Quote:
Originally Posted by Wetstuff
I had a mechanic top off the freon (?) in the chassis A/C ...but who could/should do the roof unit?
It works, but it's 2003... and given the level of service I have observed about other things, I suspect this would benefit. I just don't want to get bent forward in the process because I am a newbie. Thanks.
Jim
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Its a sealed unit, with no check ports. So no way to check via high/low pressures to see if there is the right refrigerant fill. All you can do is google search for the temperature drop table for a given ambient temperature and humidity and measure the difference between inlet and outlet temperature.
There are certainly maintenance you can do to make it work better.
- clean the air filter inside
- remove the inside cover - often the air flow holes are partially obstructed due to sloppy install or tape coming loose after install , starting to obstruct air flow. Minimize air flow obstructions.
- remove the cover and clean out the accessible parts of the roof top side of the unit, be gentle don't spray with high pressure water or use harsh chemicals to clean. Get rid of any wasp or other critter nests.
- use coil cleaner to remove exhaust soot and/or dust buildup from the outside coils.