When our HVAC professional came out to the house to check out our HVAC that had been having problems, I was talking about how I cleaned the HVAC unit pretty good. When he checked the unit, it was pretty shiny from the outside, but when he opened it up, it was a mess. There was so much dirt and debris built up, I couldn’t believe it. I was confused because I thought the air filters I was using were pretty good. When the guy looked at the air filters though, he said under his breath, “fiberglass air filter?” He clearly disapproved of the air filter, but he didn’t make a big deal of it. He advised that I leave all of the HVAC maintenance up to the professionals. He said it was alright to do what I did with wiping down the HVAC unit real well, but I should always shut off the power to the unit before making any moves like that, as a safety issue. I understood what he was saying, and didn’t want to risk getting killed from electrocution or getting hurt badly. When we went to the outdoor A/C condenser, he shook his head. He said again under his breath, “No wonder this system is struggling.” He pointed out that there were tons of leaves and grass debris built up around the condenser basically choking the system from essential air intake and the fin coils being clogged could not do their job. He opened up the unit after managing the shut off and he sprayed the debris out from within. He cleaned the fan blades real well and carefully and the condenser looked good when he was done. When he was finished, the A/C system was working perfectly!