LG Dishwasher Error Code PF
This is a notice, not a fault: the machine is telling you the power went out mid-cycle, after a cut, a surge or a tripped breaker. In most cases the dishwasher simply picks up or restarts once power is stable. Only worry if PF keeps appearing when your power has been steady.
Common causes
- Power cut or brief outage during the cycle
- Tripped circuit breaker
- Power surge
- Loose plug or failing outlet
What to check, in order
- Press a button or restart the cycle — on many models the display clears within seconds once power is back
- Check the breaker panel and reset the dishwasher's breaker if it tripped
- Make sure the plug is pushed fully into the outlet
- If PF shows repeatedly with no outage, have the outlet, supply and control board checked
Clear the code and test
- Fix what the checks above found first — a filter cleaned, a hose straightened, the spray arms freed. Clearing the code without fixing the cause only brings it back.
- Close the door, plug the dishwasher back in (or restore its breaker) and make sure the water tap is open.
- Run the shortest programme and stay nearby for the first minutes, watching for leaks and listening for the drain pump.
- If the programme finishes with no code, the fault is cleared. If the code returns, write down the code and when it appeared before calling a technician — it speeds up the diagnosis.
When to call a professional
This display is not a fault, so there is normally nothing to book. Call a technician only if the machine also behaves abnormally, or if any of these apply:
- The code comes back after you have run the checks and a test cycle.
- You smell burning, see sparks or scorch marks, or the breaker trips.
- Water is leaking and you cannot stop it at the tap.
- The fix needs panels opened beyond what your manual describes, or a part tested with a meter, and you are not set up for that.
When you call, give the brand, the code PF, your model number (on a label inside the door or on the back) and the checks you already ran. It shortens the visit.
Parts that may be involved
Electronic control board (only if PF recurs without outages)
Parts are model-specific. Find your model number first — usually on a label inside the door, on the door frame or on the back — and match the part to that number before ordering.
Questions people ask about PF
What does PF mean on a LG dishwasher?
PF means: Power failure — the cycle lost power. This is a notice, not a fault: the machine is telling you the power went out mid-cycle, after a cut, a surge or a tripped breaker. In most cases the dishwasher simply picks up or restarts once power is stable. Only worry if PF keeps appearing when your power has been steady.
Can I fix LG PF myself?
There is nothing to fix: code PF is a status display, not a fault. The checks on this page show how to exit the mode or confirm the setting.
How do I clear LG PF?
Fix the cause first — clearing the code on its own brings it straight back. Then restore power and water, run the shortest programme, and watch the stage where the code appeared. If the programme finishes with no code, it is cleared.
Sources checked
- LG Help Library: washing machine error codes
- PartsTown Resource Center: LG washing machine troubleshooting codes
The meaning and checks for this code were checked against the sources above in November 2026. Codes vary by model and region; if your manual lists a different meaning for your exact model, follow the manual.