Question about Goodman GMS80903BNA Heater

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Goodman gmn100-4 there is power to the unit. i didnt see a flame. was wondering if it could be the ignitor

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DO you see a red/orange glow? if you do the ignitor works, if not could be ignitor, or a pressure issue " once the inducer motor comes on you should hear a click than see a redish glow, if you dont than it is a pressure issue. way to check this is to pull the rubber hose off the switch and lightly **** on it while the unti tries to start if it comes on than something is stopping the switch from closing.I.E. bird in inducer motor or just a bad switch.

Posted on Oct 11, 2008

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Posted on Jan 02, 2017

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Heater does not come on gms80703an


There are too many reasons for this to happen so we would have to narrow it down. The sequence of operation on a Goodman furnace is usually:
1: Inducer draft motor comes on
2: Hot surface ignitor comes on and glows
3: Gas valve opens, lights burners
4: Flame sensor detects flames
5: Blower comes on

If the inducer motor never came on, then you start looking at power to the unit, thermostat issues, or inducer motor issues. Just a few places to start. Hope this helps!

Dec 05, 2013 | Goodman Heating & Cooling

2 Answers

What's your problem? goodman furnace lights, burns 10 secs goes out


Hello,sounds like you have a dirty flame sensor. This is a metal rod on the oppositenside of the hot surface ignitor. turn off power to the furnace and remove the flame sensor, then use steel wool and clean the flame sensor and reinstall. Next turn back power to Furnace.

Nov 18, 2011 | Goodman Heating & Cooling

1 Answer

My gas blows out but igniter doesnt glow orange.


COMMON PROBLEM THE UNIT MAY HAVE A BAD HOT SURFACE IGNITOR .... these often go bad... if you have avolt meter unplug the ignitor and turn heater on see if you are getting 120 volts to ignitor plug...if so then the ignitor is bad and needs replaced....

Jan 02, 2011 | Goodman GMS81405DNA Open Flame Mid-Size...

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 gmnt060 3b doesn't light


check for 24vac between wires on gas valve about 5-10 seconds after ignitor starts to glow. If ignitor does not glow, check for 120 vac to ignitor after inducer goes on.
First...sequence of operation..power to W, inducer motor gets 120v and starts, 10-15 seconds later, ignitor gets 120v and glows, 5-10 seconds, gas valve gets 24v and opens, after 3-4 seconds the flame sensor approves flame and unit stays on. If this is not happening, it has to be in this sequence. Which ever is not happening and you do have voltage to that component, that component is bad. If you are getting a error code on board after it tries to light, pay attention to the code. if a 1 lock out code, that just means it tried 3 times and did not recognize a flame.

Jan 06, 2010 | Goodman GDS80904BNA Open Flame Heater

2 Answers

No Heat Goodman GDS80904BNA


If the hot surface ignitor comes on and fires the burners, and then shuts back down, you need to take a look at the flame sensor. It is a ceramic rod with a metal tip that rests in the pilot flame. When heated from burners, it sends a signal to the main control module, circuit board, which ever this unit is equipped with to keep the burners on. It is a safety to shut the burners down if there is a problem. Take some fine steel wool to clean the metal tip on this and this should take care of the problem. If this does not do it, then 99% of the time you have a faulty control board or module. It will have to be replaced.It is where this flame sensor connects.It will continue to drop out of the circuit, and the fan will start and run. You're T-stat is good or the Hot Surface ignitor would not glow. You will need to take as much info you can from the unit, Goodman and the control, all numbers with you.You can purchase this part at a appliance parts house, or air conditioning parts house. Please keep me informed, I would like to hear back from you. I hope this has given you some direction to follow.Good Luck,
Shastalaker7

Dec 08, 2009 | Goodman GDS80904BNA Open Flame Heater

3 Answers

GOODMAN GAS FURNACE. IGNITOR GLOWS, GAS FIRES FOR 3-4 SECONDS THEN SHUTS OFF..CYCLES OVER AND OVER. SOMETIMES IT STAYS ON...THEN SHUTS OFF BEFORE TEMPERATURE GETS UP TO THE STAT SETTING...


I suspect that the flame is not traveling to all the burners within a given time so the flame sensor is shuting down the gas valve. Clean out the flame rail where the flame travels and carefully brush off the flame rod with an old tooth brush.

Oct 19, 2009 | Goodman GMS90703BXA Heater

1 Answer

I have a goodman gmpn 100-4 REVB furnace that will not stay lit


If the igniter lights the burners the ignitor..... is not bad. Its like a light bulb.... it works or ot doesn't.
You are describing a dirty flame sensor. Dishonest contractors will sell you a new ignitor but clean the flame sensor when the are installing the ignitor. It is located at the opposite end of the burners than the ignitor. It has one wire going to it. Remove it and clean the rod with a piece of fine grit sandpaper. this should be done every year before heating season.
Good luck

Mar 28, 2009 | Goodman GMS90703BXA Heater

1 Answer

Central Heating - Ignitor starts but no gas


Check the flame sensor near the ignitor....it could just be dirty. Check that first. Check the electrical connections to it. Also, check the flame sensor's position. It must be within the correct proximity of the ignitor to tell the gas valve to open. Make sure the gas is on to the unit.

Mar 15, 2009 | Goodman GMS90703BXA Heater

3 Answers

Goodman GMP075-3 ignition problem


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

Oct 01, 2008 | Goodman GDS80904BNA Open Flame Heater

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