Ask Experts Questions for FREE Help !
Ask
    riser29's Avatar
    riser29 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Feb 7, 2009, 09:41 AM
    Byrant furnace
    I have a byrant furnace that went out. Checked the igniter put everything back together and it worked fine for about four hours. Now when the thermostat calls for heat the blower motor comes on but the draft motor will not come on or the thermocouple. The induced draft motor is only getting three volts from the control board. I feel that it might be the control board, but is there anything else it could be?
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Feb 7, 2009, 06:41 PM
    3 volts at the board for the inducer will not get it.
    mygirlsdad77's Avatar
    mygirlsdad77 Posts: 5,713, Reputation: 339
    Plumbing Expert
    		  
    #3

    Feb 7, 2009, 06:47 PM

    Going to need 120v for inducer, but I am concerned about you working on this yourself when you mention a thermocouple on a draft induced furnace. Can you please explain what you are calling the thermocouple. I would start by jumping r and w at the board, see if inducer comes on. If it does, you have either bad thermostat or thermostat wiring. Please let me know what you find.
    KC13's Avatar
    KC13 Posts: 2,556, Reputation: 99
    Ultra Member
    		  
    #4

    Feb 8, 2009, 09:20 AM
    What's the model #?
    T-Top's Avatar
    T-Top Posts: 1,871, Reputation: 100
    Ultra Member
    		  
    #5

    Feb 8, 2009, 06:31 PM
    Check for a open limit(roll out,high temp,blower, etc). If you have a open limit the blower will run all the time and nothing on the heat side of the furnace will work.
Not your question? Ask your question View similar questions
 

Question Tools Search this Question
Search this Question:

Advanced Search

Add your answer here.


Check out some similar questions!

Goodman furnace GMNT080-4 furnace runs good for a while then has to be manually reset [ 5 Answers ]

I have a Goodman GMNT080-4 (90%). I'm having the same problem As Streatherg did back in the Nov 2006 question. I reviewed his article and tried Every thing on there but seems to be doing the same thing. The furnace kicks on for about an hour then locks out and has to be manually reset threw...

Furnace ignites but blower won't start till furnace shuts down. [ 7 Answers ]

(Nordyne/Miller G3RA)-I have a furnace HSI(glow plug) that will ignite and burn until it gets too hot and shuts down. As soon as the furnace shuts down the blower starts to circulate air. The blower circulating air cools the furnace and it reignites.Shortly after the furnace ignites the blower...

Byrant Plus 90 furnace will not relight [ 6 Answers ]

I have a 1987 Byrant Plus 90 furnace. The other day the wheel on the inducer motor lost a couple of blades. I replaced it installed a new wheel and the motor. Plugged everyhting in but the pilot light would not stay lit. I removed the cover cleaned the pilot light area and the gas orfices. The...

Byrant heater will not light [ 1 Answers ]

I have a bryant heater that will not light Model #394GAD036100. I think it s the ignitor as I had to relight it before but I am not sure

Furnace not heating the house. Damper on the furnace not opening. Motor then shuts. [ 4 Answers ]

My forced-air furnace is not working correctly. The gas works heating the air in the furnace, but When the motor starts the damper doesn't open and the Motor shut down. I need suggestions?:mad:

View more questions Search