GE Dishwasher Error Code F149

F149 signals that the dishwasher's control system has detected a poor or broken electrical connection in the circuit between the control board and the inverter. The inverter controls wash motor speed, so this fault typically stops the wash cycle. The first step is to inspect the wiring harness and connectors, then replace the inverter if the wiring checks out.

A reset may temporarily clear the code and allow the dishwasher to start, but if the underlying connection problem or inverter fault still exists, F149 will return. A reset is useful for confirming whether the fault is intermittent, but it does not repair the wiring or the component causing the error.

If only the harness connector needs reseating or cleaning, the repair may cost little to nothing beyond your time. A replacement wiring harness typically runs in the range of $20 to $60 in parts. If the inverter needs to be replaced, expect parts costs in the range of $80 to $200, plus labor if you hire a technician, which can add $100 to $200 depending on your area.

If the cause is simply a loose connector, a careful homeowner can reseat it after unplugging the dishwasher. However, tracing a damaged harness or replacing an inverter requires comfort working with appliance wiring and some disassembly of the unit. If you are not confident working around electrical components, a qualified technician is the safer choice.

It is not recommended to operate the dishwasher while this fault is active. A poor connection to the inverter can cause the wash motor to run incorrectly or not at all, and continued operation with a compromised electrical circuit can cause additional component damage. Disconnect power until the fault is diagnosed and repaired.