I get a constant small white flakes coming out of the ac

Hi, it sounds like you have to buy one of the inside washing machine cleaners its a liquid that you put in the washer and let it run its cycle to flush clean the interior of the unit.

hi there,
the small flakes are bits of lime scale from your boiler system, to fix/ reduce flakes/particles complete a de-scale cycle on your machine using de-scaler. water hardness- set on 1 will change the length of time before it will ask you to de-scale the machine. Note- hardness 1 is the max time length. hope this helps

The iron has white flakes coming from the steam vents.

The white flakes can be caused by calcium or other minerals in the tap water. To solve this problem, switch to bottled spring water. Once the water is changed it may take several uses before your iron adjusts to the new mixture and the issue is corrected.

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have you ever changed the water filter that's in the front bottom sticking through the kickplate?part number 4396508 and it's around 45 to 50 dollars

clean and service the cooler. remove the filters and gently wash them with a garden hose. isolate the power to the unit and wipe components with a damp cloth

The inside coating has come off the inside of the ice maker . The white " flakes " is calcium deposits , sticking to the exposed cast metal , inside the ice maker , and sticking to the cubes , after water freezing in the mold . You need to replace the ice maker .

If you also get the flakes with the water from the water dispenser it could be the water chiller reservoir behind the crisper in the fridge. If it's just the ice maker the non stick surface in the ice mold may be coming loose.

it might be hard water in the heater. the hard water flakes and when your water heater turns on it creates some movement in those hard water flakes and makes a popping and hissing noise then when it comes to temperature it should stop. the temperature and pressure relief valve shouldn't make this noise. but if you stick your finger in the pipe and it is wet then you might have problems some where else. let me know if it is

Thats normal for an older car..
It is debris & foam insalation that is around the ducking..
Worse thing that might happen from that is you loose a little insalation,, and make a clean car a little messy..

clean the tank with white vinegar
pour it in and wait 15 mins, than pour 4 or 5 pots of water thru it