Question about Goodman GMS90703BXA Heater

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Will not ignite properly

Diagnostic code blinks 4 times

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How do I light the pilot light? It is suppose light auto but will not . I had the valve turned off during the Summer mo. as I was using the air cond. The gas is on, elect. is on. I can turn the heater on and the small fan will come on and littlered light will blink 3 times but the heater will not ignite. How do I correct the problem?

Posted on Oct 24, 2008

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If you look at the wiring diagram in your furnace you will see that 4 blinks means there is either a blockage of air or your room air blower is not working. Check the air filter for any debris first. Then test the room air blower to see if it turns on and blows enough air prior to going out on code. Are all the dampers open both in the pipes as well as at the registers?

Posted on Oct 21, 2008

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Posted on Jan 02, 2017

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Related Questions:

2 Answers

When you turn the gas control knob from pilot to on it keeps going out takes 3 or 4 times to stay lit when u turn it on


Are you letting the pilot flame heat up the thermocouple for one minute before you try to turn to ON? don-ohio

Jan 13, 2017 | Heating & Cooling

1 Answer

Boiler was underwater in flooded basement, is it really dangerous to try to ignite it after drying out as Peerless manual says?


The manual says this and you are asking me? I'd go with what the manual says or a technician in this field of work.

Jan 09, 2017 | Heating & Cooling

1 Answer

Why won't my forced air kerosene desiel heater stay lit for more than 4 mins at a time when i use desiel?


Diesel takes more air. Have you adjusted it? Flame sensor dirty? Clean it off. don-ohio

Jan 04, 2017 | Heating & Cooling

1 Answer

I HAVE A BAND NEW KFA80DGD MODEL. I USED DEISEL, IT LIGHTS AND FAN BLOWS BUT AFTER A FEW MINUTES THE FLAME GOES OUT AND IT SHUTS OFF. THE INDICATOR LIGHT BLINKS...


there are two different viscosity rates and two different calorific values here
if it worked well on kerosene keep it on that
if you want to use diesel then have a technician come and set it up for diesel

Jan 04, 2017 | Heating & Cooling

1 Answer

Why does the dometic take so long to wash


Hello KAREN DOWLING,

The number 1 reason new generation washers take
EXTENDED times to wash... is the operators
FAILURE to read & heed the need to use te new
HIGH EFFICIENCY DETERGENTS... ("HE").

It may take a while to restore your machines efficiency if this has been going on for a while... USE of common detergents overpowers the sensors that are critical to the
PERFORMANCE of the "HE" washers and it takes
good hot water and proper cleaning agents to restore that efficiency.

There are remedial cleansers that can be purchased and used ...
or the machine my simply NOW NEED REPAIR.

It is ALWAYS best to follow MANUFACTURES
instructions...

The "HE" instruction was not a SUGGESTION...
It was a MANDATE.

Carnac the Magnificent

Jan 02, 2017 | Dometic Heating & Cooling

2 Answers

Cooloing is not coming down from room temperature


The unit needs service. Call a technician! You can:
Check your air filters
Clean outdoor coil by turning off all power at breakers and tstat, clean o.d. coil with water hose
Inspect indoor coil (if you can) for build up or debris
Other than that? May be low on freon. A service tech will cost $ BUT not having the unit service will cost more due to electrical consumption and excessive run times shortening the life of the system.

Jun 24, 2015 | Heating & Cooling

1 Answer

Water leaking out the front of inside unit


It may be tipped too far forward or the drain port is plugged and not allowing the condensation to drain properly.

Jan 23, 2014 | Heating & Cooling

1 Answer

Igniter or gas valve problem


It could be a connector or wiring defect.

Jan 19, 2014 | Heating & Cooling

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