White powder from heater vents

[oscar escobedo]

Fine White powder coming from heater vents. Goodman gmh95, 1 year old. Ran fine through first summer and winter.

[Raymond Wand]

Is there a humidifier on the furnace?
Filters clean?

When was the furnace last serviced?

[Dom D'Agostino]

"California snow"?

[Scott Patterson]

Fine White powder coming from heater vents. Goodman gmh95, 1 year old. Ran fine through first summer and winter.

Pictures?

[Rick Cantrell]

Pictures?

How do "Pictures" come out as a white powder?;)

[oscar escobedo]

It does have humidifier, serviced a week ago. Tech had no clue. Filter is new. Working on photos

[Raymond Wand]

Humidifier can create a white powder particularly if you have a water softener due to salt residue as water evaporates.

In some cases even if there is no water softener you can get a powder being created due to hard water.

[oscar escobedo]

Photo attached, I think.

[Raymond Wand]

Okay photos don't tell me anything.

Is the powder crusty and turn to powder when crushed?

Still thinks its a humidifier problem.

The next step is to turn off and take out humidifier pad and pan and vacuum up powder and see if problem persists.

[oscar escobedo]

Larger chunks look like dandruff flakes an yes they do turn to powder when crushed. Humidifier theory sounds good I will look into posted resolution and post outcome. Thx

[oscar escobedo]

Probably should have mentioned this before but I have two identical heaters that were installed at the same time by same contractor. One spews white stuff while other seems to work fine. However, I did notice the drain setup on problem unit is a long run and ain't sloped 1/4" per foot.

[oscar escobedo]

Humidifier theory sounded promising, but unfortunately my system doesn't have a humidifier. Sorry about the bad info.

[oscar escobedo]

No humididifier, I assumed I had a humidifier because I found some humidifier documentation with my heater documentation. I apologize again for bad info .