Question about LG Electronic Window Air Conditioner

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Motor making straining sound decreasing air flow what should i do

Wall unit air conditioner works fine for a period of time then motor sounds like its straining decreasing air flow what could be wrong? water still drips outside the unit

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  • Jim Goldsmith
    Jim Goldsmith May 11, 2010

    Do you have this AC installed vertically (on it's end) in the window?

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Check the voltage.

Posted on May 20, 2009

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My home base portable air condition blow cold air for short period I have put the temperature 16° if it blow cold air small then it will cut off and blow warm air and the room temperature is always at 30°...



http://www.royalsovereign.com/customer-support/faqs-frequently-asked-questions/portable-air-conditioner-faq.html


Why does my portable air conditioner cool for a short period of time and then turn off?
Have you extended the exhaust hose with another? The unit can ONLY be used with the included exhaust hose (dryer type exhaust hoses will cause the unit to over heat).

How close is the unit to the wall? If the unit is only inches away from the wall and you are running the exhaust hose out a window, more than likely their exhaust hose bend is at 90 degrees which restricts air flow. In order for the unit to run more efficiently and not overheat, it should be at least 1-1/2 feet away from the wall and the exhaust hose should not exceed more then a 45 degree angle.
Are you exhausting the unit out a hole in the wall? If so, are you using a flap vent on the exterior of your home/office? The flap may be too rigid and not open continuously. The compressor is not strong enough to push the air through and therefore will only run for a short period of time before overheating and shutting off. You should take the flap off the vent and replace it with a piece of screening.

Are you venting it into a ceiling or basement? Does the ceiling or basement have ample ventilation? If the ceiling or basement does not have a way of pushing the heat from the exhaust to the outside, the unit will work for a short period of time and then eventually overheat and shut off. Portable Air Conditioner FAQ Portable Air Conditioner Frequently Asked...

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My duo therm 13.5 btu rv air conditioner started making a popping sound and dimming the lights like it's trying to cycle to shut off. Well then it started triping the circuit breaker so I changed out the 2...


The best guess is that you have a bad thermostat. When the compressor shuts off it has to stay off for a long enough period of time for the low pressure high pressure to equalize. If it turns the compressor off and back on immediately it can't start against the heavy load created by these unequal pressures. If it will start every time after sitting for 10 minutes the thermostat is making it short cycle.

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1 Answer

Noise some times and fans dont work some times


99 out of a hundred times - when the fan motor on a window unit 'makes noise and works intermittedly,' you have a bad fan motor which will require replacing.

Sounds as if the fan motor's bearings are making noise - which - would account for the fan working only part time. The reason being is that the 'bearing noise' you are hearing - is a result of the bearings being wore out - thus it causes the fan motor to heat up and 'go off' - on the internal overload' which is built into the fan motor.

Like I said above - most commonly the 'fix' is to replace the motor.

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1 Answer

No air flow in duck work


I really need more information, but let me give you a couple of things to think about, after the unit has been off for a period of time, when you first turn it on, does it blow air out of the ducts? And as it runs the air stops?
Simplist problem would be the evaporater coil in the unit is icing up, and not allowing air to flow thru it.
This can be caused by the coil being dirty and needs cleaning, or the blower motor is burnt out, this would make it so there is no air flow at the start-up and there will be no air at all.
The motor could be ok, but a wire loose, or a verity of issues.
With the information, this is about the best I can do.
Wish you the best.
Sincerely,
Paul Gibson

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have you brought it down for a general cleaning on the 3 year period? if not then that's what it needs now.

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tnx 4 using fixya,

drcool

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