07-19-2021, 08:55 PM
MikeF wrote:
The concern is that the refrigerant was low. It shouldn't leak. That tells me there's a small leak somewhere.
I usually chat up repair guys to get info out of them. Some are more talkative than others. I asked the HVAC guy if this low pressure was normal. That's when he asked me when was the last time the system was serviced. (Never in 6 years since I had it installed) He tells me, with mini split ductless units the copper line sets are 20-30 feet long. From the one, outside condenser unit to the individual wall units in the rooms of the house. Topping off the refrigerant in mini splits of this size is not uncommon.
During the next service check (my call) he will check the coolant pressure. If it's out of the ordinary, then he can use a dye and check for leaks. I appreciated that the HVAC guy took the slow, wait and see approach. And didn't try and use fear tactics to push me towards expensive repairs at the onset. I will keep an eye on the cooling levels and we'll see how it goes.