PF
LG Dryer
Severity: MinorWhat Does This Error Mean?
The PF error on an LG dryer stands for Power Failure. It means the dryer lost power in the middle of a cycle — usually from a brief power outage, a tripped circuit breaker, or someone accidentally unplugging the dryer. Your laundry is still inside and the cycle did not finish.
Affected Models
- DLEX3900W
- DLE3500W
- DLGX5001V
- DLEX7900VE
- All LG dryer models
Common Causes
- A power outage or brownout interrupted the drying cycle
- The circuit breaker for the dryer tripped during the cycle
- The power cord was accidentally pulled out of the wall outlet
- A loose connection in the wall outlet or power cord caused a brief loss of power
- A home GFCI outlet tripped and cut power to the dryer
How to Fix It
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Press the Start/Pause button to acknowledge the PF error.
On most LG dryers, pressing Start will restart the cycle from where it left off.
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Check your home's electrical panel for a tripped circuit breaker.
A tripped breaker will be in the middle position — flip it fully off, then back on.
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Make sure the dryer power cord is firmly plugged into the wall outlet.
Also check that the outlet itself is working by plugging in a lamp or phone charger.
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If the dryer is plugged into a power strip or GFCI outlet, check that it has not tripped.
Electric dryers should be plugged directly into a dedicated 240V wall outlet — not a power strip.
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Restart the drying cycle and monitor it for a few minutes.
If PF appears again without any power outage, the wall outlet or household wiring needs inspection by an electrician.
When to Call a Professional
The PF error itself is not a fault — it is just a notification that power was lost. If the PF error keeps appearing even when there is no obvious power outage, call an electrician. A faulty wall outlet, loose wiring, or a shared circuit that is overloaded can cause recurring power interruptions. For wiring and electrical issues, always contact a licensed electrician — not an appliance technician.
Frequently Asked Questions
Will my LG dryer resume the cycle after a PF error?
On most LG dryer models, pressing Start after a PF error will resume the cycle from where it stopped. The dryer remembers how much time was left. Your laundry is safe inside the drum while the error is displayed.
Why does my LG dryer keep showing PF even with no power outage?
If PF keeps appearing randomly, the problem is likely with your home electrical supply. Possible causes include a loose wall outlet, an overloaded circuit, or fluctuating voltage. An electrician can test the outlet voltage and check the wiring to your dryer. Do not ignore recurring PF errors — inconsistent power can damage the dryer's control board over time.
Is the PF error dangerous?
No — PF is purely informational. It just tells you the dryer noticed the power cut and stopped safely. There is no damage to the dryer from a PF error. Simply restart the cycle and your dryer will continue normally.