My central A/C system has an odor something like vinegar. Thie filter has been changed regularly. Any help/ideas as to what's the cause/how to eliminate? Using lysol/oust on filter only temporarily helps.
Thanks, Mike

If you have a central A/C system the return air pulls all odors and common air in the house to one point before sending it through the system and out the supply ducts. The smell may becoming from another source other than the hvac system but you only notice it while the system is running.