GE dishwasher — Error Code PF
The main control board detected a power failure or voltage interruption.
What it means
The PF error code on a GE dishwasher stands for Power Failure. This code is triggered when the main electronic control board detects a sudden drop or complete loss of incoming AC voltage during a wash cycle, or when power is initially restored to the unit after an outage. It is essentially a status indicator rather than a component failure alert. The machine halts the cycle to prevent erratic operation or flooding caused by interrupted drain and fill sequences. While a simple house power outage is the most common reason, repeated PF codes without external power issues point to internal electrical faults. This can include loose wire nut connections inside the dishwasher junction box, a failing door latch switch that momentarily breaks the circuit, or a degrading power supply on the main control board itself.
Likely Causes
- 1 House Power Outage or SurgeA standard grid power interruption, a tripped household circuit breaker, or a voltage sag will trigger the board to flag a PF.
- 2 Loose Junction Box WiringWire nuts connecting house Romex to the dishwasher harness often loosen over time due to vibration, causing intermittent voltage drops and arcing.
- 3 Faulty Door Latch SwitchA worn microswitch in the door latch assembly can momentarily break the power circuit if the door shifts slightly during a high-pressure wash cycle.
- 4 Failing Main Control BoardThe board's internal power supply components, such as capacitors or relays, may be failing, causing the microprocessor to reboot and flag a false PF code.
How to clear / reset
To clear the PF error code temporarily, press the Start/Reset or Cancel pad on the control panel. Wait 2 minutes for the dishwasher to run a brief drain sequence and reset the board. If the code persists or the panel is unresponsive, perform a hard reset by turning off the dishwasher circuit breaker for 5 minutes, then turning it back on. If the PF code immediately returns or appears randomly during cycles without actual house power issues, the root electrical fault must be diagnosed and repaired.
Common replacement parts
When to call a pro
Call a professional if the PF code continues to appear after resetting the breaker and verifying your home power supply is stable. Diagnosing intermittent power failures requires a multimeter to test voltage under load at the junction box, continuity through the door switches, and the integrity of the main control board. Dealing with 120V AC wiring carries a risk of electrical shock or fire. Axis Appliance Repair offers a $90 diagnostic, waived upon authorized repair, and backs all electrical repairs with a 1-year parts and labor warranty.
FAQs
How much does it cost to fix a GE dishwasher PF code?
If it is just a loose wire in the junction box, repair is typically $120-$150 including labor. If the main control board needs replacement, expect costs between $250 and $400 depending on the specific board.
Can I fix the PF error myself?
You can easily clear the code if it was caused by a simple power outage. However, if the code is persistent, you should only inspect the junction box wiring if you have turned off the breaker and are comfortable working with line voltage.
Will the PF code clear itself?
No, the dishwasher requires manual intervention to acknowledge the power failure. You must press Start/Reset or cycle the breaker to clear the display.
How long does it take to repair?
Tightening junction box wiring or replacing a door latch takes about 30-45 minutes. Main control board replacement generally takes under an hour once the correct part is on hand.
Is it safe to keep using the dishwasher if the PF code keeps flashing?
No. If the PF code is caused by loose wiring in the junction box, continuing to run it can cause arcing, melted wires, and poses a significant fire hazard.
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