Quote:
Originally Posted by Michael G.
What actually is done on a semi or annual HVAC checkup? 
I change my own filter, I make sure the condensation drain pipe is clear.  |
You should also inspect the outside unit and hose it down if the coil is dirty. Also, on a hot day, you should inspect the suction line (the pipe with the black insulation) on the outside unit to see if it is cold and sweating. If it is, you probably have enough refrigerant.
But, other than that, you are probably doing everything you can to prevent a failure.
Here is the Sunkool 21 point "tune-up" list, but I wouldn't pay anything for it.
HVAC Maintenance The Villages, FL, Summerfield, FL & Oxford, FL | HVAC Maintenance Wildwood, FL, Lady Lake, FL & Leesburg, FL | Sun Kool Air Conditioning Inc.
Note that they say that they will "wash and wax" your outside unit. I don't think I have ever seen an outside unit being given a wax job. I would be surprised if Sunkool is actually doing everything on their list.