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Error code reference

LG Range Error Code PF

Power Failure indication

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What the PF error code actually means

The PF code simply means your LG range lost power at some point, either from a brief outage, a tripped breaker, or being unplugged, and has now come back on. It is not a malfunction. You can clear it by pressing the CLEAR/OFF button, and then reset your clock if needed.

Diagnostic procedure

The full PF procedure

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MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Press the CLEAR/OFF key on the oven controls to clear the message; if display shows a flashing clock instead, press the Clock key and reset the time or press any key to stop flashing.
More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
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Most common causes of PF

Ranked by how often they cause this code
  1. 1Utility power outage or momentary voltage dip
  2. 2Tripped or reset circuit breaker
  3. 3Range was unplugged or first installed
  4. 4Loose or intermittent power connection
  5. 5Failing electronic control board

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Questions people ask about PF

What does PF mean on a LG range?
PF stands for Power Failure on an LG range. It is an informational indicator that the control board detected a loss of power and has since been restored. It appears after outages, breaker trips, or when the range is first plugged in. It does not indicate a component failure in most cases.
Is the PF code on my LG range a safety concern?
The PF code itself is not a safety hazard. It simply means the range lost power temporarily and is now operational again. However, if the power loss was caused by a tripped breaker or a wiring issue, you should investigate the root cause of that electrical problem before continuing to use the appliance.
How much does it cost to fix a PF code on an LG range?
In the vast majority of cases, the PF code costs nothing to fix since it clears with a button press after a normal power interruption. If the code is caused by a failing control board, replacement board costs typically range from $150 to $350 for parts, with additional labor costs if a technician is needed.
How do I clear the PF code on my LG range?
Press the CLEAR/OFF key on the oven control panel to dismiss the PF message. If the clock display is flashing after clearing, press the Clock key and enter the current time, or press any key to stop the flashing without setting the time. No tools or disassembly are required.
Will resetting the range clear the PF code permanently?
Yes, pressing CLEAR/OFF will clear the PF code immediately. The code will not return unless another power interruption occurs. If PF keeps coming back without any obvious outage, check for a loose power cord, a faulty outlet, or a control board issue.

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