LG dryer nP / PS: home electrical supply error

LG says nP means no current is detected at the heater and PS indicates improper voltage or power-cord wiring.

What this guide covers

Error codes: nP, PS

This guide follows a structured decision tree built from manufacturer troubleshooting information. It does not assume that the most commonly replaced part is the failed part, and it does not show an exact-fit replacement part unless model compatibility has been independently verified.

Continue this exact diagnostic

Safe troubleshooting sequence

This reviewed path begins with a direct owner-safe action or status check rather than a branching question. Follow the step below, then use the interactive diagnostic if the condition persists.

1. Turn the breaker off before inspecting the plug or visible cordDo not open the terminal block energized.
2. Confirm the cord is fully seated and the dedicated supply matches the rating plateUse a qualified electrician for voltage or wiring checks.
3. If the supply is correct and the code remains, arrange dryer serviceDo not keep resetting the code.

Reviewed outcomes

When professional diagnosis is the safer next step

These codes point to the home electrical supply or cord installation rather than an airflow issue.

Appliance Verdict stops before energized electrical testing, gas-system work, sealed-system work, and other checks that can create unnecessary risk. A technician can use the model, issue, and completed checks from the interactive diagnostic as a starting point.

Repair or replace?

A diagnosis and a repair decision are different questions. Once you have a real repair quote, compare the total repair cost with the all-in price of a comparable replacement. Warranty or protection-plan coverage, appliance age, reliability history, efficiency, and likely future repairs can all matter. Appliance Verdict’s interactive result includes a transparent cost comparison rather than a black-box replacement recommendation.

Manufacturer sources

LG Support

Dataset reviewed through 2026-09-11. Appliance Verdict is independent and is not endorsed by the manufacturers cited. Always follow the exact owner or service documentation for your model.

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