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LG·dryermedium severity
LG Error Code PS
Power supply error
Common Causes
- 1Power board issue
Electrical supply issues require a licensed electrician. A loose 240V connection can cause arcing that damages the outlet, the dryer, and creates a fire risk. Do not repeatedly reset a tripped dryer breaker without investigation.
Step-by-Step Troubleshooting
- 1
Check the electrical outlet with a voltmeter — LG electric dryers require 240V (two 120V legs); if one leg is lost, the dryer displays PS
- 2
Inspect the dryer power cord prongs for burn marks or discoloration at the outlet connection — a loose prong causes arcing and voltage drop
- 3
Check the home circuit breaker panel — a dryer breaker is a double-pole 30A breaker; if one pole has tripped while the other remains on, you get half voltage
- 4
Reset both poles of the dryer breaker by switching fully off then on — some breakers trip to a middle position that is not visually obvious
- 5
If voltage at the outlet tests correctly at 240V, the internal power supply board in the dryer may have a failed rectifier or capacitor
Pro Diagnostic Tip
California older homes (pre-1990) may have aluminum wiring at the dryer outlet which expands/contracts with load cycling, creating loose connections. If PS appears intermittently during high-heat cycles, have an electrician inspect the outlet wiring for thermal damage.
You Might Also Notice
- •Dryer drum turns but no heat
- •Display dim or flickering
- •Dryer trips breaker when started
- •Burning smell at wall outlet
Parts, Cost & Difficulty
Repair Difficulty
Hard — Advanced Skills RequiredEstimated Repair Cost
$100–$280
Parts + labor. Free diagnosis with repair.
Parts That May Need Replacement
EBR84433506 (Power Supply Board)EAD63928903 (Power Cord — if damaged)
Do You Have the Right Tools?
Gas leak detector ($130), thermal fuse tester ($95), belt tension gauge, and vent inspection camera ($180). Our technician arrives with $15K+ in professional tools — your diagnostic is free.
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Safety First — Know the Risks
Gas dryers carry carbon monoxide and explosion risk. Even electric dryers involve 240V circuits that can deliver a fatal shock. Our techs are licensed and insured — let them handle the risk.
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Frequently Asked Questions
What does LG error code PS mean?
LG error code PS indicates: Power supply error. This is a medium-severity issue affecting your dryer.
How do I fix LG error code PS?
Check the electrical outlet with a voltmeter — LG electric dryers require 240V (two 120V legs); if one leg is lost, the dryer displays PS Then, Inspect the dryer power cord prongs for burn marks or discoloration at the outlet connection — a loose prong causes arcing and voltage drop Then, Check the home circuit breaker panel — a dryer breaker is a double-pole 30A breaker; if one pole has tripped while the other remains on, you get half voltage There are 2 more steps — see the full troubleshooting guide above. This repair typically requires professional tools and expertise.
How do I know if my dryer has error PS?
Besides the error code on the display, common signs include: Dryer drum turns but no heat; Display dim or flickering; Dryer trips breaker when started. If you notice any of these symptoms, check your dryer's display panel for error code PS.
How much does it cost to fix LG PS?
Repair costs for LG PS typically range from $100 to $280 depending on the specific cause and parts needed. EasyBear offers free diagnosis when you proceed with the repair. Call (415) 795-7300 for a same-day appointment.