How often do you clean your coils?

[gamp945]

I have a 5-year-old heat pump and have never cleaned either the indoor or outdoor coils.

I had a look at both coils today to see how dirty they appear. The outdoor coil looks as though there is nothing to clean from it. The indoor "A" style coil also looks very clean and I don't see any obvious dust/dirt to clean on either the top or bottom, although it is difficult to get my eyeballs really close so maybe there is more soiling than I can easily see. I've attached a photo of the bottom side (where the air flows up through).

Should I clean them both anyway?

How often do you clean your coils?

 

[American Locomotive]

The indoor coil is probably fine if you have good filters. Outdoor coil probably just needs a good hose down.

 

[Kaizen]

I bet if you wash them you will have dirty water. Imo worth it if not hard to do to maintain efficiency


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[karoc]

Cleaning condenser coils is easy, kill power and true off your stat so there is not 24v or 220v going to your unit. Only light water pressure using your thumb just go back/forth till you see clean water going through the coil.
A coil is a pity to clean and very messy , I would wait few more yrs.

 

[acmikee]

condenser coil yearly i use simple green spray some on and hose it off its also biodegradable

 

[samss]

5 years?
Clean them both. Even with monthly pleated filter changes, you might be surprised at the dirt that comes out.
The first lesson in ice machine maintenance class: How do you know if a condenser is clean? When you've cleaned it.

 

[tim980]

The indoor curl is presumably fine on the off chance that you have great channels. Outside curl most likely simply needs a decent hose down.

 

[ryangibson0026]

Although the coils themselves only need to be thoroughly cleaned about once a year, there are preventative steps you can take. In order to prevent build up on the coils, you should examine the air filter about once a month. Anytime the filter looks worn out or dirty it should be replaced.

 

[klassenl]

I just looked at mine today. The furnace is 25yrs old and I expect the coil is that old as well. It was at least 2/3 covered in dust. It literally peeled of.

 

[Regnar]

Yearly! and I do it during the winter so I don't have to sweat my but off in the attic. I use a garden pump sprayer and concentrate. When I bought the house 7 years ago I peeled a small blanket off made of cat hair. After cleaning coils and blower the 25 year old Trane AC Unit ran like new. I also add a tab to the bottom to prevent algae build up in the drain lines.

 

[saradanyal]

On a six months of gap. Open access, spray on cleaner, hit with brush /water. The cleaning solution should go out your drain. It's a fairly simple process if you can access the coils.

 

[AP514]

every 5 years..just make sure to kill power and also have the stat turned off..as stated above.