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I have LSA 18TWASI LG make split air conditioner purchased two year back.Since then it was o.k. but now in this summer season ,when it was found that whole gas happened to leak , it was serviced and the service man just charged the 1.2 kg gas.But after 4 /5 days it was observed that the compressor is getting tripped in very short time even the temp. is set at 18 Deg and the room is not attaining the set temp. I opened the body myself and observed that ice is seen only upto half length of the gas flowing pipe of inside unit and also in only few incoming pipes. Would you please diagnose and suggest me what is the trouble in the air conditioning unit. I would be thankful for that. Regards R. Sinha

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Refrigerant is colder at lower pressures. Frost and ice on the suction line at the compressor is a common sign of being low on refrigerant. The suction line is the larger of the 2 copper lines. Please rate my answer for me. Good or bad, it all helps me to be better. Thanks for writing. Roger

Posted on Apr 04, 2011

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It sounds like it leaked again and there's not enough refrigerant in the unit to cool. That's generally is what causes the cooling coils to ice up. Get your serviceman back and see if he can replace the coils. Repairing them is not a good option.

Posted on Apr 04, 2011


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