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  1. #1
    Join Date
    May 2012
    Location
    Grand Junction, CO
    Posts
    236

    Why is this furnace locking out??

    On a no heat call today. Furnace locking out on high limit. Went to check filter and found none. Checked evaporator coil, and turns out, its slightly dirty!!! Homeowner has lived there seven years and never knew about a filter. Worst part is that someone was out last month. And replaced the flame sensor. And a year ago someone found a "problem with the gas pressure"!!! When i pumped the system down to remove coil, i got a look at the condenser coil! First pic is evap, second is condenser. Btw, they have dogs.
    Attached Images Attached Images   

  2. #2
    Join Date
    Jun 2006
    Location
    SW MO.
    Posts
    5,212
    Had a customer awhile back. No filter rack. Return grilles just grilles. No filter ever installed in the 7yrs it was built. Evap coil and blower were clean. I was amazed.
    Discipline your child so that other parents don't have to.

    We're awl pawthetic and kweepy and can't get giwrls. That's why we fight wobots.

  3. #3
    Join Date
    Oct 2009
    Posts
    980
    It made its own filter.
    Never argue with a crazy man.

  4. #4
    Join Date
    Dec 2007
    Location
    Afton, VA / Khorat, Thailand
    Posts
    2,469
    Holy Moses........!!I think I know them....
    Tough times don't last...Tough people do.

    Midnight Sun Astrophotography

  5. #5
    Join Date
    Mar 2009
    Location
    Mid-Mo
    Posts
    3,596
    Another filter type that gets more efficient with time!!!

  6. #6
    Join Date
    Feb 2012
    Location
    Toronto Canada
    Posts
    1,090
    That Filter stops everything sensible, latent heat etc LOL

  7. #7
    wow... how can that system function just how?!

  8. #8
    Join Date
    Aug 2012
    Location
    Central VA
    Posts
    224
    Must be renters

  9. #9
    Join Date
    Jun 2011
    Location
    Houston area
    Posts
    1,493
    When I saw the first pic I thought it was a tear in the "time-space continuum"
    The picture in my avatar is of the Houston Ship Channel and was taken from my backyard. I like to sit outside and slap mosquitos while watching countless supertankers, barges and cargo ships of every shape and size carry all sorts of deadly toxins to and fro. It's really beautiful at times.....just don't eat the three eyed fish....

    ¯`·.¸¸ .·´¯`· .¸>÷÷(((°>

    `·.¸¸..· ´¯`·.¸ ¸.·´¯` ·.¸>÷÷(((°>

    .·´¯`· .¸>÷÷(((°>

    LMAOSHMSFOAIDMT

  10. #10
    Join Date
    May 2012
    Location
    Grand Junction, CO
    Posts
    236
    Quote Originally Posted by WarTurtle View Post
    Must be renters
    I would have thought so too, but its not

  11. #11
    Join Date
    Nov 2011
    Location
    Charleston, Wv.
    Posts
    1,508
    now that you cleaned it, the whole system is gonna die.

  12. #12
    Join Date
    Mar 2009
    Location
    Mid-Mo
    Posts
    3,596
    Quote Originally Posted by 71CHOPS View Post
    now that you cleaned it, the whole system is gonna die.
    At least the blower motor will.

    I had that happen to me once, cleaned the filthiest condenser I had ever seen, compressor locked up the next day.

  13. #13
    Join Date
    Jun 2010
    Location
    Hendersonville,NC
    Posts
    84
    I was on a no heat got there and airhandler was running but barely a wisper of air coming out the vents. I went to check the airhandler filter had not been changed since 2008. When I pulled the filter and you could hear the blower say ahhhh. 2 weeks later we were back to replace the motor.
    Last edited by mrpogo; 01-01-2013 at 09:16 PM. Reason: typos

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