LG-LWHD1200HRY7 MY WINDOW UNIT WITH HEAT/COOL SYSTEM WITH REMOTE CONTROL WE TURN IT ON AND JUST HUMS, WE TRY TO TURN IT ON MANUAL AND WITH THE CONTROL IT IS 3YRS OLD I BOUGHT IT HOME DEPOT AND MISPLACE MY RECEIPT AND I'M HAVING A PROBLEM TO GET SOME ONE OUT HERE TO LOOK AT IT

Unplug the a/c and check the control panel of your a/c. Unscrew the control panel to expose the wires and terminal lugs.Check for lose wires or terminal lugs or defects from the compressor capacitor. If all are OK try adjusting the thermostat switch to make the contacts work. If the capacitor is damage replace it and replace any damage terminal lug. If the compressor still does not work, check the overload and the compressor resistance. If overload is open, replace it and check compressor amperage. If the compressor amperage is high, you have to replace the compressor, vacuum, and recharge freon.

so the fan does not spin and blow air? it could be a stick broken fan try free spinning it make sure its turned of. if fan spins freely its probably your start capacitor which is not to expensive.

You have a control board issue. You can get a new control board by Google searching the make and the model of the unit. There are several sites that sell them

First check your circuit breaker or fuse that supplies power to the outside unit. It's probably separate from the inside unit. Then try to turn unit on. If the fan and compressor just make a humming sound then turn it off and check the capacitor if you have a multimeter. You can also look at it and see if the top looks expanded. That's a good sign its bad, but not all bad one's look expanded. Tomorrow I will have access to an LG service manual and can let you know what the code means. Sorry I can't get it sooner. Let me know what you find.

Hi,

You can download the owners manual; here is the link for it.

http://www.generalmanual.com/Air-Conditioners/LG-LA121CNP-Art-Cool-Air-Conditioner.htm

when you get to the page scroll down and you will see Download Now and under that "Owners Manual" just click on it.

I hope it helps.

Check your remote controller batteries and try again if this doesn't work let me know,

The "CO" indicates cleaning operation and can be switched of via remote button under flap, labelled AUTO CLEAN.
Mat

hi! there,
have you ever check the batteries,try to replace a new one.or if not function after replacing
try to clean the pads behind in any button of your remote.doing this open your remote there are quick lock in the side of your remote,use flat screw driver to loosen this be carefull to break the
lock,try to cleran the rubber pads by cotton buds
to remove oily debris and on circuit board if you have an eracer in pencil try to rub this gradually
until carbonize element disappear.then put back
pads and cover together and try.cheers and have a nice day don't forget to rate me thank's

i have a lg lwhd 1200hr window ac the heating system dont work . it blow cold air out not heat. can you help me

I may not be of much help but I may be able to guide you into some diagnosos. If there is a communication problem between the inside and outside unit, both on the inside and outside units a colored LED will bling 5 times then pause for 3 seconds. The 33 and 44 codes are confusing to me because I have never seen this. Try resetting the outside unit with no call for heat or cool from the inside unit. After about 20 seconds, restore power to the outside unit. Go in and turn on the remote and make sure you lower the cool setting more than degrees cooler than the room temp. After 3 minutes the outside unit should turn on. If you get an error code of either 1, 2 or 5 blinks document it for the technician. If you continue to get your 33 and 44, you have a bad control board. If all else fails, press and hold the button located on the lower left side of the art unit and hold for about 5 seconds. If it still no longer works, now you will need the help of someone who knows these units.