LG Dryer PS — What It Means & How to Fix It
PS points to improper voltage reaching an LG dryer's control — classically because the white and red wires were crossed on the terminal block when the cord was installed — so it's an installation and wiring issue for a professional rather than a part that has failed.
What this code means
The dryer checks that its incoming power is wired correctly, and PS is logged when the voltage looks wrong at the terminal block. The textbook cause is a power cord fitted with the white (neutral) and red (hot) wires in the wrong positions, which can happen after a cord swap or a new install. Because the fix means working on the mains terminal block, it belongs to an electrician or installer.
PS is a wiring and installation code, so it most often appears right after a dryer is moved, reconnected, or fitted with a new cord. Confirm the outlet and cord are the correct type first; correcting the terminal-block wiring itself is a job for a professional, not a DIY step.
Most likely causes
| Cause | How likely | DIY-fixable? |
|---|---|---|
| White and red wires reversed on the terminal block | Very common | No — electrician/installer job |
| Power cord installed incorrectly after a move or swap | Common | No — electrician/installer job |
| Wrong or miswired outlet supplying the dryer | Occasional | No — electrician job |
| Loose terminal-block connections | Occasional | No — electrician/installer job |
What you can try yourself
- If the dryer was just installed, moved, or fitted with a new cord, treat the wiring as the prime suspect — PS almost always traces to that work.
- Switch the dryer's breaker OFF and confirm the outlet type and cord match the dryer's 240-volt rating plate.
- Do not rewire the terminal block yourself — the crossed white and red connection that causes PS is live mains wiring.
- Have a licensed electrician or appliance installer open the terminal-block cover, verify the black, red, white, and ground wires sit on their correct posts, and tighten them properly.
- Once the wiring is corrected, restore power and run a cycle to confirm PS is gone.
When to call a technician
- PS appears right after installation, a move, or a cord change.
- You're not certain the terminal-block wiring is correct.
- The outlet or cord is the wrong type, or the connections look loose or scorched.
Typical professional repair cost: Having an electrician or installer correct the cord and terminal-block wiring typically runs $100–$250.
Frequently asked questions
What causes a PS code on an LG dryer?
PS means the dryer is seeing improper voltage, most often because the white and red wires were reversed on the terminal block when the power cord was installed. It usually shows up right after a new install, a move, or a cord swap. An electrician or installer should correct the wiring.
Is it safe to fix a PS code myself?
Reseating the plug and confirming the outlet type are fine, but the actual cause — crossed wires on the terminal block — is live 240-volt mains wiring, which isn't a safe DIY repair. Have a licensed electrician or appliance installer verify and correct the terminal-block connections.
Why did my LG dryer show PS after I moved it?
Moving a dryer often means reconnecting or reinstalling the power cord, and PS points to that cord being wired wrong — typically the white and red leads swapped on the terminal block. Have the installation checked and corrected by a professional before running the dryer.
Related LG codes
- LG Dryer d80 d80 is LG's Flow Sense system telling you the exhaust duct is about 75–80% restricted: the dryer keeps running but dries slowly, so treat it as an early warning to clean the lint filter and the full vent line before the blockage gets worse.
- LG Dryer d90 d90 — and the more severe d95 — is LG's Flow Sense system reacting to a badly blocked exhaust of 90% or more by cooling the dryer down and stopping the cycle, so unlike the milder d80 you have to clear the vent before it will run properly again.
- LG Dryer dE dE tells you an LG dryer can't confirm its door is latched shut, so it won't spin the drum — usually because laundry is caught in the seal, the door wasn't pushed firmly enough, or the door switch is worn.
- LG Dryer tE1 tE1, and the related tE3, means an LG dryer has detected a problem with its thermistor — the sensor that tracks drum temperature — so a factory reset clears a one-off glitch, but a code that keeps returning points to a failing sensor for a technician.
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