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Fan blows, gas flows, ignitor lights, gas burns only for a few seconds then kicks off, repeats a few times then shuts down

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Check the circuit for the draft inducer fan motor. The centrifugal switch in the motor may be shutting down. This stops power to the gas valve.

Posted on Nov 21, 2009

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1 Answer

Goodman GDS80904BXBB keeps locking out


Clean the flame sencor , or ot could be the pressure switch blow down the hose they may be blocked .

Mar 20, 2013 | Heating & Cooling

1 Answer

My furnace blows but shuts off and green light flashes


YOU MOST LIKELY NEED A NEW THERMOSTAT. You need to make sure you get the correct one they are not all the same.. you will also need to set how long the fan stays on after its stops heating the ducts If you have your owners Manuel look and see what kind it calls for. If your talking about a manufactured home it will be with all of correspondence.. I hope this was helpful and the green light is good but not blinking

Dec 07, 2012 | Heating & Cooling

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I have a Goodman gas furnance. The furmance kicks on the glow rod lights and then the furnance shuts down after about 60 seconds it goes through the same cycle. The burners never come on. What's wrong?


Let's trouble shoot a few possibilities:

Can you confirm that your gas pressure/ supply is correct-- by lighting all of the range top burners at the same time-- Do they all light quickly, and burn to full height, without much of any yellowing at the flame tips? That should indicate you have god gas pressure and supply.

Now-- in the Oven itself-
When you light the BROIL burner-- does it's glow ignitor light up, and does that burner light off OK?

If it is only the main oven burner that is not lighting, are you able to remove the cover plate that covers it, and watch it light off? -- Any clues on whether or not the gas valve even open?

If NO gas flow, likely you need a new Main Oven Gas Valve-- Probably need to call your Gas Appliance service person.

Let us know if this helped

Mack B

Jan 23, 2011 | Goodman GMS90703BXA Heater

1 Answer

Rheem 90+ NG Furnace. When furnace starts, draft inducer starts, ignitor glows and gas ignites. Burners stay lit for 10 seconds or so, then the flame reduces for a few seconds then goes out. Main blower...


Check the draft inducer air switch ( vacuum diaphragm switch) If the switch is opening when the burner starts, you might have a blockage on air piping coming into the furnace. Also prime the condensate trap on the condensate drain from the combustion fan. Also check the gas pressure, if your gas pressure is dropping, the gas pressure switch will shut it down. If it's too high the moment it comes on could raise the pressure in the furnace dropping out the combustion fan proving switch.

Oct 29, 2010 | Electric Circuit Breaker Kit for Furnace

1 Answer

My vulcan ducted heating unit blows cold air for approx 1 minute when turned on then stops and try's again after approx 1 minute,it does this several times until ignited.It is obviously an ignition...


Two things have to occur here:

1) The ignitor has to light off the gas. A bad ignitor, or dusty burners can prevent ignition.

2) The thermocouple has to be in the flow of burning gas to prevent a safety shut-down, and has to be working.

And the obvious: you need pressure in the gas line, and the gas valve needs to be open.

Hope this helps you locate the problem!


Aug 14, 2010 | Vulcan AUW230A Heater

1 Answer

I have a freezer that does not work it clicks on for a few sec then cuts off what could be wrong


The clicking is the electronic ignitor trying to light the gas.
Either it's not getting any gas to light , or the flame sensor is not telling the computer that there is flame , so it shuts down the gas.
Most fridges have a small shut off right at the gas valve in the back of the fridge , it might be turned off. Put your ear up to the back cover of the fridge , if you hear it sparking and then you hear flame but it goes out after a few seconds , than it is the flame sensor. If you never hear the flame blowing , than it is not getting gas. Could be several different reasons. If you have disconected your tanks , maybe the gas has just not made it to the fridge yet. Newer ignitors try 3 times and then shut down if no flame is detected. Old ones only try once.

Apr 27, 2010 | Thetford Norcold RV Cooler/Freezer

1 Answer

H400FDN... Lights... burns for 5 secs... turns off... repeats...


Pull your heat tray and clean burners and check for rat nests. A common cause of this is spider webs in the gas orfaces on the supply pipe. If you remove the brass orfaces they may have small,small,small tiny webs inside them oyu can blow out or clear with a toothpic. they dirvet the gas from the main burner (the one with the ignitor) as the gas builds it will poof and start but then the other burners that have gas flow won't be close enough to let the ignitor read flame so it will cycle just like you describe. My kingdom for a toothpic. I have made a tool to do this out of a stripped wire bent just so with the end roughed up to catch the webs so I didn't have to pull the tray on heaters with this proble. You should pull the tray and see the whole problem to understand it better.. I hope this helps and good luck.

Oct 02, 2009 | Hayward H Series Pool & Spa Heater 400k...

1 Answer

I have a problem with my heating system. It is about 10 years old and has had the ignitor, combustion blower motor, and programable thermostat replace in it's lifetime. The system worked great last year....


sounds like its not proofing flame. it has a sensor usually like a needle sticks out into the flame that tells the gas valve the flame lit and is burning so its ok to keep sending gas, if its fails to proof flame then burner shuts down, then it tries to relight 3 times then locks out on fail safe. the blower will sometimes run continually once that occurs to highlight a failed condition. every time you reset it will try again 3 times then shut down. lp gas is very dangerous, even i do not work on it as the gas acts like gasoline and lays around. not like natural gas that disperses well. if you see the flame sensor try gently cleaning it with a little emory cloth. also a loose ground can cause this. check tio be sure any green wires are snug , they actually flow volts to ground through the flame on some to proof, thats why no ground no flame. if that fails then the board is most likely problem. change wire for wire , or get generic replacemant and follow directions exactly. good luck.some ignitors act as a flamre proofer as soon as they are done igniting! rarely do they fail to perform both funtions.

Nov 20, 2008 | Heating & Cooling

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