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Black flakes are coming out of my frigidaire air conditioner. what can we do? is it mold

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2 Answers

My unit blows out black soot looking stuff, and it smears when touched, and my filter is clean. What is it? And how can I get it to stop?


Carol, the first thing I would suspect would be mold in the insulation within the blower compartment. Sometimes the cooling coil overflows, causing the fibreglas insulation to get wet which in turn allows mildew/mold to form in that compartment.

Severe cases will sometimes discharge nasty stuff as you describe coming out of the ducts.

Turn off the power and remove the blower compartment cover and investigate.

Oct 01, 2015 | Frigidaire Heating & Cooling

1 Answer

Seems like a black mold has invaded the air conditioner unit. What do I do and is it safe to run?


No it's not safe to run. It can be cleaned with a solution of 20% white vinegar and 80% water. Where rubber gloves when cleaning the unit.

Thanks for choosing FixYa.

Sep 09, 2011 | Frigidaire FAA074S7A Air Conditioner

1 Answer

Our frigidaire FAC10SPP1a4 air conditioner is emitting a very foul smell. What could be the problem?


Air conditioners work by taking the moisture out of the air, and that water is put in a drain pan. Sometimes, the dirt and pollen will grow mold on that water and cause a foul smell. Bleach will kill it.

Aug 14, 2011 | Frigidaire Heating & Cooling

1 Answer

Black flakes


Chances are what you are seeing is not mold, but deteriorated insulation from the inside of the unit being ejected out the air discharge.

You may need to partiallly disassemble the front of the unit and find the area where the insulation may be damaged. If it's badly deteriorated, it may need to be replaced. In some units, the insulation is glued. In others, it's clipped in.

If it's just bruised, then a small piece of metal screening (1/8" or 1/4" hardware cloth) can be placed and secured over the damaged area to prevent subsequent damage and the black flecks you are witnessing.

Jul 12, 2010 | Emerson Quiet Kool 10GV13 Air Conditioner

1 Answer

Black particles coming out of the room air conditioner


dirt, dust, or mold. could also be the tubing insulation flaking off. either way, open it up and clean it out. the dirt, dust, and flaking insulation can restrict air flow through the coils and cause the ac to not function properly. if it is mold, it's can cause sickness (legionaire's disease). do not use chemicals on the coils. it might be best to replace the ac alltogether. to prevent mold: when installing the ac, make sure the unit is slightly tipped towards the outside. any condensation that collects on the coils will drain out. failure to do so will result in water pooling inside, and this can cause mold.

Jul 30, 2009 | Kenmore 73259 Air Conditioner

1 Answer

My window a/c is spewing little black flakes all over my white couch! Filter is clean. It's an older model Sharp Comfort Touch - very quiet, cools great!


These flakes are from the blower wheel it gets mold and dirt and as it turn and gets moist it blows the out. Clean blower wheel wiht long soft brush and run unit put towel over open while running in fan only this will catch the extra dirt till clean Russs

Jul 18, 2009 | Heating & Cooling

1 Answer

Blowing our brown flakes.


you wouldn't see the mold, but you can smell it. Probably paint chips

Jun 16, 2009 | Mitsubishi Mr. Slim MXZ30TN Air...

2 Answers

Black mold growing on gray rubber boot inside door.


Leave washer door slightly ajar after use to air out any moisture. Should prevent any future mold.

Apr 10, 2009 | Frigidaire Affinity ATF7000E Front Load...

1 Answer

Black flakes, like mold in water dispenser


check your water reservoir lower part of refrig. section ( take out crispers)

Dec 14, 2007 | Frigidaire FRS23R4A Side by Side...

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