Question about Goodman GMS80904BNA Open Flame Mid-Size Heater

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Will randomly light for a few minutes then shut off. wont come bk

Wont light all the time have power going to the main pcb but not out of the pcb. high limit switch checks out ok. could it be the pcb of fan motor?

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Yes

Posted on Mar 08, 2009

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I have a reznor heater in my garage I have to keep lighting the pilot it wont stay lit.


i have an ole reznor in my garage been workiing for ten + years no problems , mine is gas , the pilot light does go out after it switches to main burner like ten seconds later , but does light back up when thermostat shuts main off ( i had to go look to make sure) not a real big flame maybe like an inch or so , has a spoon shaped air shield around it , maybe yoours is missing ?

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How to fix Raypack that Runs for 2 minutes and then off with PLT on Screen


If your Raypack (mine is a 2100 but most have the same electronic ignition pilot) lights and runs for about 2-5 minutes an then shuts off, you need to clean the pilot sensor. The pilot sensor tells the unit the Burners are running. If the pilot sensor becomes corroded, carbon, etc. the unit will light but will shut off after a few minutes as it thinks the unit is not operating properly. The unit will try to re light, but fail, and then PLT will show on the main programming screen. To fix the probelm, shut off the unit power. Remove the pilot assembly which is located at the bottom right of the unit. There is one screw holding the pilot assembly in place. Gently remove the pilot assembly. There is a fork like probe sensor (not the one with ignition and gas feed) that needs to be cleaned. Take some rough sand paper and clean it thoroughly. Re insert pilot assembly and fire the unit. If this fails, clean the sensor again. Problem solved!

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Gas Furnace Lights for 5 seconds and shuts off - it will do this 3 times


If the burners of your furnace light and go out after approximately 5 seconds, the problem is most likely with the Flame Sensor. The Flame Sensor will develop a light coating that will prevent it from sending a "proof" signal back to the main board. If the main board does not receive this "proof" signal, it will shut off the gas valve. After 3 attempts, it will lock out leaving only the draft inducer motor running. Here is a video demonstrating how to identify and clean the flame sensor to get your furnace back to running normally in only a few minutes.


on Mar 20, 2010 | Heaters

1 Answer

My gas fireplace shuts off after burning about five minutes - both main burner and pilot shut off.


Most fire place burners have an oxygen depletion sensor on them nowadays. If you can restart it after a while, a few minutes or so, and shuts off, it is probably the oxygen sensor. The owner lights fireplace and shuts the door, and the fire depletes the available oxygen and the fire will start producing copious amounts of CO which is a hazard. Most fireplaces have a fresh air supply available to provide combustion air but needs to be opened for the fireplace to work properly. Check the manufactures recommendation as to the proper installation of the fireplace furnace.
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Heater furnace at times wont run properly,


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Feb 14, 2014 | Heaters

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My Goodman model GMS90703BXA has a problem wherein after a cycle, the ventilator / discharge fan doesn't shut down properly. It stays on after the burner has shut off and after the main fan has shut off. ...


Hello, usually this happens when the pressure switch remains open, this could be due to a blocked flue pipe, water inside the tube between inducer motor and pressure switch, or the switch itself is going bad. Condensation can form and leak back to the pressure switch through the tubing and causing an intermittent problem with the inducer motor running continuously

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1 Answer

No flame


Several steps here to check...
turn power off unit and back on
set thermostat to heat
watch for pilot to ignite..igniter should glow orange or cherry red or spark if its a spark type ignitor
Did you see a pilot light ignite?

If not you probably have a bad igniter.

If pilot lit....in a little bit you hear a click of the gas valve opening..then the main burners will ignite

If you see the pilot and the main burner lights but goes out in a few minutes or immediately you may have an issue of the "high limit" switch tripping.

Is the blower fan turning that blows air out of your vents?
are all your vents open in your house? too many times i see homes with almost all vents shut.

Jan 08, 2011 | Goodman GMS90703BXA Heater

1 Answer

Rinnai inbuilt lpg gas fireplace IB35ETR wont ignite. Has good spark but heater does not ignite. LPG is full to large tanks. Other gas appliances are working fine.


You don't mention any error codes displayed. If this is the case I would start with a new main PCB. It should try and light for approx. 10 seconds and then go to lockout with an error code 11 if it was a gas supply issue. This is all controlled by the PCB hence my opinion on a PCB fault.

Sep 16, 2010 | Heaters

1 Answer

Fans on both indoor and outdoor units are running but compressor wont restart, even after turning power on and turning back on. also, if compressor resets and runs, it'll run for a few minutes then trips...


the compresor have delay protection and this wil not alow compresor to run only after few minits (turn off the unit and disconect from the main power suply, wait 30 minits and after that turnit on) or the refrigerant gas in the plant missing. in this case you must call specializated personel to find the leack and fixit, after that they wil refil whit refrigerant gas (r404, r 134, or what your unit have)

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