What PS (Dryer Voltage Error) Means
PS on a dryer indicates improper voltage at the power cord, which LG's dryer Help Library article says could be caused by the white and red wire connections being reversed on the dryer's terminal block.
Common Causes of PS (Dryer Voltage Error)
- Power cord wires reversed at the dryer's terminal block
- Power cord not properly grounded or matched to the dryer's rating plate
- Circuit breaker issue
🔧 One Safe Check You Can Try
Check the power cord installation at the back of the dryer against LG's wiring diagram for your cord type (3-wire or 4-wire) and confirm it's plugged into a properly grounded 240V outlet; reset the circuit breaker for at least 10 seconds if the connection looks correct.
⚠ Why You Shouldn't Go Further Than That
- Reversed wiring at a 240V terminal block is an electrical safety issue - if you're not confident checking or correcting it yourself, this is worth having a licensed electrician or appliance technician verify rather than guessing at the connections.
- Running the dryer repeatedly with a genuine wiring fault at the terminal block risks damage to the heater or other components beyond just the immediate no-heat symptom.
Opening a panel to inspect or repair something yourself doesn't automatically cancel your manufacturer's warranty — but it can risk accidental damage, and some manufacturers do have specific service conditions. Check your product's warranty terms, or ask us, before deciding.