Results 1 to 6 of 6
  1. #1

    Intermittent Air Handler Failure

    Hi,

    I wonder if any of you here will be able to help me with a mystery that has me and my HVAC service company stumped.

    We live in Alabama and have a Goodman A24 air handler that was installed around early 1998. The heat pump outside is also a Goodman, put in at the same time and as far as I know it is running fine.

    The problem: Every few days, intermittently, the blower will not come on to circulate the cool air. The inside coils seem to freeze up at the same time. It isn't low on freon so they believe the issue is somewhere in the air handler.

    When it happens, if I shut off the thermostat I can hear popping and cracking sounds as (I assume) pressure is being released from the line. I can set the thermostat to heat and bump up the set temp just enough to get the heat blowing, and when it cycles off I can switch back to cool and it's good for another few days.

    The techs think it may be the blower motor, which when "megged out" shows the windings are going bad; or the time delay relay, or even the thermostat. Of course, all this is all guesswork on their part because the problem won't show up when they have come out. Last year they replaced the blower motor capacitor, if that helps.

    Anyway, they have given me the option of 1) replacing all the stuff mentioned, which may or may not fix the problem; 2) replacing just the air handler with a newer 13 SEER Goodman and keeping the heat pump until it dies; and 3) replacing both the air handler and heat pump with a Heil, Goodman, or Carrier system.

    Is it worth it to try to keep our current one repaired for another couple of years? Is it okay to use a new air handler with an old heat pump? If we go new, is there any noticeable difference between Heil, Goodman and Carrier? Any advice or suggestions would be much appreciated.

  2. #2
    Join Date
    Aug 2007
    Location
    Clearwater, Fl
    Posts
    366

    Common problem

    The popping that you hear when you shut the system down is most likely the ice on the coil starting to thaw.

    We have run into intermittent blower operation on several Goodman air handlers in our area. We have been changing out the fan relays now when a customer explains this same problem to us and everything else checks out fine.

    We used to tell the customer to call us when it does it again, that everything checked out O.K., but very rarely do we get to catch the system when it is not operating properly.

    We have not had a callback as of yet just changing out the relay, it seems to solve the problem. The customer, in this situation, is given a money back guarantee if this does not solve the problem.

    Thats what it looks like from Florida. (and of course, I could be wrong)

  3. #3
    Join Date
    Jan 2008
    Location
    BAYOU LAND
    Posts
    697
    Quote Originally Posted by justbrad View Post
    Hi,

    I wonder if any of you here will be able to help me with a mystery that has me and my HVAC service company stumped.

    We live in Alabama and have a Goodman A24 air handler that was installed around early 1998. The heat pump outside is also a Goodman, put in at the same time and as far as I know it is running fine.

    The problem: Every few days, intermittently, the blower will not come on to circulate the cool air. The inside coils seem to freeze up at the same time. It isn't low on freon so they believe the issue is somewhere in the air handler.

    When it happens, if I shut off the thermostat I can hear popping and cracking sounds as (I assume) pressure is being released from the line. I can set the thermostat to heat and bump up the set temp just enough to get the heat blowing, and when it cycles off I can switch back to cool and it's good for another few days.

    The techs think it may be the blower motor, which when "megged out" shows the windings are going bad; or the time delay relay, or even the thermostat. Of course, all this is all guesswork on their part because the problem won't show up when they have come out. Last year they replaced the blower motor capacitor, if that helps.

    Anyway, they have given me the option of 1) replacing all the stuff mentioned, which may or may not fix the problem; 2) replacing just the air handler with a newer 13 SEER Goodman and keeping the heat pump until it dies; and 3) replacing both the air handler and heat pump with a Heil, Goodman, or Carrier system.

    Is it worth it to try to keep our current one repaired for another couple of years? Is it okay to use a new air handler with an old heat pump? If we go new, is there any noticeable difference between Heil, Goodman and Carrier? Any advice or suggestions would be much appreciated.
    very simple problem on that air handler,but cant discuss it on this forum
    anyway just call another contractor,they will help you out
    The government works for me. I do not answer to them, they answer to me.

    we need a few more sheep dogs to keep barking at the wolves,and the stupid sheep

    A well-regulated militia, being necessary to the security of a free State, the right of the people to keep and bear arms, shall not be infringed.

  4. #4
    Join Date
    May 2008
    Posts
    5

    air handler

    well, optimally i would get have another tech. come who could get it fixed but if it costs a lot of money (which i cant give you an estimate because of the rules on this site) i wouldnt do it, and i would replace the unit. And if your gonna replace your air handler your best off replacing the condensing unit as well.

  5. #5
    Join Date
    Jan 2008
    Location
    BAYOU LAND
    Posts
    697
    Quote Originally Posted by forcryinoutloud View Post
    The popping that you hear when you shut the system down is most likely the ice on the coil starting to thaw.

    We have run into intermittent blower operation on several Goodman air handlers in our area. We have been changing out the fan relays now when a customer explains this same problem to us and everything else checks out fine.

    We used to tell the customer to call us when it does it again, that everything checked out O.K., but very rarely do we get to catch the system when it is not operating properly.

    We have not had a callback as of yet just changing out the relay, it seems to solve the problem. The customer, in this situation, is given a money back guarantee if this does not solve the problem.
    Thats what it looks like from Florida. (and of course, I could be wrong)
    since you said it I will agree
    The government works for me. I do not answer to them, they answer to me.

    we need a few more sheep dogs to keep barking at the wolves,and the stupid sheep

    A well-regulated militia, being necessary to the security of a free State, the right of the people to keep and bear arms, shall not be infringed.

  6. #6
    Join Date
    Aug 2007
    Location
    Clearwater, Fl
    Posts
    366
    Quote Originally Posted by HVAC2B View Post
    since you said it I will agree
    Not trying to bash Goodman, just explaining what I have seen around here.

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