Split System Outdoor Unit Not Working

Trying to reuse an old line set that is not correct for your system will result in failure.

Split system outdoor unit not working.

Malfunctioning defrost cycle this isn t normally a problem as ductless mini split systems are designed with a defrost cycle to melt any ice on the outside unit. If you wish to warm the room further set the thermostat for a higher setting. There are two main indications to know that the outside unit of the split ac system has stopped working. Line sets must be insulated.

You won t find any sound at all. Your split system cooling system can t operate unless both units the indoor evaporator and the outdoor condenser compressor are operating. No matter how silent your split ac system is you will always hear a little hum when the outdoor compressor kicks in. If the defrost cycle is malfunctioning for any reason however the unit can become covered with ice and stop drawing heat from the air.

Each mini split system will specify the proper size line set it needs including the size of the pipes the minimum and maximum length and the maximum height difference between the indoor and outdoor unit. A split air conditioner is also commonly known as ductless split or mini split where there is an outdoor unit and an indoor unit. If you are not sure get a qualified technician to check your unit.