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Started By
Message
Best way to clean mold from residential AC evaporator.
Posted on 1/11/25 at 6:54 pm
Posted on 1/11/25 at 6:54 pm
A friend has 12 year old HVAC system. During a repair a technician said the evap core has mold. He sent me a picture and it looks to be on the bottom 20%. He said the only way to fix it is too change the coil for a lot of $$.
I looked this up on the net and saw techniques of cleaning it. Is this practical and effective? I think I need some opinions from some honest pros.
Thanks in advance,
I looked this up on the net and saw techniques of cleaning it. Is this practical and effective? I think I need some opinions from some honest pros.
Thanks in advance,
6
Posted on 1/11/25 at 9:00 pm to Swazla
AC tech cleaned our coils with some type of chemical and a brush. Not sure what the chemical was but it stunk quite bit. This got the majority of it off. Then we installed UV lighting that is supposed to keep the coils clean.
This post was edited on 1/11/25 at 9:03 pm
Posted on 1/11/25 at 9:37 pm to Swazla
There’s no way that I would replace a coil simply for some mold. You can buy some spray coil cleaner at the Lowe’s and use a soft brush. Be sure to not fold the fins over on the coil.
Posted on 1/11/25 at 10:36 pm to Swazla
Coil cleaner or some use dawn and water.
Posted on 1/12/25 at 8:12 am to Swazla
Concrobium mold control. Sold a ton of it in 2016 and have used it in my own home. Spray on coils, use a soft brush then rinse. It kills any mold and mildew that it contacts.
Posted on 1/13/25 at 2:54 pm to Swazla
You can also use simple green
Posted on 1/13/25 at 9:53 pm to LSU999
Thanks for all the information!!!
Posted on 1/14/25 at 8:02 am to LSU999
I would not use simple green on aluminum.
Posted on 1/16/25 at 1:11 pm to Spankum
quote:
use a soft brush. Be sure to not fold the fins over on the coil.
This especially. Brush with the direction of the fins, not across it because they do bend very easily and that will inhibit air flow.
Posted on 1/17/25 at 12:58 pm to Swazla
The mold will die faster than the metal will be hurt. Set a tarp underneath of it to catch anything that falls. I'd spray it liberally and then rinse it off after 5-10 mins. Let it dry, and do it again if need be.
You can use a yard type of sprayer, maybe even dilute by quite a bit. On a 12 year old unit I would worry more about the mold than the unit, I mean what's the worst that can happen you need to replace it?
You can use a yard type of sprayer, maybe even dilute by quite a bit. On a 12 year old unit I would worry more about the mold than the unit, I mean what's the worst that can happen you need to replace it?
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