Service Guy AI • Dryer • Low severity • Intermediate skill • ~30 min repair
Quick fix:Reset the dryer by unplugging it for a few minutes and then plugging it back in.
What Does LG Dryer Error Code PF Mean?
LG Dryer dryer: Error Code PF
This is a low-severity notification. The machine will keep operating, but the underlying condition will worsen if ignored.
Possible Causes (4)
LG Dryer engineers identify the following root causes for fault code PF. Work through them in the order shown — they are listed from most common to least common.
Power failure during operation
Faulty control board
Loose wiring connections
Intermittent door interlock issue
Step-by-Step Troubleshooting (6 steps)
Follow this sequence to diagnose and clear LG Dryer error code PF. Power down and unplug the machine before any internal inspection.
Disconnect power before servicing.
Check for any recent power outages or interruptions.
Inspect the control board for visible damage or burnt components.
Examine all wiring connections for looseness or corrosion.
Test the door interlock for proper operation.
Reconnect power and observe if the error reoccurs.
Required Parts
Have these LG Dryer OEM part numbers ready before starting the repair. AAdvantage Laundry Systems carries verified parts for every code in this database.
Control Board
Power Supply Unit
Wiring Harness
Thermal Fuse
Diagnostic Test Mode
Enter LG Dryer diagnostic test mode: Press and hold the 'Dry Level' and 'Time Dry' buttons simultaneously for 3 seconds.
Skill Level & Repair Time
This repair is appropriate for an experienced laundromat owner or in-house technician. You should be comfortable removing service panels, reading wiring diagrams, and using a multimeter to test continuity and voltage. Plan for approximately 30 minutes of active repair time once parts are on hand.
Get AI-Powered Diagnosis
If the steps above don't resolve LG Dryer PF, run a free Service Guy AI diagnosis. Upload a photo of the error display and get an AI-generated repair plan tied to your exact LG Dryer model number, including supplier links for required parts and on-call technician escalation.