LG Dryer PS Error — Power Cord Voltage Fix

What it means

LG dryer PS is the power-cord-voltage code.
LG's exact wording: 'improper voltage with the power cord, which could be caused by the white and red wire connections being reversed on the dryer's terminal block.'
This appears most often immediately after a self-install or after the dryer has been disconnected and reconnected for moving.

Affected Models

LG DLE / DLG series electric and gas dryers
LG DLEX / DLGX TurboSteam series with steam
LG Signature and Studio series premium dryers
LG DLHC series compact heat pump dryers
LG WashTower combo units (shared dryer module)

Common Causes

White and red power cord wires installed in the wrong terminals at the dryer
Power cord installed without the neutral wire connected (3-prong cord on 4-prong outlet)
Loose terminal screws at the dryer's connection block
Damaged or pinched power cord between the wall and the dryer
Household supply not actually providing standard 240V split-phase

How to Fix It

Switch off the breaker first.

Before touching the terminal block, switch the dryer's dedicated breaker OFF at the household panel.
Confirm the dryer is dead by trying to turn it on.
Working on the terminal block with power live is a serious shock hazard.
Access the terminal block.

On LG dryers the terminal block is behind a small access cover at the bottom rear of the unit.
Remove the two or three screws holding the cover, set it aside.
You'll see three or four terminal screws with the power cord wires attached.
Check wire color positions.

LG: the typical fault is 'white and red wire connections being reversed on the dryer's terminal block.'
On a 4-prong setup: green or bare = ground, white = neutral (center), red and black = hot (outer two).
On a 3-prong: white = center, red and black = outer two.
If white is on an outer terminal and red is on the center, that's the swap.
Reseat with correct wiring.

If you found the swap, loosen the affected terminals, move the wires to their correct positions, tighten firmly.
Reinstall the access cover, switch the breaker back on, and start a short Time Dry cycle.
PS should be gone.
Call an electrician if wiring is correct.

If the terminal block is wired correctly and PS still appears, the household supply itself may be the issue — a brownout, a loose connection at the outlet, or a problem at the breaker panel.
This is electrician work, not LG service.

When to Call a Professional

If you self-installed the power cord and PS appears immediately on first use, the wires are almost certainly reversed.
Switching them back takes 10 minutes with a screwdriver — but switch the breaker off first.
If wiring is verified correct and PS persists, the household supply needs an electrician.

Frequently Asked Questions

Why don't all dryers warn about reversed wires?

Most older dryers couldn't electronically detect the difference — reversed wiring just caused odd symptoms (no heat, sometimes drum reversal) without a clear code.
LG's modern dryers explicitly check voltage at startup and display PS when the readings don't match the expected 240V split-phase pattern, which a reversed white/red causes.
It's a feature that catches install mistakes before they cause damage.