Bryant 80 plus high efficiency gas furnace

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Old 03-21-20, 06:55 PM
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Bryant 80 plus high efficiency gas furnace

Furnace is not igniting. It gives a #34 error code. I have cleaned the flame sensor and replaced the ignitor. The induction fan starts, I hear the gas valve click, smell gas, but ignitor does not glow at all. The old one did not either. I see nothing burned up on the circuit board.
 
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Old 03-21-20, 09:33 PM
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Welcome to the forums.

Bryant 80+ is just a trade name..... not a model number.

You need to troubleshoot the igniter.
You need to check the voltage to the igniter with it connected. You should measure 120vAC when it should be heating. If you don't.... that would indicate a defective igniter relay requiring a control board replacement.
 
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