I'm maintaining apartement roof top units.
One unit does not cool well at all,
it's a 1 1/2 ton Rheem , very old.
low side is 60, high side 315 with a slight flutering,line temp 110 or more ? difficult to take super cool/heat readings
sorry it was very hot on the roof and could not wait to get out, was there for a few hours.
Any ideas on what I should be looking for to make it work correctly ?