Question about LG LS-L1210CL Mini Split Air Conditioner

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E4 in an innovair a/c

After 30 mins the unit shuts down and blows hot air

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It sounds like you have a freon leak and may need a charge. When there is a leak, the compressor will run for awhile but without the proper charge, it will heat up and kick on on thermal overload. After the compressor cools, the unit will come back on. Have the unit serviced by a professional.

Posted on Mar 20, 2009

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InMrFixIt
  • 121 Answers

SOURCE: e4 in an innovair a/c

Hi! jorget67
Sound like the compressor overload is tripped. Make sure the condenser is clean then reset the breaker on this circuit.
Sincerely, InMrFixIt

Posted on Jan 12, 2009

6ya6ya
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Posted on Jan 02, 2017

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E4 usually means either blocked capillary, low refrigerant charge, high ambient temperature.

First: check the filters. The front panel opens up like the hood of a car and the filters are fine plastic meshes that you should be able to see through. If you can't see through them that means they are clogged. pull them put and clean them with water only and replace. If the filters are blocked the unit will be unable to refrigerate properly.

Second: check the capillary (water outlet). If the hose is clogged, water usually backs up and sometimes the A/C will start dripping into the room. This also makes cooling defficient. Do NOT try to force water through the hose. Sometimes there is debris in it and you will just make the plug harder to remove. The way to remove it is by sucking the water back, not pushing it forward. A technician should be able to do this for you. The other possibility is that the other end of the "hose" (on the outside) is clogged or under water. Just remove the obstruction.

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Fourth: have the refrigerant level checked by a qualified technician. They can refill the refrigerant. They have all the tools required.

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1 Answer

Unit shuts down


Hi,
The E4 error in display its mean the wire sensor connector to thermostat is loose pls fix , or have a problem in PCB Board on thermostat, pls go to the nearest repairman to repair that.

Thank you,have a nice day


Edgz

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