My LG LAN125 mini split heat pump occasionally

Jun 30, 2009

- OK! sounds like you are low on refrigerant or if it has a tx valve it is going bad. Ice on botom only tell me only a small amount of gas is gettig to evap coil. This causes press in coil to be too low and hence yoy getting ice in small section, It needs to be checked for leaks and low and high side pressure checked and try to locate leak or restiction. there is either a sensor that is shutting it down due to low pressure, icing, or more than likely high compressor temp due too not enough refrigerant returning to cool compressor . a lot of newer units have discharge temp sensor and with low gas or restriction system superheat will be too high. Do not try to run this unit until you get this checked out as compress damage WILL happen. These compressors only cool their selves with return gas that yours is not suppling right now.