Question about LG LP1200DXR Portable Air Conditioner

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Compressor wont start..blows hot air - LG LP1200DXR Portable Air Conditioner

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This unit changes the mode from Cool to Fan constantly. Even tho I set the mode on Cool, it runs as Cool only 1~2 minutes and changes the mode to Fan. But it says its Cool. But I'm not fool. I can say what's fan and cool. If it's normal situation. This is just piece of ****. I have read trouble shooting 10 times but I don't know what's wrong.

Posted on Jul 08, 2011

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Hi,

Here is a tip about troubleshooting your air conditioner...
There are many things that can cause your air conditioner not to cool...

Air Conditioner Trouble - Review the Possibilities

heatman101

Posted on Sep 27, 2010

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Posted on Jan 02, 2017

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I have a 1998 oldsmobile intrigue 3.8 ltr. AC was blowing hot air. Vacumed system down. Now compressor wont start, wont take freon. Low pressure switch is not on receiver drier or firewall.


It should still take refrigerant even if the compressor isn't running--but it'll be a LOT slower. Whatever you do, DON'T jumper across the low pressure switch. That'll start the compressor clutch and the system will run with low or no refrigerant. The refrigerant is what carries the oil, so it'll burn up the compressor.

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Hello again. is your heater tap actually operating? its not stuck on hot is it? just check the tap actually moves when the hot cold selector is switched.

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Air cinditioning wont stay on, it switches to heat and wont shut off


What do you mean when you say it wont shut off? is it blowing hot air or do you just feel a lite flow of hot air even if you have the settings to cold?

If this is the problem that you always feel hot air at low flow and the ac goes to hot air then i would say one of two things, first if you have the selector to cold and you feel hot air then there may be a problem with the blend door, this door move to allow hot or cold air, the door may be broken or just a bad motor that controls it. keep in mind if the ac system shuts down for any reason the air then will be warm, it will be about the same temp as outside and maybe a little hotter.

this problem almost sounds like the ac compressor shuts off and then you are getting the outside air which is hot, there are many reasons for the compressor to shut off, it could be the compressor clutch heating up and disengaging , this would be due to a bad compressor clutch.

another reason is the fans are not working, the best thing to do is when the system starts to blow warm check and see if the compressor is running, start engine and look at the front of compressor, with ac off the front of it will not move, and then with ac on the front will spin, check it out and let me know, if it blows warm air and ac is not working then it may be compressor problem but if you are getting warm air and the compressor is spinning then it may be a door problem.

This is hard to check with out testing the system, so i listed a few things to check and let me know the out come. also the ac blows cold for how long before it gets hot air blowing out of the vents, good day.

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I would check the following possibilities:
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2. Low on refrigerant or refrigerant has moisture in it? If your ac blows cold initially after being off for a while, then heats up, and continues to regularly cycle back and forth between hot and cool air, then the system may be low on refrigerant or the refrigerant may have moisture in it that is freezing and restricting refrigerant flow. An a/c shop can check refrigerant level and even replace refrigerant if moisture is suspected.

Could be other issues, but I would start with these.

Good luck

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Sounds as if the compressor has gone bad. The blowing of hot air and then the fuse blowing lets you know the compressor is pulling a lot of amps causing the fuse to blow and no cold air could mean the compressor is locked up and therefore you need a new compressor.

Dave

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1 Answer

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