What does LG Dryer PS Error Code - Causes & Fix mean?

PS means the dryer sees improper voltage at the power cord, often reversed wires. The common fix is correcting the terminal block connections.

How do I fix LG Dryer PS Error Code - Causes & Fix?

Follow the step-by-step diagnosis below. The most likely fix is identified by checking power, sensor resistance, and control-board signals in order — using a multimeter and the part numbers documented in the parts reference table.

Can I keep running the equipment with this fault active?

Generally no. Faults on Appliance units are emitted when a sensor, safety, or control circuit is outside its operating envelope. Running through an active fault risks compressor, heater, or control-board damage. Diagnose and clear the fault first.

What part is most commonly replaced for LG Dryer PS Error Code - Causes & Fix?

The most frequently replaced parts for LG Dryer PS Error Code - Causes & Fix are listed in the Parts Reference section of this guide with OEM part numbers and typical price ranges. Check the table for direct replacements.

Is LG Dryer PS Error Code - Causes & Fix a DIY repair or do I need a technician?

Sensor swaps, fan motor replacements, and condenser cleaning are typical DIY-level repairs. Anything involving refrigerant, gas, or high-voltage (>240V) work requires a licensed technician for both safety and code-compliance reasons.

LG Dryer PS Error Code - Causes & Fix

LG Dryer PS Error Code — What It Means

PS is a power supply error. The dryer detects voltage that does not match what it expects, which often traces to the power cord wiring at the terminal block on the back of the unit.

A frequent cause is the white and red wires reversed during a cord install on a 240 volt electric dryer.

Jump to Fix

Common Causes

Reversed cord wires The white neutral and red hot wires swapped at the terminal block send the wrong voltage.
Loose terminal connection A bolt that is not tight at the terminal block drops or fluctuates a leg of power.
Wrong outlet voltage An outlet that is not a true 240 volt circuit feeds the dryer improper voltage.
Damaged power cord A frayed or burnt cord interrupts one of the supply legs.
Tripped half breaker One side of a double breaker tripped leaves the dryer on partial power.

Step-by-Step Fix

Unplug the dryer before touching the terminal block on the back.
Open the terminal cover and check the cord wiring against the diagram on the label.
Correct any reversed wires so the white and red leads sit on the right terminals.
Tighten each terminal bolt so no connection is loose.
Inspect the cord for burnt or frayed spots and replace it if damaged.
Reset the breaker by switching the dryer circuit fully off for ten seconds, then on.
Plug in and run a cycle to confirm PS does not return.

Parts Often Needed

Part	Notes
LG dryer power cord	Amazon \| Use a 3-wire or 4-wire 240 volt cord that matches your outlet type.
LG dryer terminal block	Amazon \| Replace if the block is cracked or the posts are scorched.
LG dryer strain relief bracket	Amazon \| Secures the cord where it enters the cabinet.

When to Call a Pro

If the cord is wired correctly and tight but the outlet does not read a proper 240 volts, call a licensed electrician to check the circuit. Scorched terminals or a melted block also need professional attention before you run the dryer.