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The burner never ignites

The small blower kicks on but the burner dosent ignite and the large blower dosent come on

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  • hvacinstall May 11, 2010

    the small blower is your combustion air puller. I assume this is gas or propane? I also assume this is a furnace? more details always help.
    I this in your home? Is it a unit heater in the garage?


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I have a mobilehome gas furnace, and when i put the cover on the blower fan comes on about every ten minutes if i ?

Posted on Mar 17, 2011

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The clicker, sends a small electric spark (like a little lightning) at the tip of the burner. if it doesn't hit the tip, it wont ignite. check and adjust.

Posted on May 11, 2009

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Hi Im having a problem with my furnace. Igniter lights up blower kicks in it ignites for about 10 sec then goes out and blower blows cold air It repeats this process over and over It is now 50 degrees f in...


look for the flame sensor , its a small metal rod in front of one the burners you need to sand it with some sandpaper and it should stay lit. attached is a pic of what it looks like.



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Dec 13, 2010 | Goodman Heating & Cooling

1 Answer

2005 dodge ram 2500 a/c blower dosent kick on replaced the blower variable resistor. checked the fuses still dosent kick on the morot is good i hot wired it to test but only in high what am i missing ?


I am having the same issue. I can wiggle my keys in the ignition when it is not started and get the blower to come on. I am assuming it is ignition relay.

Jun 03, 2010 | 2005 Dodge Ram 2500 Truck

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Just replaced idnitor and flame sensor on a bryant model 376c and its still not kicking on. blower kicks on fans kick on and then cycles off. no heat need help


Make sure all wires are connected and the gas is on. Follow the sequence of operation for this model and a few tips on what could be the issue.

On a call for heat, the 24 volt thermostat sends a signal to the control module. The control module will indicate a call for heat with a light on the control either blinking or remain solid depending upon model. The inducer (exhaust) blower will purge all gasses from the furnace and pressurize a pressure switch. Once the pressure switch tells the module to continue, the electronic ignition will energize and send 120 volts to the igniter. The igniter will glow and you will be able to see it if viewed thru the small inspection port. Once the igniter gets hot enough, it sends a signal to the module opening up the gas valve (24 volts). Either a pilot will come on or the burner tube will ignite then spread the flame to all burners. Lastly a safety sensor will be looking for a certain temperature within a few seconds and the furnace will continue to operate and the room air blower will turn on in a minute or two.

What could go wrong? The unit will not run if there is no signal from the thermostat (bad thermostat or broken wire), the control module does not sense a signal from the thermostat (bad control), the inducer does not energize (bad motor), the pressure switch does not close (blocked vent piping, bad switch, plugged condensate hose), the igniter does not energize (bad control, bad igniter), the gas valve does not open or there is no gas (bad gas valve, broken wire, no gas), the pilot does not light (dirty pilot), the burner does not light (bad burner, plugged orifice, not enough combustion air), the flame does not spread to each burner (bad flame spreader, dirty flame spreader, more bad burners), the flame safety sensor does not detect flame (dirty or bad flame spreader, bad flame sensor, broken wire, bad control), or the room air blower does not energize (bad fan motor, bad control).

Jan 27, 2010 | Heating & Cooling

1 Answer

Furnace not kicking on when thermostat calls for heat


On a call for heat, the 24 volt thermostat sends a signal to the control module. The control module will indicate a call for heat with a light on the control either blinking or remain solid depending upon model. The inducer (exhaust) blower will purge all gasses from the furnace and pressurize a pressure switch. Once the pressure switch tells the module to continue, the electronic ignition will energize and send 120 volts to the igniter. The igniter will glow and you will be able to see it if viewed thru the small inspection port. Once the igniter gets hot enough, it sends a signal to the module opening up the gas valve (24 volts). Either a pilot will come on or the burner tube will ignite then spread the flame to all burners. Lastly a safety sensor will be looking for a certain temperature within a few seconds and the furnace will continue to operate and the room air blower will turn on in a minute or two.

