How do I repair my heating unit?


Help!! My thermostat is set to 72, inside temp is 67. The fan on the unit is working but there’s nothing whatsoever coming on inside. The thermostat read auxiliary heat. Turned it off and back on, now flashes heat. Nothing at all is blowing inside.

  5 answers
  • Joy30150932 Joy30150932 on Mar 10, 2019

    Take a look at the fan belt to see if it is working.

    • Melanie Melanie on Mar 10, 2019

      I haven’t a clue how to even look at it. I know nothing about HVAC.

  • Mona Blake Mona Blake on Mar 10, 2019

    New thermostat needed. I bought Next thermostat. Well wrth the money. Controls from your smart phone and can be locked.

    Nest T3021US Learning Thermostat 3rd Gen (Copper) + 1 Year Extended Warranty

    The old thermostat unplugs and the bew one plugs back in.

    • Melanie Melanie on Mar 10, 2019

      I’ve spoken with a couple of HVAC guys who said could be capacitors or blower? I’m completely ignorant on this.

  • My husband said the coils might be frozen over. Sometimes that happens when they don't get enough airflow.

  • Maynard Maynard on Mar 11, 2019

    Restricted airflow over the coils is caused by a clogged, dirty air filter. How often do you change yours?

    • Melanie Melanie on Mar 11, 2019

      I do my best to change it every 3 months which I understood to be the correct cycle.

  • Maynard Maynard on Mar 12, 2019

    As I understand it by re-reading your original note, you are looking for heat, not AC. Since there is nothing coming from your vents, I'd have to say your blower is not working. Whether the problem is the blower itself, or something electronic that is malfunctioning and not delivering the signal to the blower to operate, I cannot guess. Your best solution is to call a local HVAC company and get it looked at. I urge you to call several and ask what their initial service call charge is, as it can vary greatly. Having said that, remember that cheaper is not always better. Ask friends who they use, reliable and honest are key here, more-so than price. Good Luck.