Page 1 of 2 12 LastLast
Results 1 to 13 of 16
  1. #1

    Smell Problem Any Ideas

    I work at a small box factory and we are having a problem with a foul smell. It is at its worst when we return on Monday morning after having the HVAC shut completely off all weekend. As the week goes on the smell seems to weaken each day. We cannot find a specific spot where the smell seems to come from it just seems to be all around the office area. At first we thought it might be a plumbing gas problem but we have checked all our p traps and everything there seems in order so we are looking now into the HVAC systems. Has anyone ever experienced any problems like this. Maybe a bad funk in the condensation collection tray? Any advice would be appreciated.

  2. #2
    Join Date
    Jun 2010
    Location
    Colorado
    Posts
    34
    When you say you checked all your p traps... you mean you poured water down them all? Did you do the same with all your floor drains? That's one of the most common sources I've found.

  3. #3
    Join Date
    Apr 2008
    Location
    Pluto
    Posts
    983
    You got a bum living in your ductwork? How about a dead animal somewheres? For as small as they are, mice can stink up a place when dead.
    Not as lean, not as mean, but I'm still a hardcore, ass-kicking, hard charging Marine! Oohrah!

  4. #4
    Join Date
    Jul 2009
    Location
    Connectitaxed
    Posts
    2,644
    A "foul smell " is kind of vague....describe.

  5. #5
    Yes we checked all the p traps and poured water down all of them. No it is not a dead animal, I have smelt a lot of dead things and this is not what it is. O my that did not sound good., hehe. We thought sewer gas for a long time but we have checked every hole plugged every hole and there has been no change on Monday morning always the same foul smell. And thank you for your replies.

  6. #6
    It is hard to describe but very close to what I have smelt from sewer gas before. I was just wondering if anyone had ever ran into this type of problem with and HVAC system and duct work, like extreme condensation or something in the unit it self becoming smelly after being shut down for a weekend. O only happens during the summer time also..the last two summers.

  7. #7
    Join Date
    Jun 2010
    Location
    Colorado
    Posts
    34
    Okay. If you're sure you've found EVERY floor drain.... Do you have a standard domestic hot water heater? Sometimes, if the anode has been totally eaten away, the water pipes will start to have issues and odors can result from that. Might be worth having a plumber check it.

  8. #8
    Join Date
    Jun 2010
    Location
    Colorado
    Posts
    34
    Another thought... Is your HVAC unit on the roof? If there's a vent nearby, venting methane gas, that gas could be pulled into the building....

    Oh wait. You said it was worse after the weekend when stuff was shut down.

    Nevermind.

    Still thinking.

  9. #9
    Join Date
    May 2004
    Location
    Rapid City, SD
    Posts
    7,415
    Way vague stab in the dark here.

    Summer time only? I'm guessing A/C problem. Perhaps the coil is dirty enough that water is blowing off of it and into the duct system. During the week the fan moves enough air to keep it dry, but over the weekend it has time to sit in the duct's and fester causing the problems.

    Just a random guess.
    "If you call that hard work, a koala’s life would look heroic."

  10. #10
    Join Date
    Jul 2009
    Location
    Connectitaxed
    Posts
    2,644
    Quote Originally Posted by BethAir View Post
    Another thought... Is your HVAC unit on the roof? If there's a vent nearby, venting methane gas, that gas could be pulled into the building....

    Oh wait. You said it was worse after the weekend when stuff was shut down.

    Nevermind.

    Still thinking.
    Probably what is going on...economizer drawing in air with stink pipe nearby.

  11. #11
    Join Date
    Mar 2004
    Location
    SE Michigan
    Posts
    17,905
    Have you tried replacing the migrant workers with US citizens?
    " Kill a Commie for Mommy! "

    - Colonel David Hackworth (1930-2005), Korean War Vet

  12. #12
    Join Date
    Jun 2009
    Location
    Jesup GA.
    Posts
    83
    Maby the dirty sock smile microrg. growing on the evp. coil dark and wet has time to mulitipy during weekends.

  13. #13
    Quote Originally Posted by luther71 View Post
    I work at a small box factory and we are having a problem with a foul smell. It is at its worst when we return on Monday morning after having the HVAC shut completely off all weekend. As the week goes on the smell seems to weaken each day. We cannot find a specific spot where the smell seems to come from it just seems to be all around the office area. At first we thought it might be a plumbing gas problem but we have checked all our p traps and everything there seems in order so we are looking now into the HVAC systems. Has anyone ever experienced any problems like this. Maybe a bad funk in the condensation collection tray? Any advice would be appreciated.
    Bacteria and fungus maybe stock on your HVAC. try to have gelair block. this is effective and proven with test and trial by know company in singapore.

Page 1 of 2 12 LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Comfortech Show Promo Image

Related Forums

Plumbing Talks | Contractor Magazine
Forums | Electrical Construction & Maintenance (EC&M) Magazine
Comfortech365 Virtual Event