My Coleman Mach roof a/c unit is not cooling well and I'm thinking of replacing it. It's about 15 years old. I've already been on the roof to remove the cover and clean the unit. It was clean as a whi...
Have you tested the temp difference between inflow/outflow - if it's around 20 degrees then the units working as designed.
Not positive but if you have to replace the unit you might be able to get away with replacing only the upper portion - if you provide your AC model number to seller he should be able to confirm whether new unit will fit/match with current setup.