LG Dryer PF Error Code: Causes and Fixes
Quick answer: Power interruption detected
What you’ll notice
Dryer stopped mid-cycle; control board detected a power interruption.
LG
Dryer
Code PF
medium severity
LG models: The lint filter is at the top of the door opening on most LG DLE/DLGX models. LG's FlowSense sensor measures exhaust restriction and contributes to vent alerts. LG TurboSteam models have a water inlet valve; if a water-adjacent fault appears on a vented dryer, check whether the steam line is intact.
Common causes
- Utility power cut
- Tripped circuit breaker (electric dryers need a double-pole breaker)
- Loose connection at the outlet or terminal block
Step-by-step fix
- Check the circuit breaker — reset if tripped.
- For a 240V electric dryer, the breaker has two handles; if only one tripped, reset both.
- Resume the interrupted cycle.
- If breakers trip repeatedly, have an electrician inspect the outlet and wiring.
Tools you may need
None
Prevention
- Have the dryer outlet and wiring inspected every few years.
- Do not run the dryer on an extension cord.
When to stop DIY
Call an electrician if the breaker trips again during the same cycle.
FAQ
What does PF mean on LG dryer?
PF usually indicates: Power interruption detected.
Can I keep using the appliance with PF?
Use caution. Severity is medium. Call an electrician if the breaker trips again during the same cycle.
How long does this fix usually take?
Typical first-pass troubleshooting takes 2 minutes.