What is the LG Washer PF error?#
PF on an LG washer means power failure: the washer lost power mid-cycle and is telling you the run was interrupted, not that a component broke. Clearing it is one press, it is safe, and in the ordinary case it costs nothing — which is where most answers stop. That is fine for the first PF and useless for the second. A PF that happens once after a storm and a PF that happens at the same point of every spin are the same three letters describing three different problems with three different owners: the utility, your house wiring, and the washer. What separates them is not the code but its pattern, and you already have that information.
Whose PF is it? Match the pattern before you call anyone#
Two things decide this: how often PF comes back, and where in the cycle it lands. Note both for two or three loads before spending anything — a single PF carries no information at all.
| The pattern you are seeing | Whose problem it is | What it costs you |
|---|---|---|
| One PF after a storm or a known outage, then never again | The utility | Nothing — the code did its job and reported the interruption |
| PF every few weeks, at no consistent point, and clocks or lights elsewhere in the house also reset | House supply, shared beyond the laundry room | An electrician's question, not an appliance one |
| PF reliably as the drum ramps into spin, almost never earlier in the cycle | The laundry circuit sagging under peak spin current — shared load or a tired breaker | An electrician, or moving whatever else shares that circuit |
| PF when the machine rocks, when the load is unbalanced, or after you slide the washer back | The plug, the cord where it enters the machine, or the outlet's grip | Usually free: reseat the plug, retire any extension cord in the path |
| PF every cycle on an outlet a lamp runs from all day, with no rocking and nothing shared | The washer's own cord assembly or inlet wiring | The one case on this list that is a service call |
If you are on the third line, resist the reflex to keep restarting: each retry drives the same current through the same sagging circuit, and repeated interrupted spins are harder on the motor and control than the outage was.
Where these rows come from: the four checks this page's own diagnostic sequence walks — restart, outlet, plug and cord, breaker — plus the spin-ramp behaviour in the field note, re-keyed from the part being tested to the pattern you can watch. This page holds no measured frequency for any of the five, and none is claimed; the rows are ordered from the cause you can do nothing about to the one that ends at the washer.
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PF on a LG Washer: likely causes and repair cost#
On a LG Washer, the PF code signals: power failure.
| Likely cause | Typical likelihood |
|---|---|
| Power dropped mid-cycle then returned | Most common |
| Loose plug shaken during the spin ramp | Common |
| A shared laundry circuit sagging under peak spin current | Less common |
Typical professional repair: up to $90 · Difficulty: easy · often owner-fixable
Fastest thing to try first: Restart cycle after power is restored.
Symptoms that often accompany PF: Cycle stopping unexpectedly; Display resetting to standby; Time remaining display blinking
Technician diagnostic sequence for PF:
- Press the Power button to turn the washer back on, then press Start/Pause to resume the interrupted cycle
- If PF appears repeatedly without a known power outage, check the electrical outlet with a lamp or phone charger to verify consistent power
- Inspect the power cord connection at the wall outlet and at the washer — a loose plug can cause intermittent power drops during spin vibration
- Check the home circuit breaker for the laundry room — a breaker that trips during high-current spin cycles indicates an overloaded circuit or a failing breaker
Parts a technician may check or replace: Power Cord Assembly
Field note: LG washers draw peak current during the spin ramp-up phase. If PF appears consistently at the start of spin, the circuit may be shared with other high-draw appliances. California electrical code requires a dedicated 20A circuit for laundry — older homes may not comply.
How to troubleshoot the PF error yourself#
Clearing the code is trivial — power off, power on, press Start and the cycle picks up. Everything useful happens after that, and it is observation rather than work. Write down two things each time PF appears: the wall-clock gap since the last one, and how far the cycle had got. Two or three loads is enough to tell a random pattern from a spin-locked one, and that distinction is the whole diagnosis. While you wait, take the free checks off the board. Push the plug fully home; a laundry outlet loosened by years of vibration will hold a plug that looks seated and still break contact when the drum rocks. Take any extension cord out of the path entirely — a washer's spin draw is not what those are built for. Plug a lamp into the same outlet and leave it on through a full cycle: if the lamp flickers when PF lands, you have your answer and it is not the washer. Check whether the laundry circuit is carrying anything else, especially a dryer or a freezer that cycles on unpredictably. Only when PF still arrives every cycle on a solid, exclusively-used outlet is there anything left inside the machine to look at, and that is the point to stop resetting and call someone.
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Is the LG Washer PF error worth fixing?#
For most people PF never becomes a spending decision at all — you press Start, the cycle finishes, and the range starts at $0 for exactly that reason. It turns into one only in the last row of the table above: PF on every cycle, on an outlet that runs a lamp all day, with nothing shared and nothing rocking. Then the cord assembly or the inlet wiring is the suspect, a technician traces it, and the visit runs up to $90 — small against any washer worth keeping. What is worth avoiding is the middle ground, where PF is really a house-wiring problem and the machine keeps getting reset through it. Repeatedly interrupted spins are harder on a motor and control than an outage ever was, so an electrician's hour spent on a sagging laundry circuit protects the washer more than any appliance repair would. PF is never on its own a reason to replace the machine.
LG Washer PF: frequently asked questions#
What does the PF error mean on a LG Washer?#
PF means power failure — the washer lost electrical power mid-cycle and flags the interruption. It is a notice about the supply, not a broken part.
Is it safe to keep using a LG Washer that shows the PF error?#
Yes, it is safe. PF reports a power interruption only; there is no leak or shock hazard implied by the code.
Can I clear the PF error myself, or do I need a technician?#
You can clear PF yourself by restarting and checking the plug and breaker. Only a PF that persists on a good outlet needs a technician.
How much does it cost to repair the PF error on a LG Washer?#
Clearing PF normally costs nothing. If it recurs and a tech must replace a damaged cord or trace a connection, expect up to $90.
Which parts usually fail when a washer throws the PF code?#
Usually no part fails — PF is a power-interruption notice. A repeat PF on a solid outlet points to the power cord assembly or inlet wiring.
Is a LG Washer with the PF error worth repairing?#
On its own PF is not worth paying to repair — you just reset it. Only a persistent PF on a washer with other age-related faults would enter a replace decision.
Why does power dropped mid-cycle then returned trigger the PF error?#
When power drops mid-cycle and then returns, the washer records the interruption and shows PF so you know the cycle did not finish. A loose plug or a tripping outlet is the usual source.
Appliance Repair Technician · 8 years experience
Experienced technician with 8 years specializing in dishwasher repairs and European appliance brands including Bosch and Thermador.


