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  1. #1
    Join Date
    Nov 2012
    Posts
    12

    Confused Please help this new tech with a heater problem!!

    I am a fairly new maintenance repair technician for an apartment complex in Beaumont TX. I am working on a Goodman electrical Hvac unit. When the resident has turned his heat on at night it wont shut off. He say's he like's the temp at 77*f. The mode is on heat and fan is on auto. He has had to turn the whole unit off on the breaker box. I have replaced the thermostat and heat sequencer from a working unit from another building, (Same model of course.) I tested the system once after the repair, and it kicked off for me as soon as the ambient temp reached 72* f, which is what I set thermostat on.reached the correct temperature. However he claims that at night when he sets the heat to 77* f it just keeps running. Please help!!!!!!

  2. #2
    Join Date
    Sep 2008
    Location
    Western PA
    Posts
    25,551

  3. #3
    Join Date
    Aug 2003
    Location
    Fort Worth, TX
    Posts
    11,317
    Could be the unit can't put out enough heat to raise the interior temp to 77. Is this a heat pump or just straight electric?
    • Electricity makes refrigeration happen.
    • Refrigeration makes the HVAC psychrometric process happen.
    • HVAC pyschrometrics is what makes indoor human comfort happen...IF the ducts AND the building envelope cooperate.


    A building is NOT beautiful unless it is also comfortable.

  4. #4
    Join Date
    Feb 2010
    Location
    In a boiler room
    Posts
    7,068
    77 is hot!! It probably can't reach 77 quickly so he assumes it won't shut off.

    Get a thermometer that records the highs and lows and put it somewhere in the apt overnight and see how hot it actually gets in there.

  5. #5
    Join Date
    Nov 2012
    Posts
    12
    Just straight electric. He says he woke up to 90 in the middle of the night!

  6. #6
    Join Date
    Feb 2012
    Location
    Toronto Canada
    Posts
    1,090
    Don't double post.
    It will not make things happen faster

  7. #7
    Join Date
    Feb 2010
    Location
    In a boiler room
    Posts
    7,068
    You might have to set it to 77 and just sit it out and see if it won't shut off. If it doesn't then troubleshoot it from there.

  8. #8
    Join Date
    Nov 2012
    Posts
    12
    Haha. I was afraid of that. Any other ideas of the top of your head? Thanx guys.

  9. #9
    Join Date
    Feb 2012
    Location
    Toronto Canada
    Posts
    1,090
    Its all good
    Look at the wire diagram and see what is holding the heat mode on or you said you repaired it and it worked you cycled it so maybe this guy thinks your cute and is making things up who knows hard to see over de net.

  10. #10
    Join Date
    Nov 2012
    Posts
    12
    If it doesnt where would you look from there?

  11. #11
    Join Date
    Nov 2012
    Posts
    12
    Ok man Im gonna try to do that. The wiring diagrams are kinda hard for me to read cuz Im still a greenhorn.

  12. #12
    Join Date
    Sep 2002
    Location
    Virginia
    Posts
    3,150
    Install a second T-stat connected to a 220 volt relay to shut off unit

  13. #13
    Join Date
    Nov 2012
    Posts
    12
    That might be better than stressing over this! Wish I could!

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