Country of Origin: United Kingdom
This morning i put my fan on and i got a really bad smell coming from the vents,I would of thought it was bacteria build up but would you still get the bad smell if the aircon isn't on?
I had the pollen filter changed in may and the aircon serviced but i dont know if they used anything to kill the bacteria.
Im trying to find some places that will just do the bacteria problem but im not having any luck as they only do it when you pay for the full service,Ive seen some cans you can buy from halfords but do they really work?
Check that you system is draining correctly. Turn the a/c off but leave the blower on a 1/4 mile before you stop. Evap core treatment products are fine but some work and some just mask the smell. We prefer the DWD2 brand in our shop. Lysol also helps, just turn on the blower in re-circulation mode and spray some Lysol in the inlet.
You might also check the front grill, undercarriage, and engine compartment for the remains of a bird or small rodent.
and like TRB mentioned. Make good and sure the evap box is draining all the condensation out. If water builds up it will stink.
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Thanks i shall see if anything nasty has been caught up,But how would i check the drain tube?
The fan is the culprit, anything with a fan on it blows debris, while bored on a long trip and sick of listening to the radio or a CD, counted the number of fans I own, something like 93 as I recalled. All get filthy plus whatever they are blowing on. In electrical appliances and tools, cheapest was to go, skimp on using the right size copper and magnetics so you have more of a heater than a device that converts electrical to mechanical energy, just stick a fan in there to keep it from burning up.
MVAC is the most difficult to keep clean, condensers are bad enough, evaporators are next to impossible. Could make a MVAC system like a freezer with the evaporator tubes enclosing the interior of the vehicle, too expensive. Also has exhaust manifolds running at 1,200*F just inches away from what is suppose to be cold. Squirrel cage blower wheel is not an air blower, more of a debris chopper that piles up crap on top of the evaporator face. With moisture and leaving your vehicle unattended in a hot environment, everything is ideal for growing mold. And in some systems without screens on the intake grille, things can crawl in there and die.
Got my first AC vehicle in 1965, didn't take me long to realize I should kill the compressor a mile before I got there with the blower at max to dry it out, have been doing that ever since and training my wife and kids to do that as well. With cars with ATC where they wouldn't let you do that, added an under dash switch so I could do that. Also added screens to vehicles with leaf choppers.
New vehicles in air conditioned humidity controlled showrooms don't have that problem, maybe we should leave them there. How do you clean them? Need access, use a leaf blower, vacuum cleaner, air hose, whatever, always find debris on top of the drain hose. That varies considerably from vehicle to vehicle.
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