Can I fix LG code PS myself?

Start with these safe checks: Turn the dryer's breaker off for at least 10 seconds and back on. Confirm the cord is securely plugged into a grounded 240 V outlet. Rewiring the power cord at the terminal block should be done by a qualified installer or electrician with the breaker off. If PS continues, request service.

When should I call a technician for code PS?

Rewiring the power cord at the terminal block should be done by a qualified installer or electrician with the breaker off. If PS continues, request service. Unplug it or switch the breaker off before you remove any panel. Don't test or replace wiring, control boards, heating elements or motors under power. If you see scorching, smell burning, or the breaker trips again, leave it off and call a qualified appliance technician or electrician.

LG Dryer Error Code PS: Power supply wiring error

What PS means

The dryer detected improper voltage on the power cord, which can happen if the red and white wires are reversed at the terminal block.

Likely causes

Power cord wired incorrectly at installation
Outlet problem

Safe first checks

Turn the dryer's breaker off for at least 10 seconds and back on.
Confirm the cord is securely plugged into a grounded 240 V outlet.

When to stop

Rewiring the power cord at the terminal block should be done by a qualified installer or electrician with the breaker off. If PS continues, request service.

Checked against: LG USA Support: LG Dryer error code list. Codes can differ by model and year, so confirm with your owner's manual.