How I Cleaned My Central Air Coil

My central air unit wasn’t working very well. I’ll admit, I’ve been more than a little lax about changing out my furnace filters. The filters are cheap; replace them regularly to avoid having to do this type of maintenance. Most filters suggest changing them every 30 to 90 days.

My wife works as an admin in the home construction industry. She knew some people so she called a couple friends to check out the system. The first showed me that I was cleaning the compressor/fan unit, which is outside the house, wrong. He cleaned it and then left me to try the system out. A few hours later, another friend showed up (we had actually forgot to call him off when the other guy showed). I told him I thought it might be working and he pointed out that it was starting to freeze up again. He could see the frost on the pipes outside.
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