Called a large local on-time service company because the unit was only getting a 14 degreee split and generally not cooling the house below 79. He took some readings at the condenser and said your pressure it too high..around 300 or so. He cuts off the old line dryer, blows out the piston, installs a new dryer and re-charges. Everything is the same as far as I can tell. Nothing has changed performance wise.
3 Ton 1994 Resco condenser with a 2003 Carrier air handler/heater in the attic.
He did not write any of the pressures/voltages etc on the paper work.
Any suggestions for the next guy?
I know a 10 year old condenser is in its twilight, but is there anything that can be done to squeeze out a better temp split?