Question about LG LS-L1210CL Mini Split Air Conditioner

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Bon-Air mini split 1.5 ton, suction and discharge pressures are equal. discharge valve has ice on it. and the suction and compressor are very hot.

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  • bdpresley Jun 25, 2009

    Yes it is a heat pump. On the AC setting the suction and discharge are at 60 PSI, in the heat setting the suction and discharge pressures were at 325 PSI. The tech that looked at it was very confused and could not help. The refrigerant is 410.

  • bdpresley Jun 25, 2009

    That makes sense and I did ask that question. The suction line is running hot in bo

  • bdpresley Jun 25, 2009

    Thanks Seth, we'll give it a go.

    Bruce

  • seth veloso May 11, 2010

    is this a heat pump?

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Sorry to sat but the tech has no idea what he is doing. The metering device is in the discharge valve, making that line a low pressure, not high. If the "suction" line is hotthen it is running in heat mode.

Posted on Jun 25, 2009

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  • seth veloso Jun 25, 2009

    now when you say the suction line is hot in cool, is it hot or just warm?

  • seth veloso Jun 25, 2009

    If you are running a 60 psi suction, chances are you are low on charge or you have a restriction in the metering device. This will cause the ice, and lack of refrigerant will not cool the compressor, causing it to overheat and eventually fail. In order to recharge with r410a you need to pull out what is in there and replace with all new because it is made up of different compounds and one may have leaked out more than the other. Also make sure the leak is found before recharging or you will have to do it again
    seth


  • seth veloso Jun 25, 2009

    Good luck, let me know if you need anything else.
    seth


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