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Post by digiboy on Jul 27, 2020 21:02:29 GMT -5
Brand new LG 6000BTU appropriate for the room size. Carefully installed and running on a separate outlet. We're in a small heat wave here in NYC. First time I've needed to use it.
Symptoms as follows. The thing kick butts and cools the room. Great.
But the compressor stays on all the time.
OK it is hot out. So I raise the temp on the digital control to back it down a bit. The compressor continues to run non-stop right up thru a setting of 76 degrees. This over a period of 24 hours. Never shuts off. If I move the control to 77 degrees, compressor shuts off in a few seconds but then comes back on in about 4 minutes. Then shuts down again in about 4 minutes and it continues to alternate like that about every 4-5 minutes. From what I read that is called a "short cycle" and is not good, also uses a lot of juice with every re-start.
Could I be doing something wrong or should I just take it back to the store?
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Post by rangercaster on Jul 27, 2020 21:13:39 GMT -5
Can't help ya here ...
Sorry...
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Post by Lesterstrat on Jul 27, 2020 21:23:14 GMT -5
It sounds to me like not large enough for the room. Also, one thing you have to remember with window units is the thermostat is not a separate unit strategically placed in the home. It's right there in the unit. If that thing is in baking in direct sunlight for prolonged times (especially in the hottest parts of the day), it's going to run, run, run.
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Post by Sharkie on Jul 27, 2020 21:27:35 GMT -5
Brand new LG 6000BTU appropriate for the room size. Carefully installed and running on a separate outlet. We're in a small heat wave here in NYC. First time I've needed to use it.
Symptoms as follows. The thing kick butts and cools the room. Great.
But the compressor stays on all the time.
OK it is hot out. So I raise the temp on the digital control to back it down a bit. The compressor continues to run non-stop right up thru a setting of 76 degrees. This over a period of 24 hours. Never shuts off. If I move the control to 77 degrees, compressor shuts off in a few seconds but then comes back on in about 4 minutes. Then shuts down again in about 4 minutes and it continues to alternate like that about every 4-5 minutes. From what I read that is called a "short cycle" and is not good, also uses a lot of juice with every re-start.
Could I be doing something wrong or should I just take it back to the store?
I believe I had the same model. Check what “mode” you have the unit set on -> cool, dry or energy saver. On “energy saver“ it would cycle on and off annoyingly all day. Try the cool setting.
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Post by Peegoo 🏁 on Jul 27, 2020 22:08:14 GMT -5
It should be cycling--even if it cannot keep up. Sounds like the controller may be malfunctioning.
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Post by digiboy on Jul 27, 2020 22:11:01 GMT -5
"It sounds to me like not large enough for the room." It's recommended for 260 square feet. The room is 243. Window is not in direct sunlight.
It cools the room plenty. In fact more than I need. So I think the AC is big enough for the room. When I raise the temp control, that shouldn't send the compressor into short cycling, it should just run less often. No?
" Try the cool setting" That's the only setting I use.
Lesterstrat and Sharkie,
Thanks for the ideas, I do appreciate them but I don't think they are the problem.
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Post by digiboy on Jul 27, 2020 22:16:48 GMT -5
It should be cycling--even if it cannot keep up. Sounds like the controller may be malfunctioning. Yes I suspect it's a defective controller but being it's new out of the box, and me being a novice, I just want to check that I'm not doing something stupid. I really don't want to go through removing and exchanging the thing for another one.
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Post by K4 on Jul 27, 2020 23:20:54 GMT -5
The thermocouple that the thermostat uses for temp reference is in the wrong spot. Typical of the made in china units.
You can swap units, but the operation will most likely be the same. Google a fix and modify your unit, (move the thermocouple) buy a made in US AC unit for 2 times the price.
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Post by digiboy on Jul 27, 2020 23:42:43 GMT -5
The thermocouple that the thermostat uses for temp reference is in the wrong spot.
As you suggest, I'm probably doomed to end up spending a lot more.
I don't doubt you are correct but would the poorly located thermocouple cause the unit to ""short cycle?" If it's reading the temperature wrong, shouldn't that just cause the AC to respond as if the room is that much too hot or too cold. That's not what's happening. What causes "short cycling?"
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Post by budg on Jul 28, 2020 4:18:31 GMT -5
I guess a useful piece of info would be what the actual temp is in the room and go from there. Without that info were all just guessing. Do you have something to accurately measure the room temp? Like someone else said , make sure its not in "dry" (dehumidifying) mode.
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Post by Mfitz804 on Jul 28, 2020 9:26:26 GMT -5
The thermocouple that the thermostat uses for temp reference is in the wrong spot. Typical of the made in china units. You can swap units, but the operation will most likely be the same. Google a fix and modify your unit, (move the thermocouple) buy a made in US AC unit for 2 times the price. K4 is likely right, however, I have used cheap non-US made window units many times with no issues. I would not take it back for the same model, but I would take it back and try a different one. Whether its US made or not, that's up to you.
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Post by digiboy on Jul 28, 2020 11:34:58 GMT -5
K4's assessment makes a lot of sense. However, this model has been out for about 2 years. Seems to me that an inherent design flaw that causes this to happen would surely have been noticed by now.
Yeah kinda looks it's gonna have to go back. I'm not about to go through removing and installing another unit in the middle of this heat wave. Should pass in a couple more days. At least this thing is keeping the room nice and cool. Compressor running 24/7 for about 5 days at 500 watts. Wonder how that will look on the electric bill. Then back it goes. It's going to depend on what Home Depot has in stock for an exchange.
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Post by guildx700 on Jul 29, 2020 1:32:09 GMT -5
Did it sit in the proper, normal upright position at least 24 hours before use? This can affect the compressor oil.
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