Step-by-Step DIY Fix Guide
- SAFETY: No electrical hazard. PF is an informational code.
- Press the Power button to clear the PF alert.
- Check whether the cycle completed — if dishes are clean and dry, the machine resumed automatically.
- If the cycle did not complete, press Start to restart a new cycle.
- If PF appears repeatedly without an obvious power outage, check that the dishwasher is plugged directly into a wall outlet (not an extension cord) and that the outlet has stable power.
- If the circuit breaker has tripped, identify what caused the overload before resetting.
If the code comes back
- PF appears repeatedly across multiple cycles with no household power outage — circuit or outlet fault suspected
What This Error Means
Error PF on your LG dishwasher means: The dishwasher experienced a power interruption mid-cycle. PF is an informational alert — the machine is telling you that the last cycle did not complete due to a power cut. The dishwasher's self-diagnostic system has detected this condition and paused the current cycle.
The most frequent cause is brief household power outage during a wash cycle. Work through the causes and fix steps below in order — most LG dishwasher errors are resolved without a service call.
Error PF is DIY-safe. No tools are required and the fix typically takes under 10 minutes. Follow all steps in sequence.
This is a mode indicator, not a hardware fault. The dishwasher is operating exactly as designed — the display is informational. Follow the steps above to return the machine to normal operating mode.
Most Likely Cause by Symptom
The LG dishwasher may stop, pause, or refuse to complete the cycle normally.
Likely cause: Brief household power outage during a wash cycle
Check first: SAFETY: No electrical hazard. PF is an informational code.
Common Causes
- Brief household power outage during a wash cycle
- Circuit breaker tripped while the dishwasher was running
- Power cord or outlet issue causing a momentary loss of power
What Not to Do
- Do not ignore PF if it repeats regularly — repeated mid-cycle power loss can leave standing water in the tub and eventually cause odors
Model and Display Variation Notes
Model-family notes
- LG dishwasher display wording and code formats can vary by series.
- If your model behaves differently, check the owner manual before trying any deeper maintenance step.
Display and panel differences
- Panel wording can vary by series, so confirm the exact code pattern before buying parts.
Parts, Tools and Service Options
Manual and model check
Check your exact model and manual before ordering any LG dishwasher parts.
This section stays model-first because exact manual and parts matching matters more than a generic replacement suggestion here.
When Not to Keep Troubleshooting
PF appears repeatedly across multiple cycles with no household power outage — circuit or outlet fault suspected
How to Prevent It Recurring
- Plug the dishwasher directly into a dedicated wall outlet — extension cords cause intermittent power loss under load
Related Error Codes
Extra notes
- This page is based on LG support material and stays conservative where model-specific guidance may vary.
- The goal is to help you identify safe first checks before you move into parts, service, or model-specific manual lookup.
Source and model notes
Last reviewed: 2026-04-08
Based on: Based on LG support material and edited into consumer-safe guidance for the exact code family on this page.
Model coverage note: LG dishwasher code meanings can vary by series, control panel, and model family, so use this page as a safe starting point rather than a replacement for the model-specific manual.
Important: FixThisError is an independent guide, not the manufacturer. Use your model-specific manual when the panel wording or behavior differs.
Always disconnect power before inspecting appliances. If unsure, contact a licensed appliance technician.