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My Goodman gas furnace will run, but will not ignite. I do see a red light blinking three times through the peep hole.

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Hot surface ignitor is my guess

Posted on Nov 03, 2008

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Carrier Weathermaker 9200 Gas Furnace Error Code 31


A month or so ago, I woke up to discover that I had no heat in my house. I went to the furnace to do a diagnostic check, removed the service door and quickly discovered that there was no flame (visible through the glass peep-hole).

I followed the manufacturer's shut-off procedure, which can be found in the manual, here: http://legalectric.org/f/2011/03/carrier-9200-weathermaker-uhe-om58-67.pdf. When I turned the furnace back on, I saw that the igniter did not glow (should be visible through the same peep-hole - should look like a red-hot, 2-prong tuning fork) and that the red LED error code indicator (visible through the lower peep-hole) was blinking 3 short flashes and 1 long flash (error code 31).

Now what I SHOULD HAVE done was check the pressure switch first (see service manual pg. 3, component #16). By removing the rubber lines that connect tot the pressure switch, one end at a time and both at the pressure switch and the bottom of the igniter box, you may notice some debris in the lines or the male adapters on the pressure switch or igniter box. If you do, clear out the debris with a paper clip (don't insert the paper clip into the body of the pressure switch, though). After checking all connections for debris, disconnect the hose that connects to the top of the pressure switch at the "T" between the pressure switch and the igniter box and blow/suck air in and out of the pressure switch (lightly). If you hear a small click when you pass air in and out, that's the pressure switch functioning. If you hear crackling or you can't blow in/out easily, you probably have a bad pressure switch.

if you are able to make the pressure switch click, connect all lines and start up the furnace per the mfg recommendations. If the furnace kicks on, it was probably a blockage in the pressure switch lines (likely if you found gunk in the lines or male adaptors on the pressure switch), but it may still be a faulty pressure switch (my problem... when I blew in and out to the pressure switch, I could hear the silicone diaphragm cracking). I got mine going, albeit temporarily, by removing the pressure switch and passing air in and out (blowing pretty hard) with my lips on the bottom hose adapter until I could hear the diaphragm crackle free and it became easier to make it click on and off. That only bought me a few days, though. After that, I bought a replacement pressure switch at a plumbing supply place and replaced the old one. If you found gunk in the lines, I would suggest you have your furnace serviced and let the tech know what you found and where.

If neither procedure fixes the problem, it may be the igniter. For some odd reason, this issue started for me about a month ago and I replaced the igniter (YouTube video instructions are easy to find), which fixed the problem. If even that doesn't work, call a local tech, shut the gas off and wait around in some thick blankets! I hope this helped!

on Jan 08, 2015 | Heating & Cooling

1 Answer

Problem with Goodman furnace electric ignition


Power is there, or no lights would blink. Steady blinking or flashing three times, stop, three times Etc

Nov 23, 2011 | Goodman Heating & Cooling

1 Answer

I have a goodman propane furnace, model # GMPN080-4 that lights for about five seconds and then cuts off. It does this three times and then stops all together. Tried lightly sanding the flame sensor and it...


The goodman furnace will try and light three time before it faults out for safety reasons. Adjust the flame sensor so that it is closer to the flame or actually in the pilot flame. If the flame sensor is inside the pilot flame and still does not stay lit, your flame sensor is probably defective and should be replaced. You can get one at Ferguson's counter sales.

Dec 12, 2010 | Heating & Cooling

1 Answer

I installed a new goodman unit this past spring. It seems to work ok to good in the day time but the tempature is warmer so we do not need as much heat. At night I know the thermostat is coming on. I...


Heating Mode (Goodman Service Manual)

· The furnace control checks for an open main limit (this
limit is normally closed). If the limit is open, the furnace
will remain inoperable until the limit is closed. During
an open limit the circulating air blower will be
energized. The status light will blink four (4) times.
· The room thermostat reacts to a demand for heat.

· The control will then check to insure that the vent
pressure switch is open. If, at this point, the vent
pressure switch is closed the control will blink two (2)
times and will remain inoperable until this situation is
corrected.

· The venter blower is energized.· The vent pressure switch will close when it detects a
pressure in excess of its setting. If the pressure switch
fails to close the status light will flash three (3) times.

The sequence cannot continue until the pressure switch
closes.

· After a pre-purge of about ten (10) seconds the electronic
ignition device will be energized.

· After a slight delay the gas valve will open.

· The burners will ignite and the flame sensor will detect
the presence of flame. The ignition device will
deenergize. If the sensor does not detect the burner
flame, the gas valve will close and the ignition cycle
will be repeated for a total of three attempts. If, after
the third attempt, the presence of flame is not detected,
the furnace will go into a lockout condition for one (1)
hour. It will then repeat the ignition cycle. This one (1)
hour lockout and retry will occur indefinitely.

· Thirty (30) seconds after the main valve is energized
the circulating air blower will be activated.

· The furnace will remain in operation until the demand
for heat is satisfied.

· Once the demand is satisfied the venter will shut off,
and the circulating air blower will shut off after the field
selectable time off is attained.

· The furnace will remain dormant until the next demand
for heat.

Dec 03, 2010 | Goodman GMS80903BNA Heater

1 Answer

Red led blinking three times, furnace kicks on, runs about 10 seconds gas flow stops and it recycles, heats up runs for ten seconds


check flame sencor is clean or loose connection , or it could be the pressure switch try jumping it out and see if it stays on ,

Nov 10, 2010 | Goodman GMS90703BXA Heater

1 Answer

Goodman furnace new in 07 flashed three code..It


you will neede to defrosted the flue clear any bushes or trees from flue if there ther eshould be a window on the front where you can see the lights hope this helps

Jan 10, 2010 | Goodman GDS80703ANA Open Flame Mid-Size...

1 Answer

My furnace tries three times then red light blinks once


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).

Your furnace has a diagnostic chart on the reverse of the lower panel incorporated in the wiring diagram. One blink tells you that it is a failure but wont tell you where to start looking.

Nov 27, 2009 | Goodman GMS90703BXA Heater

1 Answer

Main Fan won't turn off even with thermostat removed. Burner not


There is a chart with the wiring diagram and othere charts that will tell you what the 6 blinks are for. That should tell you what is wrong and what part you need. Sounds to me like the board has an issue or the gas valve is locked out.

Jan 10, 2009 | Goodman GDS81155CNA Open Flame Mid-Size...

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