Question about Goodman GMS90703BXA Heater

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Need a control board for a gmp75-3 rev 3 goodman

Don't no the manufactor of the board need part no. of board
Anyway its not sensing heat with a clean F S
Thats and old board possibly weak reader maybe ha

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Need the complete model and serial number to get to a site that you can order it through

Posted on Feb 14, 2009

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Need a diagram of Goodman heat pump showing defrost relay area


Turn the power off to the heat pump and get a magnifying glass. There is probably only one board inside the outdoor unit anyway, but look closely through the magnifying glass and you should see a set of tiny needle size pins....maybe two rows of 4 parallel pins. There should be a black plastic jumper across a set of pins corresponding to the defrost length. Near those pins and written on the board there will be something relative to defrost duration. This is why you need the magnifying glass especially if you have any trouble with close up vision.

There is probably not a setting that is adjustable for the intervals between one defrost cycle and the next as they are typically initiated not on elapsed time, but on temperature of the outdoor coil providing input to the board that defrost is necessary.

Jan 08, 2015 | Goodman Manufacturing Goodman GPH1543M41...

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GOODMAN AIR HANDLER, FAN AND HEAT STRIP COME ONLINE WITHOUT DEMAND. WON'T TURN OFF BY TSTAT


the w wire off thermosta controls heat. eithe bad board or thermostat.

Feb 01, 2013 | Goodman Heating & Cooling

1 Answer

Fan is blowing in furnace, thermostat raised 10 degrees over ambient temperature and not heating home. Red and green lights blinking intermittently on control board.


Cycle the power first & see if the furnace goes through the normal sequence of order. On a call for heat, the vent inducer motor should turn on and the pressure switch should prove negative draft in the heat exchanger. the board then should power the ignition phase whenter it is hot surface ignition, or spark, you should hear a spark or see the orange glow of the ignitor & the gas valve is timed to turn on. If you have proper gas to the furnace, it should allow the gas to flow through the gas valve & ignite the flame. Once the flame is ignited, the romote or local sensor should sense the flame & the blower then kicks on from the time delay in the board. If you don't have any ignition, then something is wrong with either the ignitor, ignition module, pressure switch, or you have a manual limit that is tripped(this looks like a small 1/2 inch disc with a reset button on it) If you have ignition & the flame lights, but drops out, then your flame sensor is dirty & needs a touch of sand paper to clean it up(this looks like a 3 inch metal rod opposite of the ignitor) Make sure your power is off when you clean the sensor if you need to. Also if there is no ignition & the vent inducer motor is running... if it is hot surface igniton, there is a molex plug on the leead wires to it- disconnect & check continuity- should be under 110 ohms.

Sep 03, 2011 | Goodman GMS90703BXA Heater

1 Answer

Furnace was working fine and just stopped working...it reacts to raising the thermostat but doesnt actually flame on


This is probably a ignitor.


1. Thermostat calls for heat. 2. Draft inducer motor starts. 3. Pressure switch attached by a small plastic or rubber tube senses the negative pressure produced by the draft inducer and closes. 4. Draft inducer runs for 30 seconds to a minute before you hear a gas hissing sound. The ignitor did not glow, the flame sensor (a small metal probe about 1/8" in diameter, with a white porcelain base) does not sense the flame, so after 8 to 10 seconds the hissing sounds stops with no ignition of gas to heat your home. Your furnace shuts down and goes into a lock out condition until you turn your power switch back off and on again. Then the sequence starts all over again with no ignition of the gas. Solution:You probably need to purchase and install a new ignitor. I would suggest that you inspect your ignitor closely for cracks.Make sure you do not touch the ignitor with your bare hands. If you do not visually see a crack, then you could have a furnace control board problem or a limit, rollout switch problem. Please see "limits, rollout switches & furnace control boards" further down on this page. The furnace's control board might not be supplying the voltage to the ignitor. If your furnace lights and the gas stays on for 8 to 10 seconds, then shuts right back off, then you need to clean your flame sensor with light sand paper or steel wool. You might need a new flame sensor, but most of the time they can be cleaned an will work well after cleaning.
Please leave feedback... Thanks...

Jan 28, 2011 | Goodman GMS90703BXA Heater

1 Answer

The Goodman Heater was installed in 2004. Thermostat set at 75F, the fan that blows CO2 out was on for about 1 minute, then I could hear the sound of the gas blowing into the furnace, but the ignitor...


Problem: Your furnace will not ignite the gas to produce heat for your home. When a furnace has a bad ignitor what I see most of the time is the following sequence of operation:


1. Thermostat calls for heat. 2. Draft inducer motor starts. 3. Pressure switch attached by a small plastic or rubber tube senses the negative pressure produced by the draft inducer and closes. 4. Draft inducer runs for 30 seconds to a minute before you hear a gas hissing sound. The ignitor did not glow, the flame sensor (a small metal probe about 1/8" in diameter, with a white porcelain base) does not sense the flame, so after 8 to 10 seconds the hissing sounds stops with no ignition of gas to heat your home. Your furnace shuts down and goes into a lock out condition until you turn your power switch back off and on again. Then the sequence starts all over again with no ignition of the gas. Solution:You probably need to purchase and install a new ignitor. I would suggest that you inspect your ignitor closely for cracks. Make sure you do not touch the ignitor with your bare hands. If you do not visually see a crack, then you could have a furnace control board problem or a limit, rollout switch problem. The furnace's control board might not be supplying the voltage to the ignitor. If your furnace lights and the gas stays on for 8 to 10 seconds, then shuts right back off, then you need to clean your flame sensor with light sand paper or steel wool. You might need a new flame sensor, but most of the time they can be cleaned an will work well after cleaning.

Nov 30, 2010 | Goodman GMS80903BNA Heater

1 Answer

I have a goodman gmp150-5, and the heat runs for a little while, then shuts off and the blower continues on.. I check the control board and it says 4 blinks OPEN HIGH LIMIT, but when the flame goes...


sounds like the the fan control afc is not working see if afc is clean at the back not clogged with dust and check air filter see if that helps

Oct 14, 2010 | Goodman Heating & Cooling

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

1 Answer

Circuit board blinks four times


check your filter if thats clogged that will send a four flash limit open or your blower motor might be bad these units are known to have popped rings and cracks on thier heat exchangers if there isnt enough airflow if your filter is clogged or motor is shot i would call someone monday and get your heat exchanger inspected

Mar 11, 2009 | Goodman GMS90703BXA Heater

1 Answer

Goodman furnace model #GPO 125_4 REV 8 Installed 6/2/2002


Have you measured the temperature in the suppy plenum? Should be 140 to 160 max. If hotter, you have a blockage in the ductwork or vents closed. If within spec, bad circuit board.

Jun 05, 2008 | Goodman GMS90703BXA Heater

1 Answer

Goodman heating element does not light


The flame sensor is not sensing flame. Inspect the system as it is tying to start and see if the flames are traveling to all burners and hitting the sensor. If not, clean the burner flame rail (the trough the allows the flame to travel from one burner to the next) or if it is hitting the sensor, clean the sensor with steel wool and check all connections from the sensor to the control board.

Jan 20, 2008 | Goodman GMS90703BXA Heater

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