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  1. #1
    Join Date
    Dec 2005
    Posts
    6
    Replaced a bad flame sensor but now my hsi is continuously blinking. The thermostat does not prompt any activity from the furnace unless I pull one of the leads froom the limit switch. Then the internall blower comes on immediatly but no gas, spark or flame. However at that point the hsi gives me the 4 blinks to indicate limit switch problem...Hmmmm

  2. #2
    Join Date
    Nov 2000
    Location
    Eastern PA
    Posts
    68,940
    If this is not a joke, definitely call someone that knows what they are doing and at least knows the terminlogy of the product.
    Government is a disease...
    ...masquerading as its own cure…
    Ecclesiastes 10:2 NIV


  3. #3
    Join Date
    Mar 2005
    Location
    Suppy NC
    Posts
    4,513
    not enough info
    i can say sounds like you have done all you can do
    time to call a pro and have the unit fixed and service

  4. #4
    Join Date
    Feb 2004
    Posts
    2,597
    why did you replace the flame sensor?

  5. #5
    Join Date
    Dec 2005
    Posts
    6
    Not a joke. Have fixed this and others many times but am stumped by this one. Replaced the flame sensor because unit was lighting for 30 seconds or so then cutting off..trying again doing same. I replaced the sensor two years ago succesfuly and problem was fixed this time, no luck.

  6. #6
    Join Date
    Feb 2004
    Posts
    2,597
    if the hsi is blinking, then replace it too.

  7. #7
    Join Date
    Nov 2000
    Location
    Eastern PA
    Posts
    68,940
    You need professional help.
    Government is a disease...
    ...masquerading as its own cure…
    Ecclesiastes 10:2 NIV


  8. #8
    Join Date
    Dec 2005
    Posts
    6
    btw..robotec
    I was an electronic tech in the military for years and know my way around a schematic. By passing the limit switch as a pratical test is not inherently risky.

  9. #9
    Join Date
    Sep 2004
    Location
    Memphis
    Posts
    2,502
    Originally posted by piccolo
    The thermostat does not prompt any activity from the furnace unless I pull one of the leads froom the limit switch. Then the internall blower comes on immediatly but no gas, spark or flame. However at that point the hsi gives me the 4 blinks to indicate limit switch problem...Hmmmm
    It almost sounds like you were expecting it to start sparking & the gas to come on & light the flame when you pulled the wire off of the limit switch.
    Life is like a jar of jalapenos. What you do today might burn your ass tomorrow.

  10. #10
    Join Date
    Feb 2004
    Posts
    2,597
    what, the French army?

  11. #11
    Join Date
    Nov 2000
    Location
    Eastern PA
    Posts
    68,940
    This has gotta be eddy again. Geez, don't you ever get bored with being boring?
    Government is a disease...
    ...masquerading as its own cure…
    Ecclesiastes 10:2 NIV


  12. #12
    Join Date
    Dec 2005
    Posts
    6
    Ok..
    Firstly..
    If a switch of any kind is stuck, bypassing that switch (temporarily) for the purpose of checking the status of the rest of the system is not out of left field and in this case the suggestion of another HVAC "tech".
    Secondly..
    RoBoTech..if brand bashers give the industry a bad name, how about elitist service techs.
    and lastly,
    Bilva..I can tell you never served a day in your life to be so rude about the issue. The French wouldn't have you!
    So can anyone give me a little guidance and a little less sh**?

  13. #13
    Join Date
    Feb 2002
    Posts
    3,182

    Wink

    Originally posted by piccolo
    Replaced a bad flame sensor but now my hsi is continuously blinking. Hmmmm

    I can honestly say that a "constantly blinking HSI" is something I've never come across.

    My thinking is that you need to go elsewhere so you can be with people that can help.

    [Edited by htg guy on 12-05-2005 at 07:02 PM]

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