Went to shut off and none of the buttons worked; neither did remote. The same situation happened a couple weeks ago and I left the AC unplugged over night and it worked in the morning. This time it has been unplugged for 2 nights and nothing gets it started. The green light is "on" on the plug. There is usually a little melody that plays when it gets initially plugged in but it is not doing that. Filter is clean
Unplugging the unit lets the tiny computer like microprocessor reset--means problem is in the brain of the unit or its power circuit.
Did you ever figure out how to fix it? I'm having the same problem with mine.
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SOURCE: LG Split unit turns itself off after a couple of seconds of opera
Check your remote control using your camera or cellphone camera as your eyes. Point the remote control transmitter to your camera and "on", light should emit in your remote control transmitter (means good remote). Reset the unit by disconnecting the power supply for 10 sec. then "on" again and start the unit. If it wont work you need a qualified tech. to solve the problem.Some of your safety device might be defective.
SOURCE: I have a LG window AC Model LWHD8008R. Won't power up?
Replace reset switch or bypass it to make sure it is the problem. Check for low voltage while the unit is on. Shoud stay above 105 vac
SOURCE: on ac with out remote
Lift the front panel on the indoor unit and press the small button on the right hand side near the electrical cover
SOURCE: LG split AC keeps displaying CO and wont't turn off with remote.
The "CO" indicates cleaning operation and can be switched of via remote button under flap, labelled AUTO CLEAN.
Mat
SOURCE: My Reset button wont reset
Just guessing, here. The reset is actually a "Ground Fault Interrupter" called a GFI. It's there to cut of power in case of a dangerous electrical condition--which you probably don't have.
Did you unplug the unit? If not do so, let the GFI cool for several minutes, and try to reset again. They're pretty hard to push in, maybe use a fingernail, you must hear a click or it's not reset.
Is there water in the outdoor unit, or is it filled with snow? This is the most likely cause of an actual GFI fault.
If the GFI itself has failed (unlikely), you could replace the entire power cord. You should then maintain safety by installing a GFI circuit breaker on that circuit, or you'll be in violation of codes that might affect your homeowners insurance.
There could actually be a problem with the unit. This would be that an electrical wire has come loose and is contacting the metal chassis, creating a shock hazard. Unlikely but possible.
If the receptacal you're plugging into is old and worn it might the problem. Worn receptacles might actually have tiny electrical arcs inside, which can trip a GFI. At a couple of bucks (DIY) it's worth a shot.
If there's actually an electrical fault in the unit it can be found and repaired, but the cost of repair could very well be more than it's worth. Warranty?
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Why did unplugging it for 8 hours work 2 weeks ago and not this time?
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