This unit is fairly new. There was a needle valve on the compressor line when we got it.
We checked the pressure and it's fine.
I'm not sure how old it is. Would the date be encoded in the serial number?
We bought it from a liquidator.
The pressure was 38 psi. There's no frost on the evaporator coil.
I payed next to nothing for it, knowing that it had issues so I don't mind investing some money to get it fixed.
How are the new ones working with two Evaps and the switching valve and they have check valves in the lines how do they equalize