LG Dishwasher PF Error Code: What It Means & What to Check
Q: My LG dishwasher is showing PF. What does that mean?
A: On many LG dishwashers, PF usually means a power failure / power interruption. This commonly happens after a brief outage, breaker trip, or momentary voltage interruption. In many cases, it can be cleared and the dishwasher will work normally again.
This guide covers homeowner-safe checks you can try first, what PF usually means, and when it’s time to call our friendly technicians in yellow.
What You May Notice
- PF appears on the display after a cycle stopped
- Dishwasher turns off mid-cycle, then comes back on
- Controls respond, but the cycle was interrupted
- PF clears after pressing a button, but may return later
Safety First
- If you suspect a breaker issue, use caution at the electrical panel.
- Do not open wiring compartments or attempt electrical repairs unless trained.
- If there was a storm or repeated outages, wait until power is stable before restarting a cycle.
Quick Checks You Can Try First
1) Ask About Recent Power Outages or Flickers
PF often appears after a known outage, storm flicker, or brief power interruption. If the lights blinked or another appliance reset, PF is likely just reporting that event.
2) Press a Key to Clear the Code
Many models allow you to clear PF by pressing a button/key on the control panel and then restarting the cycle.
3) Restart the Dishwasher
Run a new cycle and monitor operation. If PF does not return, it was likely a one-time interruption.
4) Check the Breaker (If Needed)
If the dishwasher is not responding normally, check the breaker for a partial trip and reset it fully if needed (off, then back on).
Common Causes (What PF Usually Points To)
- Power outage or utility interruption
- Brief voltage drop / flicker
- Breaker trip or partial trip
- Loose power connection (less common, if PF happens often)
Likely Parts a Technician May Check
- Usually none if PF happened once after a known outage
- Power supply connection / terminal connections (if PF is frequent)
- Main control board (less common, if power is stable but PF repeats)
When to Call Beacon
If PF appears repeatedly without any known outages, storms, or breaker issues, the dishwasher may have a power supply connection problem or control issue that needs diagnosis.
Beacon Services & Appliances can help diagnose LG dishwasher power/interruption issues and explain the next step clearly. Request service here: /request-service or call (352) 726-7530.
You can also visit www.BeaconSaves.com for local help.
Content Update & Editorial Review
This article was reviewed and updated on by Chris for accuracy, clarity, and homeowner-safe troubleshooting guidance.
Frequently Asked Questions
Does PF mean my LG dishwasher is broken?
Usually no. PF commonly means the dishwasher detected a power interruption, not necessarily a failed part.
How do I clear PF on an LG dishwasher?
Many models let you clear PF by pressing a key/button on the control panel, then restarting the cycle.
What should I check first when PF appears?
Check whether there was a recent outage, storm, flicker, or breaker trip. PF often appears after a brief power event.
Should I reset the breaker for a PF code?
If the dishwasher is acting unresponsive or you suspect a breaker issue, a proper breaker reset is a reasonable homeowner-safe step.
Why does PF keep coming back even when the power seems fine?
Repeated PF codes can sometimes point to a loose power connection, breaker issue, or a control problem. If it keeps happening, a technician should diagnose it.
When should I call for service for PF?
Call for service if PF happens frequently without known outages or if the dishwasher keeps shutting down during cycles.
📍 Contact Beacon Services & Appliances
📞 (352) 726-7530
🌐 www.BeaconSaves.com.