Ultraviolet light recommendation from HVAC tune up?
 

Had annual tune up of house a/c system last week. When you pull the cover off of the handler in the garage, the technician pointed out areas of specs of mold around the coils and various areas of the unit. The recommendation is for the installation of a multi placement ultraviolet light system to prevent and eliminate any mold development. Has any one experienced this? According to the technician, the mold is something noted on virtually all Villages units. Curious on others experience and curious if anyone has installed one of the ultraviolet lights.

A total waste of money.

Curious, does yours have the same specs and mold areas and how do you handle? Thanks.

Aren’t there tablets they can put in drain pan for that?

I don't have one and wouldn't buy one. I don't think they work.

I've never run across a recommendation not from an installer.

But in theory UV can be helpful if you have "significant" mold growing close enough to the input side of the evaporator coil. UV lamp selection and optimal placement are important.

Try asking the installer to take a before photo and another photo next service and guarantee a refund of there is no improvement ;-)

The lamp can be a high cost maintenance item.

And they can degrade any plastic or wire insulation in the path of the light.

Here's a relatively informative overview, also read the comments.

https://youtu.be/5K9pu-tkNYM

LOL. Good luck with that refund.

Truth, in Florida, you will get some light mold in your HVAC system. Truth just spray some bleach on the affected areas and it will be ok till next year, Scammrs.

The problem didn't exist with copper coils because copper is a natural anti-microbial.

So wondering if spraying with a copper sulfate solution could be worth trying? That's what's in some of the "blue" drain pan tablets.

A uv light is supposed to kill bacteria and germs. I installed an inexpensive uv light from Amazon several years ago when we had a peculiar odor coming from the ac that no one could identify. The light eliminated that and we have been remarkably free of COVID, colds and flu. The unit has a magnetic mount and is powered through the drop down transformer inside the ac or optionally the 110/220 line. The light is good for a year and then changed with Amazon replacement. I would recommend the Amazon unit in a heartbeat.

I had one installed because they destroy airborne bacteria and mold. A/c coils stay very clean. I know UV light systems are in Government buildings and Hospitals. Air in the house smells like it does after it rains. (clean). check for other installers.

Positiveinlife - Curious who you had do the install. It was one of the local BIG firms that looked at ours and quoted over $2K.

Isn’t spraying bleach on aluminum coils a bad idea?

BIGGEST WASTE OF MONEY YOU WILL SPEND... it's Snake oil for an AC Evaporator .. Change your Hvac filter every 60 days with a Merv5 ... Trust me , I have the credentials to back up my statement.

It's all in your head! It does nothing, it's a 20 purple light bulb. Another SCAM