At the beginning of last summer, when I lowered the temperature control setting, I noticed a few concerns with the a/c.
There was a musty stink coming from the supply vents and absolutely less air than normal.
It was also sending a significant amount of dust into our home and operating at a louder sound level. I was fairly sure that all of these upset could be solved by professional repair. The cooling plan had sat idle throughout the fall, Wintertide and Springtime seasons, then during that time, a significant amount of contaminants had most likely settled inside the unit. I figured there was absolutely mold growing on the cooling coil, dust on the fan blades and algae clogging the condensate drain, but while those concerns can lead to major malfunction, they can also be easily resolved with a professional cleaning and adjustment. A certified HVAC contractor has the specialized training, tools and experience to take the cooling plan apart and make any necessary adjustments. During annual service, the contractor correctly tightens electrical linkions, lubricates moving parts, checks the many belts and makes sure the filter is clean. My partner was convinced she could manage these jobs, then since our partner isn’t all that handy around the house, I wasn’t convinced. However, I didn’t believe it would hurt to let him try. She devoted nearly 5 hours to dismantling the cooling component and cleaning each component, but once the a/c was put back together, it wouldn’t start up at all. I then needed to call for repair. It cost me a lot more to have the cooling unit fixed than it would have for official upkeep.