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Old 11-04-2010, 09:06 PM   #1
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Bryant Gas pack Burner problem


I have a two burner unit. Recently the draft inducer had corroded. After that repair the unit would fire up with both burners then one would go out. Gas still flows through the burner that is out. I have a new board, flame sensor and gas valve. Help!

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Old 11-05-2010, 03:36 PM   #2
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Bryant Gas pack Burner problem


Good chance. The manifold, orifice, and burner need cleaned. maybe even the whole furnace needs cleaned. Are the burner cells rusty.

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Old 11-07-2010, 09:53 PM   #3
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Bryant Gas pack Burner problem


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Good chance. The manifold, orifice, and burner need cleaned. maybe even the whole furnace needs cleaned. Are the burner cells rusty.
I did clean the orfice and burner. The unit did sucessfully fire up, but with a lower gas flow/lower btu's than it should be. Would some rust deposit within the exchanger be the reason. Or is the draft inducer not forcing enough air through the exchanger. Note: The wheel on the draft inducer was corroded.

Thanks Sir
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Old 11-08-2010, 03:09 AM   #4
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Bryant Gas pack Burner problem


Rust in the cells indicates that its not burning as hot as it should. Dirt/rust in the cells won't make it burn lower. Your gas valve may need adjusted or replaced.
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Old 11-08-2010, 12:51 PM   #5
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Bryant Gas pack Burner problem


"New gas valve". When gas flow is increased the flame becomes spiratic or not as uniform, and sometimes goes out. I will clean the exchange tubes. It seemed that the rust came from water intrusion (maybe exhaust area) Thank you sir. Any other thoughts are much appreciated. I will keep you posteda as with a decreased flow of gas.
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Old 11-09-2010, 04:30 AM   #6
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Bryant Gas pack Burner problem


Gas pressure shouldn't be adjust without using a manometer to know what the pressure is, and if your within the allowable limits of the furnace.

The rust may be from the valve under feeding gas, or too much combustion air. Or from too much air flow over the heat exchanger. But its generally a sign of improper burner set up.
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Old 11-09-2010, 11:25 AM   #7
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Bryant Gas pack Burner problem


Thank you!
From gas valve to burners seem ok. I did initially clean the orfices and the burner housings.

But I need to replace the draft inducer housing and blower wheel. They were very corroded.

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