Question about Goodman GMS90703BXA Heater

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Heat Starter motor constantly running when ac is on

I have a goodman 125-4 and the heater starter motor never shuts off when AC is on. for now, i have it disconnected. Any idea what is problem?

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By saying the heater starter motor I guess your taking about the combustion blower( the small motor that vents to chimney) If it runs during the A/C cycle then the main circuit board is bad.

Posted on Sep 13, 2008

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Posted on Jan 02, 2017

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Blower runs constantly both warm and cool air


If talking about a hot air furnace check that you dont have t stat fan switch in auto position. As this will run blower continously regardless if calling for heat or cool is has ac also.

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I have two outside ac one for floor and other for upstairs and i button on heater auto and ac outside fan is running is that normal or not? and live on this new house for two years and cant find someone...


No the fan out side is for a condensing unit and compressor. The compressor should not run with the heat. I am almost positive that if this is not a heat pump that the compressor unit should not be running.

Dec 20, 2010 | Goodman GMS90703BXA Heater

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I have a Goodman AR36-1 air handler. when I turn on the AC or the heat the air handler motor comes on for about a minute or two and then shuts off. The heat pump continues running and I can hear the air...


Hello Your motor is shutting of thermal overload because of an internal problem.New motor time,Pull it and match it up the info is on the side of the motor.

Oct 05, 2010 | Goodman Heating & Cooling

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My Goodman ac unit is still running but it just feels like the fan not ac. We don't know the problem but guessing the dual Air conditioning/heat Pump (CapacitorGSC130421AC) is bad. Please advise! Thank you...


If the fan motor on the outside condensing unit is running, but the compressor is not coming on, then yes, most of the time it is just a capacitor. It could also be the compressor has a short or bad valves. If the compressor comes on in the beginning, but shuts off while the fan motor is still running, then you could have a low/high charge, and the unit trips the internal overload switch because it overheats. Hope this helps.

Jul 01, 2010 | Goodman CLQ36AR49 Air Conditioner

1 Answer

The dna 125 wont start


Hi and welcome to FixYa,

Initially, is there an alarm/immobilizer? If yes is it active/enabled?

Offhand, by "...wont start..." do you mean starter motor will not spin or engine turns but will not fire?

Starter motor will not turn:
  • press start button, check for +12 on green/black wire from starter switch to starter relay;
  • if there is, is there a clicking sound?
  • if there is a clicking sound, short temporarily the 2 big terminals of the starter relay;
  • if starter motor turns, starter relay faulty;
  • if not, starter motor needs looking into particularly the carbon brushes and the commutator segments.

Starter motor turns but no spark:
  • check/replace sparkplug;
  • check pulsating voltage on green/white wire going to ignition coil coming from the ignition control unit;
  • check pulsating low AC voltage on green wire going to ignition control unit coming from the pulse generator coil;
  • check presence of IGN +12 leading to the ignition control unit.

Starter motor turns, there is spark but motor will not run:
  • check automatic choke (blue & white/black wires);
  • check fuel quality and quantity delivered to combustion chamber (check sparkplug if wet).

Good luck and thank you for asking FixYa.

Dec 19, 2009 | Gilera Runner VX 125 Motorcycles

1 Answer

Fan speed to hi


The high speed on the fan should only run in AC. The med speed should be used for heat. The black wire on the fan motor is high speed. See if the black wire is connected to the fan relay.

Oct 12, 2009 | Goodman GMS90703BXA Heater

1 Answer

NO HEAT


A blower relay usually has a set of closed contacts that go to the  motor and when the 1st element comes on the power goes on through the sequencer and then these contacts and to the motor heating speed. If you have a blower in AC and with the fan sw to ON u can run the blower on manual 100% of the time until someone can come look at it and the heater coils will cycle on and off with the thermostat. Dont worry about the cost compaird to the elements the motor is nothing and the heat it generates is going into the heated home anyway. 

Feb 28, 2009 | Goodman CPLE24-1 Air Conditioner

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Goodman ac / heat pump


I just had a new unit installed and I am surfing for troubleshooting tips too. My unit is doing the same... cools well heat sucks. my problem has been isolated down to the reversing valve... It is constantly energised which means it is constantly in a/c mode even when kicking on the heat strips... We disconnected a line at the thermostat and it is working well as a heater now. You may want to check yours to see if it is actually kicking over into to heat mode... -rob

Nov 25, 2007 | Goodman CLQ36AR49 Air Conditioner

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