LG PF
Power Failure
Low severityVerified Diagnostic Guide
SeverityLow
What Your Machine Is Actually Telling You
PF stands for Power Failure. The machine was running a cycle when electricity was interrupted — either a power outage, tripped breaker, or the plug was pulled.
PF is informational, not an error. Your washer is simply telling you that the previous cycle was interrupted and asking what you want to do.
Common causes:
1. Power outage (40%) — municipal power interruption.
2. Tripped breaker (25%) — circuit overloaded.
3. Loose plug (15%) — plug fell out of outlet.
4. GFCI tripped (10%) — ground fault detected.
5. Faulty outlet (5%) — intermittent contact.
6. Internal power issue (5%) — washer power board.
PF is informational, not an error. Your washer is simply telling you that the previous cycle was interrupted and asking what you want to do.
Common causes:
1. Power outage (40%) — municipal power interruption.
2. Tripped breaker (25%) — circuit overloaded.
3. Loose plug (15%) — plug fell out of outlet.
4. GFCI tripped (10%) — ground fault detected.
5. Faulty outlet (5%) — intermittent contact.
6. Internal power issue (5%) — washer power board.
What You're Probably Seeing Right Now
- PF on display — machine stopped mid-cycle.
- Power was restored and PF appeared.
- Clothes are wet/soapy inside.
- You heard a click then PF — breaker tripped.
DIY Fix — From Easiest to Hardest
1
Press Start to Resume (5 seconds — Fixes 95%)
1. Simply press **Start/Pause.**
2. The cycle resumes from where it stopped.
3. Or press Power Off, then select a new cycle.
2. The cycle resumes from where it stopped.
3. Or press Power Off, then select a new cycle.
2
Check Breaker (2 minutes)
If PF was caused by breaker:
1. Go to breaker panel.
2. Find the washer's breaker.
3. Reset it (flip off then on).
4. If it trips again immediately: electrical issue.
5. Washer should be on a **dedicated 15A or 20A circuit.**
1. Go to breaker panel.
2. Find the washer's breaker.
3. Reset it (flip off then on).
4. If it trips again immediately: electrical issue.
5. Washer should be on a **dedicated 15A or 20A circuit.**
3
Check GFCI Outlet (1 minute)
If outlet has a GFCI (Test/Reset buttons):
1. Press the **Reset** button.
2. Try the washer again.
3. If it trips during heating: heating element may have a ground fault.
1. Press the **Reset** button.
2. Try the washer again.
3. If it trips during heating: heating element may have a ground fault.
4
Check Plug Connection (2 minutes)
1. Make sure plug is firmly in the outlet.
2. If outlet is loose: replace outlet ($5-10).
3. If plug prongs are bent: straighten carefully.
4. Never use extension cords with washers.
2. If outlet is loose: replace outlet ($5-10).
3. If plug prongs are bent: straighten carefully.
4. Never use extension cords with washers.
5
If PF Repeats Without Power Issues
If PF shows repeatedly and there's no power outage:
1. Check the washer's power cord for damage.
2. May be an internal power board issue.
3. Check for loose wires inside the machine.
4. Power board replacement: $80-200.
1. Check the washer's power cord for damage.
2. May be an internal power board issue.
3. Check for loose wires inside the machine.
4. Power board replacement: $80-200.
When to Call a Pro
- •Breaker keeps tripping — electrician: $80-$250.
- •Internal power board — $120-$300 installed.
- •Heating element ground fault — $100-$250.
What It'll Cost You
Swipe left to see full table
Frequently Asked Questions: Error PF
What does error code PF mean on a LG washing machine?
Power supply was interrupted during the cycle.
What usually causes the LG PF error?
The primary cause is: Power outage, loose plug, or tripped breaker.. It may also be caused by temporary sensor misreadings or wiring connection issues.
How do I reset and clear error PF?
Resume the cycle once power is stable. Check plug seating. If the error persists, unplug the washer from electrical power for 10 minutes to perform a complete logic board reset.
Is it safe to continue using the machine with error PF?
This code has a Low severity level. While the machine might run, resolving the issue early prevents long-term wear on internal parts.