Foul Smell from Blower / Fan / HVAC

kotirajendra · 22nd June 2018, 08:48

Hi - I have been following a simple routine for years now and it eliminates all fowl smell from the HVAC.
Turn on the AC to high heat and run on max blower for a decent amount of time. After this there is no odor, just normal fresh smell. I never use any car perfume or whatever.

joe1980 · 21st November 2019, 00:34

I have recently filled up my Windshield wiper tank with defroster liquid and I'm not sure if I filled it with a concentrate. After a day I started to get a very strong smell inside the cabin and I can smell the defroster liquid every time I turn my heating system on. Is this an indication of some leakage? If I keep all my windows closed and get back to my car after about 3 to 5 hours, I cannot sit inside as the smell is so strong. I managed to dump all the liquid outside, but the smell still remains. I will take it to the mechanic very soon, but just wanted to know the opinion of you guys on what this could be?

Levi · 21st November 2019, 16:07

Quote:

Originally Posted by joe1980

I have recently filled up my Windshield wiper tank with defroster liquid and I'm not sure if I filled it with a concentrate. After a day I started to get a very strong smell inside the cabin and I can smell the defroster liquid every time I turn my heating system on. Is this an indication of some leakage? If I keep all my windows closed and get back to my car after about 3 to 5 hours, I cannot sit inside as the smell is so strong. I managed to dump all the liquid outside, but the smell still remains. I will take it to the mechanic very soon, but just wanted to know the opinion of you guys on what this could be?

This is quite normal. The air intake is in the cowl area at the base of the windshield. Switch to recirculate from fresh air when you spray the window and the smell should be gone. You can also try changing or cleaning your cabin air filter.

bigDaddy_In · 21st April 2023, 13:51

I was facing a momentary fowl smell from the AC blowers when cold starting my car. We tried AC treatment and changing cabin filter but nothing worked.

Finally I decided to get my car's HVAC system overhauled. Apparently the dust formation was blocking water to pass freely causing dampness within the system. It was cleaned by removing the dashboard.

Now the AC works as if its a new car! happy me

22nd June 2018, 08:48	#196
kotirajendra BHPian Join Date: Jan 2015 Location: Pune Posts: 137 Thanked: 154 Times	Re: Foul Smell from Blower / Fan / HVAC Hi - I have been following a simple routine for years now and it eliminates all fowl smell from the HVAC. Turn on the AC to high heat and run on max blower for a decent amount of time. After this there is no odor, just normal fresh smell. I never use any car perfume or whatever.
	(1) Thanks

21st November 2019, 00:34	#197
joe1980 BHPian Join Date: Jan 2010 Location: Andromeda Posts: 336 Thanked: 155 Times	Re: Foul Smell from Blower / Fan / HVAC I have recently filled up my Windshield wiper tank with defroster liquid and I'm not sure if I filled it with a concentrate. After a day I started to get a very strong smell inside the cabin and I can smell the defroster liquid every time I turn my heating system on. Is this an indication of some leakage? If I keep all my windows closed and get back to my car after about 3 to 5 hours, I cannot sit inside as the smell is so strong. I managed to dump all the liquid outside, but the smell still remains. I will take it to the mechanic very soon, but just wanted to know the opinion of you guys on what this could be?
	() Thanks

21st April 2023, 13:51	#199
bigDaddy_In BHPian Join Date: May 2020 Location: Bangalore Posts: 72 Thanked: 767 Times View My Garage	Re: Foul Smell from Blower / Fan / HVAC I was facing a momentary fowl smell from the AC blowers when cold starting my car. We tried AC treatment and changing cabin filter but nothing worked. Finally I decided to get my car's HVAC system overhauled. Apparently the dust formation was blocking water to pass freely causing dampness within the system. It was cleaned by removing the dashboard. Now the AC works as if its a new car! happy me
	() Thanks