ErrorCodeDoctor
LG · Dryer

LG Dryer nP error code

Difficulty: Medium · Cost: $0–$200 · Duration: 10–15m

The nP error means your LG dryer cannot detect any electrical current reaching the heating element. This is most commonly caused by a problem with the home's electrical supply rather than the dryer itself — typically a tripped circuit breaker or insufficient voltage at the wall outlet. LG dryers require a dedicated 240V outlet to operate the heater correctly. If the circuit breaker reset and outlet checks do not resolve it a licensed electrician should inspect the home wiring before calling a dryer technician.

Common causes

  • Power cord is not securely plugged into the wall outlet
  • One leg of the 240V circuit has tripped at the home's main circuit breaker
  • Home outlet is not supplying the correct 240V required for the dryer heater
  • Power surge caused a fault in the circuit breaker
  • Dryer is not connected to a grounded 240V outlet matching the rating plate

How to fix it

  1. 1

    Make sure the power cord is firmly plugged into a grounded 240V outlet matching the dryer's rating plate

  2. 2

    Go to the home's main electrical panel and turn OFF the dryer's circuit breaker for at least 10 seconds

  3. 3

    Turn the circuit breaker back ON and check if the nP error has cleared

  4. 4

    If nP persists the home outlet may not be supplying the correct voltage — contact a licensed electrician to inspect and test the outlet

  5. 5

    If the outlet checks out correctly and nP still shows the dryer itself will need a professional repair service

Related LG Dryer error codes

1

d75

The exhaust airflow is 75% restricted — the vent system needs cleaning

easy
2

d80

The exhaust airflow is 80% restricted — the vent system needs cleaning or inspection

medium
3

d90

The exhaust airflow is 90% restricted — urgent cleaning required

medium
4

d95

The exhaust airflow is 95% restricted — stop using the dryer immediately

hard

nP error — frequently asked questions

What does the nP error mean on a LG dryer?

No electrical current detected at the heater — likely a home wiring issue

What causes the nP error?

The nP error is usually caused by: Power cord is not securely plugged into the wall outlet; One leg of the 240V circuit has tripped at the home's main circuit breaker; Home outlet is not supplying the correct 240V required for the dryer heater; Power surge caused a fault in the circuit breaker; Dryer is not connected to a grounded 240V outlet matching the rating plate.

Can I fix the nP error myself?

It's possible for a moderately handy person, but budget 10–15m and expect some disassembly.

How much does it cost to fix the nP error?

Fixing the nP error on a LG dryer typically costs $0–$200, depending on parts and whether you do it yourself or hire a technician.

Is it safe to keep using my dryer with the nP error?

In most cases yes, but it's best to address the nP error soon — see the fix steps below to resolve it.