the board to confirm whether it has opened.

  3. 03

    Short circuit in the pump wiring harness

    Wiring / connection

    A pinched, chafed, or damaged wire in the harness between the control board and the circulation pump can create a short to ground, causing an overcurrent condition that blows the fuse. Inspect the full length of the wiring harness for visible damage.

  4. 04

    Faulty machine control board

    Part replacement

    In less common cases, the control board itself may have an internal failure that caused the fuse to blow without an external fault in the pump or wiring. The board should be evaluated only after the pump motor and wiring have been ruled out.

See the test procedure for each cause

Frequently asked questions about F159

What does F159 mean on a GE dishwasher?
The F159 code means the machine control board has detected a blown fuse on the circuit that powers the circulation pump motor. Without this fuse intact, the control board cannot send power to the pump, and the dishwasher cannot spray water during a wash cycle. The fault is typically caused by a failing pump motor that drew too much current. Both the fuse and the pump motor need to be evaluated to properly resolve this error.
Can I fix F159 on my GE dishwasher myself?
A knowledgeable DIYer can perform initial diagnostics, such as inspecting the wiring harness for visible damage and testing the circulation pump motor for continuity or resistance issues. However, replacing a blown fuse on the control board or swapping out the circulation pump motor requires comfort working with appliance electronics and wiring. If the control board itself needs replacement, professional repair is recommended to avoid damaging the unit.
Is it safe to keep using my dishwasher with an F159 error?
No, you should not continue running the dishwasher while the F159 fault is active. The circulation pump is not receiving power, which means water is not being sprayed during the wash cycle and dishes will not be cleaned. More importantly, if the underlying cause is a short circuit or a failing motor, continuing to operate the appliance could cause further damage to the control board or wiring.
Will resetting my GE dishwasher clear the F159 error?
Resetting the dishwasher may temporarily clear the error code from the display, but it will not resolve the underlying fault. The blown fuse on the control board is a physical component that has failed and cannot be restored by a reset. The fuse must be checked for continuity, and the root cause, whether the pump motor or wiring, must be addressed before the dishwasher will operate normally again.
How much does it cost to repair an F159 error on a GE dishwasher?
Repair costs vary depending on which components need to be replaced. A circulation pump motor replacement typically ranges from $150 to $350 including parts and labor. If the machine control board also needs to be replaced, costs can range from $200 to $500 or more depending on the specific model and labor rates in your area. Getting a diagnosis from a qualified technician before purchasing parts is strongly recommended.

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