Question about Goodman GDS80904BNA Open Flame Heater

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New furnace flame rollout

Just installed a new furnace. i am having a flame rollout problem. i have 2'' exhaust and 2'' combustion air. any ideas?

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Have you checked the venting either on the side of the house or on the roof ? did you or the company who installed it go by the specs on how many elbows and length of the venting run ? It also sounds like you have some blockage somewhere, if your in a climate that has alot of snow or some type of freezing rain, your intake or exhaust could be plugged by ice or snow, if so, a quick solution for this is if you have a shop vac , take the tube and hook it up to the exhaust side of the vac, then place the vac tube into the 2" vent wrap a rag around that to make a better air seal, then turn the unit on, if ice is the problem it will blow it right out ! if this does not fix the problem, I would consult the company who installed it and have them come take a look, should be no charge if the system is new, hope this advise helped, please rate this and let us know how we did, thanks for your qquestion,
mr.grzz

Posted on Jan 25, 2009

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1. Thermostat calls for heat. 2. Draft inducer motor starts. 3. Pressure switch attached by a small plastic or rubber tube senses the negative pressure produced by the draft inducer and closes. 4. Draft inducer runs for 30 seconds to a minute before you hear a gas hissing sound. The ignitor did not glow, the flame sensor (a small metal probe about 1/8" in diameter, with a white porcelain base) does not sense the flame, so after 8 to 10 seconds the hissing sounds stops with no ignition of gas to heat your home. Your furnace shuts down and goes into a lock out condition until you turn your power switch back off and on again. Then the sequence starts all over again with no ignition of the gas. Solution: You probably need to purchase and install a new ignitor. I would suggest that you inspect your ignitor closely for cracks. Make sure you do not touch the ignitor with your bare hands. If you do not visually see a crack, then you could have a furnace control board problem or a limit, rollout switch problem. The furnace's control board might not be supplying the voltage to the ignitor. If your furnace lights and the gas stays on for 8 to 10 seconds, then shuts right back off, then you need to clean your flame sensor with light sand paper or steel wool. You might need a new flame sensor, but most of the time they can be cleaned an will work well after cleaning.

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