Re: [A/S] AC repair needed/dirty coils?

Here is a good blog on the evaporator cleaning job. In my experience
access from the inside is so limited in most models as to be useless with
the "spray it and let it clean itself" technique. This leaves you with the
other technique which is an easy two hours work on the roof. For those
who can't do the job themselves this is an expensive maintenance item
so it rarely gets done. Anne, likely you were told it was ok because
they didn't want to do the work involved with doing it right or didn't want
to tell you it could be almost half the cost of a new A/C unit.

http://blog.rv.net/2008/05/tech-tune-up-your-rooftop-ac/

Steve

On Tue, Jun 19, 2012 at 11:49 AM, Rick Kunath <k9ao@charter.net> wrote:

> **
>
>
> On 06/19/2012 12:24 PM, Anne Pearse Hocker wrote:
> >
> > What is the cleaner, and how do I access the coils w/o climbing on
> > the roof? Or is there an AC repair service near Ennis MT, or Bozeman,
> > or Billings, that anyone can recommend? I only have a short ladder
> > with me and would probably cave in the roof anyway.
>
> You can get that cleaner at any A/C shop. Just tell them what you want
> it for and they'll get you what you need. It comes in spray cans the
> size of a spray paint can. You spray it on and the dirt runs off and out
> the condensate drain.
>
> The condenser coil, that's the coil outside, you can probably clean with
> a water hose. Just be aware that the high pressure water can bend the
> cooling fins. So be very careful to have just a very light spray
> pressure from almost a mist nozzle.. Test it with your hands first. Then
> while you are cleaning, make sure that there are not too many bent
> cooling fins on the coil outside. If there are, there are fin combs that
> an A/C shop can run through the fins to straighten them in just a few
> minutes. IF too many fins are bent, you are blocking the heat transfer
> and cutting down on your cooling power.
>
> The inside (evaporator) coil is the one that you will clean with the
> spray cleaner. You can probably get to it by taking the inside grill
> off, but you should grab a manual and see how to get to the evaporator
> coil.
>
> You'll be surprised how dirty it probably is and how much better it
> works when the fins are clean.
>
> Rick Kunath
> WBCCI #3060
>
>
>


[Non-text portions of this message have been removed]



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