Heating unit

Discussion in 'HVAC' started by Honeydo...!, Dec 4, 2007.

  1. Dec 4, 2007 #1

    Honeydo...!

    Honeydo...!

    Honeydo...!

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    I have an outside propane Honeywell HVAC unit. The ignitor lights the flame but the gas valves aren't opening nor is the fan coming on. Help please!
     
  2. Dec 4, 2007 #2

    glennjanie

    glennjanie

    glennjanie

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    Welcome Honeydo:
    Your unit probably also has a draft inducer fan that is not comming on and the unit will not work until it is working. There should be a pressure switch on the exhaust and, if it doesn't feel the fan blowing, it locks out the gas valve.
    Look on the inside of the inspection panel for a wiring diagram which will tell you if there is a pressure switch and where to find it. That diagram also tells the route of power through the unit; it is possible to follow that checking the power at each point until you find the failure.
    Please let us know how it turns out.
    Glenn
     
  3. Dec 5, 2007 #3

    kok328

    kok328

    kok328

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    If you have proper voltage to the inducer fan but, the fan isn't blowing, then you've verified the problem.
     

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