nP
LG Dryer
Severity: CriticalWhat Does This Error Mean?
The nP error means your LG dryer is not receiving proper power to the motor. The dryer detects power but cannot run the drum motor. This is usually an electrical supply problem, not a motor failure.
Affected Models
- DLEX3900B
- DLE7300WE
- DLGX4201B
- Most LG electric dryers (240V)
Common Causes
- Only one leg of the 240V circuit is working (half power)
- Tripped or partially tripped double circuit breaker
- Loose connection at the dryer's power terminal block
- Damaged or worn power cord with a broken conductor
- Faulty wall outlet not delivering full 240V power
How to Fix It
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Go to your electrical panel and check the dryer's double circuit breaker.
It should be a large double breaker (usually 30 amps). Flip it fully off, then back on.
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Unplug the dryer and inspect the power cord for damage.
Look for burn marks, frayed wires, or bent prongs on the plug.
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Make sure the power cord is firmly and fully plugged into the wall outlet.
240V dryer plugs must be pushed in completely to make a good connection.
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Plug the dryer back in and try starting a cycle.
If the nP error clears, monitor it for the next few loads.
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If the error returns, have an electrician test the wall outlet for proper 240V output.
The outlet should read 240V across both hot legs. If not, a wiring issue exists.
When to Call a Professional
If resetting the breaker does not fix the issue, call a licensed electrician. Working with 240V wiring is dangerous and should not be done by homeowners. An electrician can test the outlet voltage and wiring connections. Diagnostic visits typically cost $75–$150.
Frequently Asked Questions
What does 'no power to motor' mean on an LG dryer?
It does not mean the motor is broken. It means the motor is not receiving the full electrical power it needs. Electric dryers need 240 volts to run the motor. If only 120 volts is reaching the dryer, the display lights up but the motor cannot spin.
Can a tripped breaker cause the nP error?
Yes — this is the most common cause. Electric dryers use a double circuit breaker. If one side trips, the dryer gets half power. The display and controls may work, but the motor will not run.
Is the nP error dangerous?
The error itself is a safety feature — it prevents the dryer from running improperly. However, the underlying electrical issue could be dangerous. Loose wiring or a faulty outlet can cause overheating and fires. Have an electrician inspect the circuit if the breaker keeps tripping.