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Source-backed error-code guide

Reviewed

LG Dryer PS Error Code

PS points to a supply-voltage or power-cord installation context. The official page discusses terminal-block wiring, but that high-voltage work belongs with the installer or a licensed electrician, not a homeowner check.

Applies to LG electric dryer

What the appliance detected

Detected condition

The dryer detected improper voltage associated with the power cord.

What may contribute

Possible causes

  • Improper supply voltage.
  • Incorrect power-cord installation.
  • Reversed white and red connections at the dryer terminal block.
  • An appliance concern if a qualified professional confirms the installation and supply are correct but the dryer still does not heat.

Start conservatively

Safe preliminary checks

Work in order and stop whenever a step is not supported by the documentation for your model.

  1. Record the code, model, and installation context

    • Photograph or write down PS before resetting the breaker.
    • Confirm the model, rating plate, owner manual, and whether the dryer was recently installed or its cord was changed.

  2. Stop for electrical warning signs

    • Stop using the dryer for sparking, a burning odor, scorching, unusual heat at the plug or outlet, a loose outlet, visible cord damage, or another electrical warning sign.
    • Switch off the circuit from a safe location and contact a licensed electrician or the installer.

  3. Check only the external plug

    • Without opening or touching any electrical connection, confirm that an undamaged power cord is fully inserted into the grounded outlet specified by the dryer rating plate.
    • Do not remove a cover or attempt to verify terminal-block wiring yourself.

  4. Reset the breaker once and arrange qualified checks

    • Switch the dryer circuit breaker fully off for at least ten seconds, then restore it.
    • For a recent installation, have the installer check the power-cord installation and wall outlet. Have supplied voltage checked by a licensed electrician when needed.

Actions not recommended

  • Do not open the outlet, junction box, dryer panel, terminal block, or power-cord connection.
  • Do not test live voltage, continuity, resistance, or wiring, and do not reverse or reconnect terminal-block conductors yourself.
  • Do not repeatedly reset the breaker or treat PS as proof that an internal dryer component has failed.

When to stop and request service

  • Contact the installer for a newly installed dryer or recently changed cord, and use a licensed electrician for outlet, supply-voltage, or household-wiring checks.
  • Request appliance service if qualified checks confirm the installation and supply are correct but PS remains or the dryer still does not heat.
  • Stop immediately for sparking, burning odor, scorching, unusual heat, visible damage, or another electrical hazard.

Documented source

Official information reviewed

Our summary is based on manufacturer support material and stays within the limits of that material.

Source reviewed by Appliance Help HQ: August 12, 2026.

Appliance Help HQ is an independent informational site and is not affiliated with or endorsed by LG.

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