What could go wrong? The unit will not run if there is no signal from the thermostat (bad thermostat or broken wire), the control module does not sense a signal from the thermostat (bad control), the inducer does not energize (bad motor), the pressure switch does not close (blocked vent piping, bad switch, plugged condensate hose), the igniter does not energize (bad control, bad igniter), the gas valve does not open or there is no gas (bad gas valve, broken wire, no gas), the pilot does not light (dirty pilot), the burner does not light (bad burner, plugged orifice, not enough combustion air), the flame does not spread to each burner (bad flame spreader, dirty flame spreader, more bad burners), the flame safety sensor does not detect flame (dirty or bad flame spreader, bad flame sensor, broken wire, bad control), or the room air blower does not energize (bad fan motor, bad control).

Jan 10, 2010 | Heating & Cooling

1 Answer

Heater will not kick on....buzzing sound. Took


You will find an error code chart on the wiring diagram pasted to the reverse side of one of the panels. It will help you to know where to start looking for the issue. I am also sending you the sequence of operation to give you a few more pointers, read on.

On a call for heat, the 24 volt thermostat sends a signal to the control module. The control module will indicate a call for heat with a light on the control either blinking or remain solid depending upon model. The inducer (exhaust) blower will purge all gasses from the furnace and pressurize a pressure switch. Once the pressure switch tells the module to continue, the electronic ignition will energize and send 120 volts to the igniter. The igniter will glow and you will be able to see it if viewed thru the small inspection port. Once the igniter gets hot enough, it sends a signal to the module opening up the gas valve (24 volts). Either a pilot will come on or the burner tube will ignite then spread the flame to all burners. Lastly a safety sensor will be looking for a certain temperature within a few seconds and the furnace will continue to operate and the room air blower will turn on in a minute or two.

What could go wrong? The unit will not run if there is no signal from the thermostat (bad thermostat or broken wire), the control module does not sense a signal from the thermostat (bad control), the inducer does not energize (bad motor), the pressure switch does not close (blocked vent piping, bad switch, plugged condensate hose), the igniter does not energize (bad control, bad igniter), the gas valve does not open or there is no gas (bad gas valve, broken wire, no gas), the pilot does not light (dirty pilot), the burner does not light (bad burner, plugged orifice, not enough combustion air), the flame does not spread to each burner (bad flame spreader, dirty flame spreader, more bad burners), the flame safety sensor does not detect flame (dirty or bad flame spreader, bad flame sensor, broken wire, bad control), or the room air blower does not energize (bad fan motor, bad control).

Dec 03, 2009 | Goodman GMS90703BXA Heater

1 Answer

Burners ignite but then blow backwards w blower


Check your exhaust flue. I think you will find a birds nest or something inside. This causes it to blow back or what they call roll out.

Oct 10, 2009 | Goodman GMS90703BXA Heater

1 Answer

Gas oven not working pilot light is out


1 of 2 things will normally happen and most of the time both things will break. You have two main componets that will wear out 1)your igniter 2)the gas burner tube. Usually what will happen is the gas burner tube allows gas to come out of 3 very small holes-over time and with help from grease, the 3 small holes will turn into a large hole and will allow too much gas to come out and it will destroy your igniter also. Luckly RepairClinic.com sells both pieces in a kit. You can check you igniter with multimeter for continuity (if it is broke-safety kicks in and wont allow gas to work).

May 01, 2009 | Kenmore 30464 / 30465 / 30469 Gas Single...

2 Answers

I have a Dayton gas heater Model 3E225


Does the main blower fan kick on? Also, if the heater is vented outside via a flue pipe, there may be a small (about 3 or 4 inches in diameter) vent fan that kicks on to ensure the exhaust fumes are evacuated through the flue pipe. If there's a problem with that fan, the burner won't light either.

Nov 20, 2008 | Dayton (3E379) Heater

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