Thread: filter challenge

If anyone has a photo of dirtier filter, I'd like to see it.

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I don't have any pics but I find many just like it.

I add something like this if I see lack of maintenance.
: A dirty filter can cause soot /dirt buildup on heat exchanger, reducing the efficiency of the furnace and shorting its life.

Can't find the dirtier one right now but undersized is why this one stays so clean
Path of least resistance!

How about this one? The owner said he "has the funaces serviced every year and they change the filters".

Time to fire the service company.

This one of those washable bacteria collecting plastic mold farm filters. It was so dirty that it was sucked into the return.

I asked a seller last week if she could tell me where she changed the filter. She said: "Huh?"
She'd live there for 8 years.

JLMathis

In my opinion, there's no such thing as a washable filter despite the claims.

Yeah I had a customer that I had installed their HVAC system several years earlier. When they called with no heat, I found the thermal limit switch bad replaced it and started the system, and it started to heat and was cycling on the over heat switch. Same thing, you mean we are supposed to change the filter?

From todays inspection!
Okay what do I win? 2nd place, 3rd? Who's judging this one?

Don't have a filter picture that bad, but here's some wood blinds that was nasty.

Just moving them back to check out the window stirred up a dust storm in the room.

I saw all I wanted of this one.

Twin Furnaces the other ones Filter access sealed Home Built in 1995.

It didn't take much to remember this mess from about 4 years ago. One of the worst POS's I've done. Laundry standpipe, for instance, just emptied into the dirt crawl. Clients sprinted away!

Anyway, please send my winning check to...

It was so long ago, the pictures are archived and not readily available but:

A few years ago, I'm doing a seller's inspection. As we walk around the corner of the house and up to the AC the seller says "That's a new unit!"

I look at the serial number and see that the unit is six years old. Not wanting to embarass him, I figured I'd look at the inside unit first. I asked him where it was.

He replied "There isn't one. This is all there is." So I asked him where he changed his filters. He replied, "This one doesn't need filters."

Huh, So I told him that the serial number indicated the unit was six years old but I would confirm it. He walked back into the house and I continued on around.

He came back shortly and said, "Man, six years sure go by fast. I checked and it was six years ago when I put it in."

In the far end of the moist crawl space was the moldiest dirtiest unit I've ever seen with one of the return ducts laying on the floor of the crawl space.

I didn't even open it. Just told him to have the whole thing taken apart and given a good cleaning.

Richard M,
Okay I give, that's bad. I've been trying to find photos for a couple of filters I took several years ago, one had mold on it and the other looked like yours but had a dead bat stuck to it. Will keep looking.

Originally Posted by Richard Moore

It didn't take much to remember this mess from about 4 years ago. One of the worst POS's I've done. Laundry standpipe, for instance, just emptied into the dirt crawl. Clients sprinted away!

Anyway, please send my winning check to...

We have a winner!

Here we go.....

Richard
That's not a filter, thats a vacuum cleaner bag.

I started this thread with a photo of the dirtiest filter I'd ever seen. Two days later I saw one just as bad. The home owners had moved here from Manhattan. As the husband said: " We never had to change a light bulb". They had no idea there was a filter in the HVAC system that required changing.