LG Washer PF Error Code: Power Failure During Cycle
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What Error Code PF Means
The PF error code means your LG washer lost power during a running cycle. A power outage, tripped breaker, or loose plug interrupted the electrical supply. The washer remembers it was mid-cycle and displays PF when power returns. This is not a mechanical failure β it is the washer telling you the cycle did not finish.
Common Causes
Power outage
A neighborhood power outage or utility interruption cut power to the washer during a cycle. The most common cause of the PF code.
Tripped circuit breaker
The washer shares a circuit with other high-draw appliances (dryer, space heater, etc.) and the breaker tripped from overload.
Loose power cord connection
The plug is not fully seated in the wall outlet, or the outlet itself has worn spring contacts that lose grip on the plug prongs.
Faulty outlet or wiring
A worn GFCI outlet trips intermittently, or old wiring in the wall has a loose connection that drops power under load.
How to Fix It
- 1
Restart the interrupted cycle
Press the Power button to clear the PF code. Select the same cycle you were running and press Start. The washer restarts the full cycle from the beginning. Some LG models let you press Start without reselecting β the washer resumes from where it stopped.
- 2
Check the circuit breaker
Open your electrical panel and find the breaker for the laundry room circuit. If it is tripped (in the middle position), switch it fully off and then back on. If it trips again when the washer runs, the circuit is overloaded or the breaker is weak.
- 3
Inspect the power cord and outlet
Make sure the washer plug is pushed fully into the outlet. Wiggle it β if there is any play, the outlet contacts are worn. Replace the outlet. Never use an extension cord with a washer. The washer should be on a dedicated 20-amp circuit.
- 4
Test the outlet voltage
Use a multimeter set to AC volts and measure the outlet. You should read between 110V and 125V. If the reading fluctuates or drops when the washer starts, the circuit wiring has a problem. Call an electrician.
- 5
Check the GFCI outlet
If the washer is plugged into a GFCI outlet (the kind with Test and Reset buttons), press Reset firmly. GFCI outlets in laundry rooms trip from moisture or minor ground faults. If it keeps tripping, the GFCI is either faulty or detecting a real ground fault in the washer's power cord.
When to Call a Professional
Call a technician if the PF code appears repeatedly without an obvious power outage, which indicates an intermittent electrical problem inside the washer or at your outlet. TruePro's $59 diagnostic fee is credited toward the repair. All repairs include a 90-day warranty on parts and labor. We serve LA County, Orange County, and Ventura County. Call 877-378-3111. First-time customers save 15% on labor with code NEW15.
Estimated Repair Cost
| Option | Estimated Cost |
|---|---|
| DIY (parts only) | $0 - $15 |
| Professional repair | $90 - $200 |
Most PF errors require no repair β just restarting the cycle. If the outlet or power cord needs replacement, parts cost $5-$15. If a control board power supply circuit is the cause, expect $150-$400 for professional board repair or replacement.
See full washer repair cost breakdown βLG Washer PF β FAQ
Related LG Error Codes
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