blower will not come on in heat mode...
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  1. #1
    Join Date
    Oct 2005
    Location
    georgia
    Posts
    1
    hi, i just fired up the furnace today and discovered that the heat will not blow thru the vents....i checked and the burner on the furnace is coming on and when the temp gets too hot the high limit control is cutting it off, without the fan ever coming on..... I had the fan relay replaced this past summer after an electrical power outage and it blew when the power came back on...... the fan comes on fine when i place the t-stat in the cool mode..... possible that the high limit control is bad? If so how do you go about checking one of them??? I have extensive know how in the use of a volt ohmeter. any advice would be greatly appreciated.

    Dan

    P.S. it is a Rheem furnace Model # RGAA-0800 Serial # EN3D104 F2777 6301

  2. #2
    Join Date
    Mar 2005
    Location
    South/West of Quebec in the other part of Canada
    Posts
    2,331
    I know exactly what is wrong, but it is against the rule to tell you. This is a furnace you are dealing with, call a PRO.

  3. #3
    Join Date
    May 2005
    Posts
    64
    hey its not a hard problem but call a PRO and remember they rules of the site no DYI

  4. #4


    Welcome to HVAC TALK. However this site has rules against giving out technical advice to DIY'ers. I have attached a link below for your convenience.

    Here's something to think about though...

    When was the last time you had that unit cleaned and inspected?

    Now you have a problem with the unit. Fuel costs are skyrocketing.

    So why not call in a professional to repair the unit? While they are there they can clean and inspect your unit to insure a safe living environment for you and your loved ones. Not to mention, having an efficient running system could save you more than the cost of the service.

    What's your safety worth? I'm guessing more than the repair bill.

    Thanks for your understanding.

    (we can't help DIY, due to site rules )

  5. #5
    Join Date
    Apr 2003
    Location
    Eugene, Oregon
    Posts
    1,209
    Originally posted by jultzya


    Welcome to HVAC TALK. However this site has rules against giving out technical advice to DIY'ers. I have attached a link below for your convenience.

    Here's something to think about though...

    When was the last time you had that unit cleaned and inspected?

    Now you have a problem with the unit. Fuel costs are skyrocketing.

    So why not call in a professional to repair the unit? While they are there they can clean and inspect your unit to insure a safe living environment for you and your loved ones. Not to mention, having an efficient running system could save you more than the cost of the service.

    What's your safety worth? I'm guessing more than the repair bill.

    Thanks for your understanding.

    (we can't help DIY, due to site rules )
    Is this a one click quote? Maybe you should share it with some folks on the pro's forum it would make explaining easy. Nice job!
    Proud supporter of Springfield Millers and Oregon Ducks.

  6. #6
    Originally posted by millerman
    Is this a one click quote? Maybe you should share it with some folks on the pro's forum it would make explaining easy. Nice job!
    Yes, I have several saved. It saves a bunch of time.

    I modify them a little for different posts.

    Thanks

  7. #7
    Join Date
    Feb 2004
    Posts
    2,597
    according to the serial number, the furnace was manufactured in 1977. it would be a wise move to have a pro give it a thourough safety inspection.

    then, diagnose the problem at hand.

    good luck.

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