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-   -   Testing control board on heil furnace (https://www.askmehelpdesk.com/showthread.php?t=288381)

  • Dec 4, 2008, 01:36 PM
    jaybirdfree65
    Testing control board on heil furnace
    I have 110 volts going into smart valve but no voltage comeing out to blower motor. Could a bad control board cause this or is it the smart valve ?
  • Dec 4, 2008, 01:55 PM
    hvac1000
    First of all what is the exact model number of your furnace.
    How many flashes is it showing on the control board.
  • Dec 4, 2008, 02:22 PM
    jaybirdfree65
    Quote:

    Originally Posted by hvac1000 View Post
    First of all what is the exact model number of your furnace.
    How many flashes is it showing on the control board.

    Model number is H9MPD125L20B1 3 flashes on smart valve [ green light] thanks
  • Dec 4, 2008, 03:33 PM
    hvac1000
    And what do the 3 flashes mean according to the chart on the back of the blower door? I should have asked before but Heil as changed there flash code and I do not have all the copys.
  • Dec 4, 2008, 03:53 PM
    jaybirdfree65
    Quote:

    Originally Posted by hvac1000 View Post
    And what do the 3 flashes mean according to the chart on the back of the blower door? I should have asked before but Heil as changed there flash code and I do not have all the copys.?

    normal as far as I can tell according to chart. Just not getting power out to blower motor from smart valve. Thanks again for reply
  • Dec 4, 2008, 04:32 PM
    hvac1000
    Dag gone Heil. I will need the exact and complete model number for the gas valve that is installed in the unit. There were more that one offering on there furnaces so post the Honeywell numbers off the valve.

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