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04 goodman furnace model GMS8 ciculator blower wont stay on gas fires and runs but high limit trip because of no air from blower any ideas bad motor or control module

Blower runs thirty seconds or so and wont run on fan only

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You need to check the motor amp draw against the spec tag on the motor. If the motor has power to the motor wires it's either the motor or the run capacitor.

Posted on Nov 23, 2014

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Posted on Jan 02, 2017

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Gmp075-3 furnace wont stay lit


Sounds like an airflow issue. Is the return air clean? System is not tripping the limit switch with the door off because it's getting all the air it can handle, with door on its not getting enough air???

Aug 15, 2017 | Goodman Heating & Cooling

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Have a gmp125-4 furance blower runs all the time checked themostat wires error code 1 blink then 2 then 3 then 5 furance works if you turn power off turn back on when heat kickes off blower comes on gives...


Sounds like limit switch issue. Furnace heats up, high temp limit switch opens, fan will stay on. GMP model is older and do not have the codes.
May be over fired, have airflow problem, to cause the limit to open.
Next time before shutting off power, try to find the limit, it has two wires that connect to a 1.5 x 2 inch card mount to the furnace fire wall. tap on it and see if the blower stops. If so replace the limit.

Sep 06, 2011 | Goodman Heating & Cooling

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I Have a beige goodman furnace (old ones) gmp... i replaced the circuit board..it worked fine..then once it reached its desire temprature from thermostat.. fire goes out then 2 min following is the...


Check the pleum high limit switch. Jump this control out and see if the furance runs until the call for heat is satified. Do mot leave the high limit jumperd.

Jan 26, 2011 | Goodman CACF048B2A Air Conditioner

1 Answer

Can I change airflow direction with Goodman GMS8?


I would probably use a furnace for the correct application. However some motors do have a reverse speed connection. Besides the blower speed taps,
capacitor wires and the nuetral wire. There are two wire sets that you can switch that can do this if your blower motor is equipped.

You might experience some airflow problems, probably a lack of airflow, if the furnace was installed
as an upflow model instead of a counterflow.

Feb 17, 2010 | Goodman GMS90703BXA Heater

1 Answer

I have a dyno glo rmc-fa100dlx forced air heater. It will light and work for a few minutes, up to about 5, then it will stop heating and the fan will keep blowing. any ideas? thanks!


If the unit comes on and runs but then shuts down, that sounds like an indication of a high limit trip.

Most, if not all, furnaces have high limit switches that keep a constant check on the temp inside the furnace or air handler. On most systems, once this high limit switch has been made (got to hot), the limit switch breaks control voltage to the heating device (strips, gas, fuel, etc.etc..). The blower motor continues to run until the high limit has dropped in temp and reset itself.

On some models, the high limit is a manual reset, meaning you need to reset the switch yourself or shut the unit off and then back on to reset it.


Check all filters and replace as necessary. Check the coils and fan blades for dirt build-up and cleanliness. Check motor belt (if applicable). If all these fail to solve the problem, then your issue either lies within the blower motor itself not moving enough air for proper heat transfer. Or the high limit switch itself is failing.

Jan 09, 2010 | Heating & Cooling

1 Answer

Carrier 58 Series Furnace Blower Motor Won't Shut Off


Yes. If the high limit is tripped, the furnace will bring on the fan continuously until the limit resets. Often, they will not reset if tripped repeatedly. If the furnace is too large for your application, you probably are not able to move enough air to keep the heat exchanger cool enough.

Oct 03, 2009 | Heating & Cooling

1 Answer

Goodman Model GMNT100-4 Auto Power Down and Up until Temp.


Keep in mind all furnaces and circuit boards are not the same. Look on the back of the door to the blower compartment. You should find the list of diagnostic codes. Look up four blinks it should narrow down the problem. Although from the discription you gave it sounds lie the high limit control. When a high limit appears to be acting up it DOES NOT mean that the high limit needs replaced. The high limit just may be doing its job. This means that the furnace is overheating. Check your filters. Are all of your registers open? Is your blower set on the right speed? Is your blower going bad? Is the blower motor capacitor bad? Is your evaporator coil restricted? Just changing a high limit switch does not always solve the original problem!
Good luck....

Apr 01, 2009 | Goodman Heating & Cooling

1 Answer

Furnace blower blows cold air


It is possible that you did not set the new blower on the proper speed. Black wire is high. Blue is medium. Red is low. If the fan is operating to slow it can run to hot and trip the high limit control. Make sure the filters are clean. When the old motor went bad, the problem might not have been discovered rite away your high limit control might need to be changed.
Also anytime you work on a furnace you can kick up some dust. Always clean the flame sensor.
Good Luck
HVAC Teacher

Mar 08, 2009 | Honeywell Power Humidifier: Furnace...

2 Answers

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possible dirty air filter low air flow causing high temp in fire box to trip limit switch or fan motor is bad hope this help let me know if you if this solved problem I may need more info

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is it a gas furnace? have you checked your filters? when the blower runs continuosly apon start up most of the time it is a limit tripped. Goodman puts 2 manual reset on the side of the blower motor hard to get at , but 1 may be tripped, i have been on 7 service calls and all the same problem filter plugged and limit tripped.

Oct 28, 2008 | Goodman GMS90703BXA Heater

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