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Goodman furnace GMS90904CXA 3 blink error

Induction motor starts but it does not finish the cycle. It has the 3 blinking light error code. I have checked for a clogged nipple on the motor and ven tested the switches by breathing in and out lightly on tubes and you can hear them click. But low power switch is still stuck open and it just keeps cycling over and over without starting the furnace or finising the complete cycle,

Posted by Anonymous on

  • Lou Barta Nov 28, 2014

    Hi Anonymous, I want to help you with your question, but I need more information from you. Can you please add details in the comment box?

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

Therinnaiguy
  • 1420 Answers

SOURCE: no heat!, light blinks 3 times

Make sure the inducer motor is free of condensation and that all water is able to drain out. Unfortunately your furnace is a lower-grade “builders” model and does not have the same quality of components and workmanship as a Carrier or American Standard furnace. Prior to these failures, It was about 1/2 the price of the units mentioned. And the warranty drops off quickly. You get what you pay for.

Contact Goodman to see if they will cover the cost of your parts at 1-877-254-4729 US only. Their own motto is “Quality Makes the Difference”. It sure does.

Posted on Nov 26, 2007

Therinnaiguy
  • 1420 Answers

SOURCE: Goodman GMS90904CXA Wont ignite, light blinks 3 times

Ok, you either have a inducer fan issue or a pressure switch issue or a plugged vent pipe. The inducer turns on to establish a draft for the exhaust. If it is not working you will get this error code. If the pressure switch does not sense pressure caused by the inducer, it will give this code. If either the intake pipe or exhaust pipe is blocked (even y just a little) it will give you the same error code. If the condensate hose or receptical is plugged, again it will give you this error code. Good Luck!

Posted on Oct 21, 2008

milten1
  • 1304 Answers

SOURCE: goodman gmpn100-4 ignitor lights, burners don't ignite

1 blink is ignition failure
without being able to do voltage checks
i would reccomend checking your igniotor, if you can put an amp meter on it, it should read 2.6-3.4 amps
if you cannot do that, Or check voltages I woudl repalce the igniotor, gas valves do go bad but very few and far between....
at the risk of a bad rating you deserve at least an answer...
if i were called to your house with this complaint I woul not bother comming with out the ignitor
just because the igniotr looks likes its hot,, it may not be hot enough to safely open the gas valve

Posted on Oct 25, 2009

  • 111 Answers

SOURCE: Goodman GS9 propane furnace inducer motor runs continuously

it sounds like the low temp limit switch, the one that cools the furnace down with the burner off and the thermostat open, when it cools to a point the fan stops, the other switch in burner area turns burner off/on, hope this helps

Posted on Jan 31, 2010

  • 3 Answers

SOURCE: pressure switch goodman furnace 100-4 blinks three

2nd question first here: Yes, inducer motor (exhaust fan) must run before gas an fire.
MY FOLLOWING ANSWER WAS COPIED OVER FROM YOUR OTHER POST...
I'm going to assume you can operate and understand a VOM, as well as being able to observe the proper safety procedures for performing service work.

In the case of a control board returning an error code for a failing pressure switch, but the pressure switch actually checks out OK, try this:

Test your exhaust fan power leads for power coming in from the board during the first few seconds at the start of the heating cycle. If power is not showing up there, there is likely another circuit malfunctioning somewhere preventing startup. However, if power is showing up there, then deactivate the system and disconnect the exhaust fan power supply leads from the motor. Test the motor's coil for continuity - a failed exhaust motor coil will result in no vacuum for the pressure switch, hence no heating cycle allowed by the control board.


In my case, the exhaust fan actually failed due to a broken coil lead at the binding post to the push-on connector. I was able to repair the coil lead myself - at no cost - hurray!

Posted on Oct 21, 2011

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I turn the thermastat to heat on my goodman gms90904cxa and the inducer fan does not come on and after a couple of seconds the lights blink 3 times


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Heater unit will not ignite, will note fire up


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Inducer motor kicks on, it runs for a little bit, about 3-5 seconds, then you should see a bright yellow glow, this is the igniter, shortly after, you should hear a click and the gas should start to flow, almost immediately it turns to a blue flame. Then your igniter should turn off and the blower motor start up.

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Goodman GMS90904CXA Wont ignite, light blinks 3 times


I had the same problem, I had to remove the lower black rubber stopper right next to the exaust fan and hook up a drain to the unit, as soon as the water drained out the furnace fired right up.

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1 Answer

Goodman GMS90904CXA Wont ignite, light blinks 3 times


Ok, you either have a inducer fan issue or a pressure switch issue or a plugged vent pipe. The inducer turns on to establish a draft for the exhaust. If it is not working you will get this error code. If the pressure switch does not sense pressure caused by the inducer, it will give this code. If either the intake pipe or exhaust pipe is blocked (even y just a little) it will give you the same error code. If the condensate hose or receptical is plugged, again it will give you this error code. Good Luck!

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the pressure switch is closed before the draft motor closes it.the board is telling you that this is not right.pull the wire(either) off of the pressure switch to see if furnace tries to light.if it does,you should replace the pressure switch.

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No heat!, light blinks 3 times


Make sure the inducer motor is free of condensation and that all water is able to drain out. Unfortunately your furnace is a lower-grade “builders” model and does not have the same quality of components and workmanship as a Carrier or American Standard furnace. Prior to these failures, It was about 1/2 the price of the units mentioned. And the warranty drops off quickly. You get what you pay for.

Contact Goodman to see if they will cover the cost of your parts at 1-877-254-4729 US only. Their own motto is “Quality Makes the Difference”. It sure does.

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