New House - New to Central AC and Yearly Service Advice


Old 07-14-13, 06:23 AM
Thread Starter
Join Date: Aug 2009
Location: USA
Posts: 181
Upvotes: 0
Received 0 Votes on 0 Posts
New House - New to Central AC and Yearly Service Advice

Hi Guys,

I'm in a new home with Central AC. This is my first experience with central AC.

I have 2 units, one in the attic and one in the basement handling the second and first floors. Both are Trane and about 8 years old.

The condensors seem clean though I haven't pulled a cover to fully inspect the insides.

The air handlers have old electric filters with only pre-filters though they were turned off when we moved into the house. I've since cleaned the pre-filters though the electric grids are clean. I've looked at the evap cores and they seem fairly clear. I haven't looked at the blower motor yet...

I'm a fairly handy DIY guy who usually never outsources home work unless absolutely necessary. I'd rather buy the tools and learn from the web and here and learn the skill and pass it along to others.

That said, what am I looking at relative to maintenance for the units? What is the frequency and what needs to be addressed. Are there any special tools that I will need and what parts of the service are beyond my scope...?

Looking forward to learning along the way.



Sponsored Links
Old 07-14-13, 06:46 AM
Bob14525's Avatar
Join Date: Jun 2013
Location: USA
Posts: 1,464
Upvotes: 0
Received 11 Votes on 8 Posts

I'm just a DIY myself. To my knowledge, keeping the condensor coil clean, replacing the air handler filter regularly, and changing the thermostat batteries when needed are just about all that the average homeowner can do.

To clean the condensor coil, the recommended way is to remove the fan assembly from the top of the unit (so you can gain access to the inside of the coil). The fan sucks air in through the coils and out the top, so to remove any dirt, you want to take a garden hose and spray water through the coil from the inside (opposite direction of the normal airflow through the coil). When spraying the coil, be careful not to bend any of the fins, and (of course) be sure the power is turned off before working on the outside unit.
Old 07-14-13, 07:24 AM
Gunguy45's Avatar
Super Moderator
Join Date: Dec 2007
Location: USA
Posts: 21,105
Received 0 Votes on 0 Posts
I agree with Bob. Regular filter replacement will normally keep the inside coil clean as long as no construction is done with the system running. Maybe once every 5/yrs or so it should be inspected after initial startup. Outside unit as he described. I've also used a aluminum wheel cleaner (not the acid stuff) or a KrudKutterorSimple Green mix to spray on and clean the dirt off. In the off seasons (late fall, winter, early spring) I would put a cut to size piece of window screen held with magnets on the top of the unit to keep leaves out.

Last edited by Gunguy45; 07-15-13 at 05:58 AM.
Old 07-15-13, 05:23 AM
Join Date: Jun 2012
Posts: 889
Upvotes: 0
Received 2 Votes on 2 Posts
The screen is a great idea in the off season!

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Thread Tools
Search this Thread
Display Modes
Ask a Question
Question Title:
Your question will be posted in: