Every month I perform some routine service on my heating and AC system.
I changed the air filter and got rid of the old one.
I use a disposable air filter, because it is easier than washing the air filter every month. It would be much cheaper to have a washable air filter, however I do not want to take that time and energy to clean the air filter properly each time. I always check the evaporator coils to make sure that they are free of dust and dirt. I also check the drain line, but the AC device has to have a drain line for the access water. I found the drain line and I did not see anything coming out. I knew that was problematic. I grabbed a bowl of hot water from the dining room sink and I put a half of a cup of bleach in the water. I slowly poured the hot water down the drain line. I hope that the hot water and bleach would get rid of anything that was clogging up the drain line, however sure enough, a moment after I started adding the water, a lot of white stuff started coming out of the drain. It looked like the stuff was sediment and sand. We truly have a problem with hard water, so it makes a lot of sense that the sediment would be left over from the water, but after I cleaned the drain line and got the water moving freely, I kept off the pipe and moved on to the next step in the process. It only took about a half an hour for me to perform all of the yearly services that the heating and AC device require.