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Goodman furnace ignitor works, blower starts up but no flame, no heat ignitor glows then everything stops

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  • John Smith Nov 17, 2011

    Might of hit the wrong button, see comment bellow.
    Thank you.

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  • 117 Answers

Sounds more like a pressure switch problem. If the pressure switch does not make, then the furnace will not attempt to light. Its a safety feature on residential furnaces.

Check the pressure switch and hose for obstructions. Clear any and attempt to re-light. If still not successful, its time to contact a local service company to check the gas valves and electronics.

Posted on Apr 27, 2010

  • John Smith Nov 17, 2011

    Saw a diagram of the pressure switch but couldn't find it. Could you describe it for me? Thank you.

    Have same problem no flame, it's an auto start 2008 version, also couldn't find the model number on inside door. But looks just like that pic up top of page.
    Blinks 2 lights then 3 lights indicating the pressure switch, blows cold air for a minute then shuts off(blowing that is). NO flame.

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1 Answer

Furnace was working fine and just stopped working...it reacts to raising the thermostat but doesnt actually flame on


This is probably a ignitor.


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. Please see "limits, rollout switches & furnace control boards" further down on this page. 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.
Please leave feedback... Thanks...

Jan 28, 2011 | Goodman GMS90703BXA Heater

1 Answer

The Goodman Heater was installed in 2004. Thermostat set at 75F, the fan that blows CO2 out was on for about 1 minute, then I could hear the sound of the gas blowing into the furnace, but the ignitor...


Problem: Your furnace will not ignite the gas to produce heat for your home. When a furnace has a bad ignitor what I see most of the time is the following sequence of operation:


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.

Nov 30, 2010 | Goodman GMS80903BNA Heater

3 Answers

Inductor blower comes on and runs then the ignitor glows flame comes up and burns for approx. 10-15 sec then goes out then fan comes on. Model number is PBKMLB12N0B0F I believe this is a goodman furnace.


I cleaned the sensor that was at the the right further most burner on my Goodman and it worked. got the answer to my problem here at fixya. My burner flame only lasted 5 secs before it shut off. Thanks to all who took the time to send me a response.

Nov 13, 2010 | Goodman Heating & Cooling

1 Answer

Goodman GMP075-3 not igniting. Everything cycles as it should but HSI does not glow. Thermostat is set to heat, temp approximately 10 to 15 degrees higher than room temp, blower motor starts, relay clicks...


The flash code is due to the furnace not proving flame 3 times in a row. If you have a multimeter you can ohm the ignitor out to see if it is good. Depending on the type (silicon Nitride or silicon Carbide) you can verify if it is good. A silicon Nitride ignitor looks like a small thin straight bar type will ohm @ 11 - 18 ohms, a carbide ignitor looks kinda like a tuning fork (sorta) will typically ohm @ 40 - 92 ohms. anything outside of those ranges will require a replacement.

Nov 02, 2010 | Goodman GMS90703BXA Heater

1 Answer

Goodman furnace


you should not need the owners manual. most likely you will find a chart listing the diagnostic codes on the inside of the door to the blower compartment. diagnostics are printed next to the wiring schematic. the most common problem on this style furnace is just a dirty flame sensor. a small piece of fine grit sandpaper and a 1/4" nutdriver is needed. the sensor is located in front of the burner on either the far left or right. be carefull....(do not remove the hot surface ignitor that has two wires). you want the part that has only one wire connected to the sensor under the buner. pull it out and sand the dirt off of the metal rod. reinstall and enjoy your heat

Mar 22, 2009 | Goodman GMS90703BXA Heater

2 Answers

Goodman furnace blinked 1 time


Furnace attempted to start but failed after so manay tries. This may help you.

Sequence of operation, Gas Furnace.

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 ignitor. The ignitor will glow and you will be able to see it if viewed thru the small inspection port. Once the ignitor 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 ignitor does not energize (bad control, bad ignitor), the gas valve does not open or there is no gas (bad gas valve, broken wire, no gas), the pilot does not lite (dirty pilot), the burner does not lite (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).

Most newer furnaces will have a diagnostic center or control built into the control module. You may be able to view it as it is running thru a small viewing port. Some models will require the removal of an access panel prior to finding it. On the reverse of the access panel, there will be a diagnostic chart that will aide you in understanding any error code recorded (usually a blinking light).

This is why we technicians earn the big bucks!

Dec 05, 2008 | Goodman GMS90703BXA Heater

1 Answer

My GOODMAN furnace GMH80703ANAA Starts but quits 5 seconds later


You have a flame sensor that may just need cleaning take out and take fine sand paper or emery cloth and clean

Nov 30, 2008 | Goodman Heating & Cooling

3 Answers

Goodman GMP075-3 ignition problem


Goodman gmp075-3 gas furnace and the flame cycles for 4 sec

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