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-   -   My tempstar furnace won't light and I don't see the hot surf. Ign. Glow nor does it cli (https://www.askmehelpdesk.com/showthread.php?t=433764)

  • Jan 10, 2010, 11:48 AM
    little lenny
    My tempstar furnace won't light and I don't see the hot surf. Ign. Glow nor does it cli
    When I turn on my tempstar furnace my hot surface ignitor does not glow nor do I hear a click like its trying to.
  • Jan 10, 2010, 12:49 PM
    hvac1000
    It could be many different items that is causing your unit not to run.

    Improperly set thermostat

    No power to the unit.

    Unit went out on safety(Turn off main power in the panel then back on and check for proper operation)
  • Jan 10, 2010, 01:00 PM
    little lenny

    OK. Well when I cut on the furnace the blower kicks on but my pilot is not igniting the burners and I am listening for the click but there's nothing. I pulled off the pressure valve and there was a little water, I blew it out and replaced it, still nothing
  • Jan 10, 2010, 01:02 PM
    hvac1000
    When you turn the power on and the blower comes on does the blower just keep on running?

    Did you check and make sure the thermostat switch for the blower is turned to auto instead of on?
  • Jan 10, 2010, 01:07 PM
    little lenny

    Yes and I did set it to auto, no flame
  • Jan 10, 2010, 01:08 PM
    little lenny
    Yes meaning it just continues to run
  • Jan 10, 2010, 01:13 PM
    hvac1000
    There is an electrical wiring diagram on the back side of the blower motor access door. Look to find the high limit safety control. It might be a disc or button control and it will have a small reset button in the center. Sometimes these little controls are hard to find.
    NOTE: Turn off the power before you go feeling around the unit or a shock may follow. When these trip in may cases it causes the blower to come on and run all the time.
  • Jan 10, 2010, 01:17 PM
    little lenny

    OK I'm sorry if I misled you, but my problem is not the blower my pilot won't light, it's a hot surface ignitor. My burners don't come on and the ignitor is not glowing
  • Jan 10, 2010, 01:19 PM
    hvac1000
    I understood exactly just jump through the hoops as I requested. The blower running all the time is a symptom of another problem. Now do you understand? If the high limit is tripped the furnace will not come on at all except for the blower. IE no pilot,no hot surface ignitor,no heat.
  • Jan 10, 2010, 01:20 PM
    little lenny
    I've had and hvac man check it out, he says it could be my smart valve which he says will cost me "$369" which I've found online for a lot cheaper. Or it could be my control board, in all he's trying to get me for 6 or 7 hundred $ and I don't want to be robbed with a butter knife
  • Jan 10, 2010, 01:21 PM
    little lenny
    GOTCHA! Thanks and I am on it!
  • Jan 10, 2010, 01:25 PM
    hvac1000
    Well it could be the smart valve or the control board. Did you look for the limit control??
  • Jan 10, 2010, 01:32 PM
    little lenny
    I don't see any diagram, does the motr need to come out for me to see it
  • Jan 10, 2010, 01:48 PM
    little lenny

    While observing I noticed there was no wire connected to the door trigger switch. Don't know if that has anything to do with it
  • Jan 10, 2010, 01:49 PM
    hvac1000
    2 Attachment(s)
    NO the diagram is usually on the back side of the door for the blower. O well it is an imperfect world we live in.

    You can do without the diagram. Make sure power is off and look for an item that looks somewhat like this. If you find it push in the red reset button,turn power back on and retry to run the furnace.
  • Jan 10, 2010, 01:50 PM
    hvac1000
    No wire to the door switch? Has the door switch wires been spliced together? In some cases it does not make a difference since we know the power is getting to the furnace since the blower motor works. That switch should eventually replaced since it is another safety item.
  • Jan 10, 2010, 02:02 PM
    little lenny

    Don't see anything of the sort, but I took pics, trying to upload
  • Jan 10, 2010, 02:12 PM
    little lenny

    [IMG]ac001.jpg[/IMG]
  • Jan 10, 2010, 02:14 PM
    little lenny
    [IMG]furnace1[/IMG]
  • Jan 10, 2010, 02:38 PM
    hvac1000
    Go to advance then click the paper clip then take pic off location and upload.

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