- Appliances
- Dryers
PS
LG PS on dryer: improper voltage in the power cord
Risk level
Medium
Proceed carefully and stop if the check is unclear.
Urgency
High
Quick answer
Your LG dryer shows PS because it detects improper voltage in the power cord. Check that it is plugged into a grounded outlet and switch its breaker off for 10 seconds. If it was just installed, call the installer to check the cord.
Safety first
Stop and check this first
- Do not open the terminal block cover to swap wires yourself, even if you have seen installation videos. It is mains voltage: the installer or an electrician makes that connection with the breaker off.
Safe checks you can perform
- Plug and grounded outlet
- Breaker off for 10 seconds
- Call the installer or electrician
Leave these tasks to a qualified professional
- Do not attempt this professional task: Cord connection check at the terminal block
- Do not attempt this professional task: Outlet voltage measurement
What a technician must be able to justify
A technician is coming
These are the steps they must carry out and show you. Tick them as they work: if steps are skipped, do not accept a part swap.
These are not instructions for opening or handling the equipment yourself. They are the checks that should support a technical conclusion.
Cord connection check at the terminal block
What they doThe installer or an electrician, with the breaker off, checks that each power cord wire sits on the right terminal according to the model manual.
They must show youa photo of the terminal block before and after the fix.
In writingwhich connection was wrong and how it was left.
Outlet voltage measurement
What they doAn electrician measures the outlet voltage and compares it with the dryer rating plate.
They must show youthe measured value against the rating plate.
In writingthe measurement and a drying test with heat and no PS.
Before accepting a part or repair
Nothing has been shown yet. Do not accept a part swap based on the code alone.
Checks and evidence, step by step
Follow the documented order. An error code identifies the affected system, but it does not prove by itself which part has failed.
- 1
Plug and grounded outlet
No special tools
Procedure
- Who:
- you.
- How:
- without opening anything, check that the plug is fully in a grounded outlet that suits the rating plate, as LG instructs.
- Result that matters:
- a plug firmly in the right outlet.
- If it was loose and PS clears once it is in:
- that was the cause.
- If it was fine:
- move on to the breaker reset.
- Evidence to keep:
- a photo of the rating plate.
Evidence: LG USA dryer error code list
- 2
Breaker off for 10 seconds
No special tools
Procedure
- Who:
- you.
- How:
- switch the dryer breaker off at the electrical box for at least 10 seconds and back on, as LG instructs.
- Result that matters:
- whether the dryer heats without showing PS.
- If it clears:
- it was temporary; watch whether it repeats.
- If PS stays:
- leave the dryer unplugged and call the installer or an electrician.
- Evidence to keep:
- a note of the date and the result.
Evidence: LG USA dryer error code list
- 3
Call the installer or electrician
No special tools
Procedure
- Who:
- you, only to make the call.
- How:
- if the dryer was installed recently, call the installer to check the cord installation and outlet; otherwise call an electrician, as LG instructs.
- Result that matters:
- a professional checks the terminal block and the outlet.
- If the installation is recent:
- the cord connection is the first thing to check.
- If it is old:
- the outlet voltage comes first.
- Evidence to keep:
- the installation date and photos of the code.
Evidence: LG USA dryer error code list
Where this code applies
A code is meaningful only inside the right product and version context.
Primary scope
- System
- Appliances
- Brand
- LG
- Product type
- Dryers
Known code variants
- código PS secadora LG
- error PS secadora LG
- LG dryer PS code
- LG dryer PS error
- LG PS dryer
- LG PS secadora
What it means
LG explains that PS indicates improper voltage within the power cord, which could be caused by the white and red wires being reversed on the dryer terminal block. Its steps are to check the cord is plugged into a grounded outlet matching the rating plate (240 V on the US models it documents), switch the breaker off for at least 10 seconds and have a licensed electrician check the outlet. If the dryer is new, LG asks the installer to check the cord and outlet. The code alone does not prove an internal fault.
Warnings and stop conditions
- Higheditorial warning
Do not open the terminal block cover to swap wires yourself, even if you have seen installation videos. It is mains voltage: the installer or an electrician makes that connection with the breaker off.
Evidence: LG USA dryer error code list
Symptoms and causes
Probable causes · in order
- Wires reversed on the terminal blockCommon
LG names the white and red wires reversed on the terminal block. It typically shows up right after installing or changing the power cord.
Evidence: LG USA dryer error code list
- Wrong voltage at the outletPossible
The installation is old and the code appears suddenly. LG asks an electrician to confirm the outlet supplies the correct voltage.
Evidence: LG USA dryer error code list
- Dryer faultPossible
Cord, outlet and breaker have been checked by a professional and the dryer still does not heat. LG then refers you to repair.
Evidence: LG USA dryer error code list
Virtual technician
Does PS still appear after these checks?
Answer a few questions to narrow down the likely cause and the safest next action. Guidance only - it never replaces a professional.
Sources and technical references
- 1
LG Electronics · 2025 · official_doc
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