furnace a-coil How to clean?

Answer 1

In most cases you must gain access to your supply plenum. If you have an access door where the refrigerant lines go into the plenum remove it first. The part of the coil that needs cleaned on an up-flow furnace is the inner most part which requires you to remove two other panels on the face of the coil. You can clean the coil with a diluted bleach or you can purchase a non-acidic coil cleaner that is specifically for this. If you have a down-flow clean the top of the coil.

Answer 2

If you can get at you coil the best way is to use a coil comb. They are combs that come in different widths to fit different coils. You are probably going to have to buy the whole kit just for one size. The are available at most HVAC shops and are inexpensive compared to having a tech come out to clean your coil. The coil fins are very sharp so be careful. I am guessing your furnace is tripping out on high limit because of a blocked A-coil. DO NOT use compressed air, it will bend the fins and make things worse.

Answer 3

A very good tool to clean an A coil is a hand held steamer cleaner from Walmart. Spray the entire coil with LesToil, then put the little hand held steamer cleaner to it. It will bright and clean as new.

First of course you need to gain access to the coil itself.

Answer 4

Don't use compressed air it will damage the fins on your coils. And bleach will eat the fins as well because it has a violent reaction with aluminum. Use only evaporator coil cleaner. It is non acid. The acid cleaner is only for the outside condenser coils.
and must be rinsed down after using it.

Answer 5

Use compressed air