View Single Post
  #21   Report Post  
Posted to alt.home.repair
Ed Pawlowski Ed Pawlowski is offline
external usenet poster
 
Posts: 11,640
Default Rusting air handler coils

On 9/26/2014 11:15 AM, Tony Hwang wrote:

On Thursday, September 25, 2014 11:50:36 PM UTC-4, Cheryl wrote:



Guy opened the panel and the coils were rusted, and the water in the



Hi,
I think the tech came was not really honest about the situation, may be
trying to sell
unnecessary high cost part(ie new coil) rather than repairing the issues
and give
the owner good run down on how to maintain it. Good honest techs are
hard to ccome by but they are still out there.



Absolutely. The coils are either copper tubes with aluminum fins or
aluminum tubes and fins. They don't rust.

OTOH, they sit in a pan, often steel, that will rust, especially if the
drain plugs up. All you need is a good cleaning.

The water comes from condensation of the evaporator coil. Clean the
pan, clean the drain, then clean the coils with a spray made for that.
You can do this yourself and should do it every year or so. At least
check the drain.

Call the local VOC/Tech school and they may have a willing student to do
the job.