Question about Goodman GMS90703BXA Heater

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Heater wont start Goodman GMP075-3

Light blinks 3 times. Check flue and pressure valve, both negative. It says to check the ventor next. What and where is that??

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  • Saulc Mar 19, 2009

    my furnace blinks 4 times high limit open not sure what to do



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Check the fuse on the board. It is a 3a automotive fuse. There may be a problem in the control wiring. If the fuse is blown, make sure to find the reason why it blew and repair it. Otherwise you will need a whole bunch of fuses.

Posted on Dec 31, 2008


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LED light blinks 6 times. I checked the flue and air inlet....the are clear.

What code does the LED indicate ? If pressure switch problem, chech the tube from pressure switch to the flue pipe make sure it is clear and no obstructions.

Oct 28, 2013 | Goodman Heating & Cooling

1 Answer

Replaced pressure switch, ventor and unit still goes off on pressure switch. 3 flashes

Hello, check the small tubing that goes from the pressure switch to the inducer motor, sometimes it could be loose or blocked therfore not allowing the switch to close. Also, there could be some obstruction in the flue pipe preventing the switch from closing.

Jan 26, 2011 | Goodman GMS90703BXA Heater

1 Answer

My Goodman furnace, model GMS80903BNA, is not working. I removed the back panels and checked the pressure switch. That seems to be working fine. The exhaust inducer spins up, the igniter starts to glow,...

That blinking 3 times is indicating a pressure switch problem. Try checking for water or a blockage in any of the hoses going to the pressure switch or condensate drain. Check the air intake and exhaust pipe for any blockage including any saggs that may hold water. Make sure condensate drain or pump is working. If you get a glow from the igniter, there may be a blockage in the gas valve or piping.

Jan 23, 2011 | Goodman GMS80903BNA Heater

1 Answer

Furnace comes on flames up and blower starts then cuts off red light blinks 6 times

try looking at the air filter see if this is blocked, reset overheat button press red top check if fan on the flue is running , check if flame senser is clean or conection is loose , see if that helps

Oct 18, 2010 | Goodman GDS80904BNA Open Flame Heater

1 Answer

Goodman GMPN060-3 Furnace will not stay lit.has new Flame Sensor & Control Board.All Switches check Good? Help!!

possible faulty gas valve if all fail safes stay closed. make sure flue is clear for pressure switch to stay closed.

Dec 16, 2009 | Goodman GMS90703BXA Heater

2 Answers

Pressure switch problems

Yes, check for obstructions. However, also check to ensure that you used an OEM pressure switch! See this video for an explanation: Amazon Furnace Parts:

Oct 06, 2009 | Goodman GMS90703BXA Heater

1 Answer

Goodman GMP075-3 Random Incomplete startup

If the draft motor starts then shuts right off and then a red light comes on usually means that there is a blockage somewhere. Check the pressure switch line, make sure that it is clear and the hole in the heater that the pressure switch vaccum line runs to is open. If that checks out then make sure that your flue vent cap is on and that it is not pressed down on the flue vent and that the gases can vent properly

Feb 13, 2009 | Goodman GMS90703BXA Heater

1 Answer

Goodman heater not turning on

If your pressure switch is clogging then you need to check the flue pipe make sure it is not rusting. If it is the flue should be replaced and also think about replacing the pressure switch. Check your high limit switch also. If the pressure switch goes sometimes it pops the high limit

Feb 12, 2009 | Goodman GMS90703BXA Heater

1 Answer


You should check the vent cap, it seems like the exhaust is unable to get out. If you exhaust fan was bad the unit would not start at all. And it would never spin

Feb 07, 2009 | Goodman GMS90703BXA Heater

1 Answer

Heater wont start

does inducer motor come on?motor will be right below flue pipe inlet.if so make sure pressure switch closes.pressure switch tube could be kinked.also make sure furnace has good ground.sometimes not being grounded will cause this

Dec 31, 2008 | Goodman GMS90703BXA Heater

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