LG Dryer PF — What It Means & How to Fix It
PF is LG's power-failure code, shown when the electricity to the dryer was cut mid-cycle, and it almost always clears with a simple factory reset rather than any repair.
What this code means
When power drops out during a cycle — an outage, a tripped breaker, or a loose plug — the dryer records PF so you know the interruption happened rather than the cycle finishing on its own. It's informational more than diagnostic. LG's fix is a factory reset that clears the flag and lets you start fresh.
PF reflects an interruption to the dryer's power, so if it recurs without an obvious outage, look at the outlet, plug, and breaker for a loose or failing connection before assuming a control fault.
Most likely causes
| Cause | How likely | DIY-fixable? |
|---|---|---|
| A household power outage during a cycle | Very common | Yes — reset |
| Tripped circuit breaker or blown fuse | Common | Yes — reset |
| Loose or partly unplugged power cord | Occasional | Yes — no tools |
| Failing outlet or breaker if PF keeps returning | Less common | Partly — electrician check |
What you can try yourself
- Unplug the dryer, or switch off its circuit breaker, to take it fully off power.
- With the power off, press and hold the Start/Pause button for about five seconds to run LG's factory reset.
- Restore power and start a cycle — PF should be gone and the dryer should run normally.
- Check that the cord is firmly seated in the outlet; a loose plug can cause repeat PF codes.
- If PF keeps returning without any outage, have an electrician check the outlet and breaker for a failing connection.
When to call a technician
- PF returns repeatedly even though there's been no power outage.
- The dryer's breaker trips again each time you run a cycle.
- The plug, cord, or outlet feels warm, or looks scorched or damaged.
Typical professional repair cost: The reset itself is free; if an outlet or breaker is at fault, an electrician visit typically runs $100–$250.
Frequently asked questions
How do I clear a PF code on my LG dryer?
Take the dryer off power at the plug or breaker, hold the Start/Pause button for about five seconds while it's off, then restore power. That factory reset clears the power-failure flag. Restart your cycle and it should run normally.
Does a PF code mean my LG dryer is broken?
Usually not. PF just records that power was interrupted mid-cycle — an outage, a tripped breaker, or a jostled plug. A reset clears it. It only suggests a problem if it keeps coming back with no outage, which points to a loose or failing outlet, cord, or breaker.
Why does my LG dryer keep showing PF?
Repeated PF codes mean the dryer keeps losing power. Check that the cord is fully seated and the breaker isn't tripping. If it happens with no outage and a firm connection, an electrician should check the outlet and circuit, since a weak connection can drop power under load.
Related LG codes
- LG Dryer d80 d80 is LG's Flow Sense system telling you the exhaust duct is about 75–80% restricted: the dryer keeps running but dries slowly, so treat it as an early warning to clean the lint filter and the full vent line before the blockage gets worse.
- LG Dryer d90 d90 — and the more severe d95 — is LG's Flow Sense system reacting to a badly blocked exhaust of 90% or more by cooling the dryer down and stopping the cycle, so unlike the milder d80 you have to clear the vent before it will run properly again.
- LG Dryer dE dE tells you an LG dryer can't confirm its door is latched shut, so it won't spin the drum — usually because laundry is caught in the seal, the door wasn't pushed firmly enough, or the door switch is worn.
- LG Dryer tE1 tE1, and the related tE3, means an LG dryer has detected a problem with its thermistor — the sensor that tracks drum temperature — so a factory reset clears a one-off glitch, but a code that keeps returning points to a failing sensor for a technician.
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