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My brand new lg air conditioner keeps shutting off by itself. the fan is always running but the compressor only comes on for 5 seconds then shuts off...

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Your AC have a thermister problem
if u replace the thermister your AC will be OK.

Posted on Jun 08, 2008

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Turned ac off while running well turned back on to soon


shut unit off and wait at least 5-10 minutes before re-starting. do not want compressor to struggle to start. good luck!

Jul 08, 2015 | Dometic Rooftop RV Air Conditioner

1 Answer

No heat but fan keeps running


If the air conditioner compressor runs all the time the main control board might be defective. The main control board provides the voltage to the fan motor and compressor. These boards are often misdiagnosed. Check all other components to be certain this is the cause of the problem.

Nov 25, 2013 | LG LAN186HV / LAU186HV 18,000 BTU 15 SEER...

1 Answer

LG Air Conditioner LST182V-4


It may cause it to shut down if it's a safety thing, but it sounds like the compressor's faulty to me.

May 16, 2012 | LG Heating & Cooling

2 Answers

Lg lwhd1009r


Most window air conditioners run the fan all the time but cycle on and off the compressor that makes it blow cold air, I knew a AC that was a small Hunter Bay brand (which I think is LG) that shut fan off also when it reached the right temperature.

Hard to test them in winter, you may not have it warm enough in the room for it to start making cold air, generally speaking that could be the problem.

Jan 10, 2012 | LG LWHD1009R Air Conditioner

1 Answer

I have a duotherm rooftop ac. fan runs fine but when comppressor starts it runs for 5 or 10 seconds and shuts down


I'm not familiar with these units so this is very general. Your compressor could be shutting down due to low pressure. You would need to get the refrigerant charge checked. It might be due to an overload tripping, which would then reset itself. If you had a schematic or something to send me I could tell you more.

May 05, 2010 | Dometic Rooftop RV Air Conditioner

1 Answer

A/C starts up/Cools/Fan Slows, Unit Shuts down in 4 minutes


Ensure proper voltage to the unit. Check for overheated/damaged wires and/or connections in the control panel as well as at the fan motor and compressor.

Apr 03, 2010 | Dometic Rooftop RV Air Conditioner

1 Answer

I have a Dometic rooftop Air conditioner in my RV When I turn it to low medium or high the fan run the same speed and when I turn it to AC it will run for about 5 min then the fan will shut off but the...


Bad fan motor I suspect The windings are bad causing the motor to over heat sending the motor into thermal overload. would suggest the replacement of motor. Good Luck on repairs

Dave

Sep 14, 2009 | Dometic Rooftop RV Air Conditioner

1 Answer

Brand new Duo Therm won't stay running


You really need an Ammeter to check this problem. Just because it is a brand new unit does not mean that there isn't a problem with it. Is it run off of a wall thermostat or manual controls? The compressor has a thermal overload switch on the top (under the plastic cover) that will take the compressor out of the circuit if it gets too hot. However, if the entire unit is shutting off, there is another problem. Selector Switch? Thermostat? Let me know what kind of controls you have and we can go from there.

Jul 01, 2009 | Dometic Rooftop RV Air Conditioner

1 Answer

Air conditioner compressor keeps shutting down


This is due to thermal overload,Which can be caused by low oil in the compressor,the fan has stopped running on the unit outside,Dirty coils,or just a worn out compressor.Although this is thermal overload,It has nothing to do with outside temperature,But rather the internal temperature of the compressor itself.

May 19, 2009 | LG Heating & Cooling

1 Answer

Compressor starts and doesn't stop


Relay for the compressor may be stuck ( Contacts welded) both the fan and the compressor should operate at the same time. Have the relay(s) checked and possibly replaced.

Apr 29, 2008 | Dometic Rooftop RV Air Conditioner

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