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  1. #1
    Join Date
    Apr 2018
    Posts
    2
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    Furnace trouble after power outage

    We lost power yesterday, so this morning I rented a generator and wired up the 110 bypassing the switch on the side of it. The blower motor turns on when I turn my thermostat to on for fan, but it will not heat. The control board just blinks constantly. Any help would be appreciated.

  2. #2
    Join Date
    Jan 2012
    Location
    Broomall, PA
    Posts
    1,507
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    Probably not properly grounded/bonded, or your generator isn't generating clean power. If it doesn't work when your back on street power, you probably smoked something with a power surge.
    "Sometimes what's right is what's left after you do everything wrong"--Robin Williams

  3. #3
    Join Date
    Nov 2006
    Location
    Athens, Ohio
    Posts
    4,891
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    Many furnaces have a "slow heartbeat" blink showing they have power. A "fast heartbeat" indicates a call for heat.
    There are intermittent blinks for fault codes.
    Are you sure the furnace is receiving a call for heat?
    AOP Rules: Rules For Equipment Owners.

    Free online load calculator: http://www.loadcalc.net/


    There = not here. Their = possessive pronoun. They're = they are
    It's = contraction of it is. Its = the possessive form of it
    Too = also. To = expressing motion. Two = 2
    Then = after that, next. Than = indicates a comparison.
    Questions should end with a question mark "?" Statements end with a period "."

  4. #4
    Join Date
    Apr 2018
    Posts
    2
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    Thread Starter
    How would I find that out?

  5. #5
    Join Date
    Nov 2006
    Location
    Athens, Ohio
    Posts
    4,891
    Post Likes
    We are not allowed to give technical advice in the AOP forums as that is not the purpose of the site. For a consumer/homeowner, make sure the thermostat is set in heat mode and set above room temperature. Beyond that you'll need to call a technician.
    AOP Rules: Rules For Equipment Owners.

    Free online load calculator: http://www.loadcalc.net/


    There = not here. Their = possessive pronoun. They're = they are
    It's = contraction of it is. Its = the possessive form of it
    Too = also. To = expressing motion. Two = 2
    Then = after that, next. Than = indicates a comparison.
    Questions should end with a question mark "?" Statements end with a period "."

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