FE
LG Dryer
Severity: ModerateWhat Does This Error Mean?
The FE error means your LG dryer detected an abnormal power frequency from the wall outlet. Electricity in North America runs at 60 Hz — if the frequency deviates, the dryer shuts down. This is usually caused by an unstable power supply or a circuit problem. It can also indicate a faulty internal frequency sensor on the control board.
Affected Models
- DLGX5002V
- DLE7300VE
- DLHC1455V
- DLEX3700W
- Most LG electric dryer models
Common Causes
- Unstable or fluctuating power supply from the utility grid
- Power surge causing a temporary frequency spike
- Dryer sharing a circuit with other high-draw appliances causing load fluctuations
- Faulty wall outlet not providing clean, stable power
- Internal frequency detection circuit on the control board has failed
How to Fix It
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Unplug the dryer from the wall outlet.
Do not attempt to run the dryer while a power frequency error is active. Abnormal power can damage the motor and control board.
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Check your home's circuit breaker panel.
Look for any tripped breakers related to the laundry room. Reset any tripped breakers before continuing.
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Make sure the dryer is on a dedicated circuit.
Electric dryers typically require a dedicated 240V/30-amp circuit. Sharing with other appliances can cause voltage and frequency fluctuations.
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Wait 10 minutes, then plug the dryer back in.
This gives time for any power fluctuations to stabilize. Plug directly into the wall outlet — never use an extension cord with a dryer.
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Run a short cycle and monitor for the FE error.
If the FE error returns on a fresh cycle, have an electrician test the outlet and circuit. If the outlet checks out, a technician needs to inspect the control board.
When to Call a Professional
If the error persists after checking the outlet and circuit, call a technician. Control board repairs are not DIY-friendly and require professional tools. LG support or a licensed appliance technician can diagnose the power circuit. Expect repair costs of $150–$350 for a control board issue.
Frequently Asked Questions
What is power frequency and why does it matter?
Power frequency is how many times per second the electrical current reverses direction. In North America it's 60 Hz — meaning 60 times per second. Appliances are designed to work at this exact frequency. If the frequency shifts significantly, motors and electronics can malfunction or be damaged.
Can a power outage cause the FE error?
Yes — the moment power is restored after an outage, there can be brief frequency irregularities. This can trigger the FE error. Unplug the dryer during an outage if you know one is coming. Once stable power is restored, the error usually clears after a reset.
Is the FE error common on LG dryers?
It's less common than errors like d80 or dE. Most homes have stable enough power that FE errors are rare. If you see it frequently, the issue is likely with your home's electrical supply, not the dryer itself. Have an electrician inspect your laundry room circuit.