Question about Goodman Heating & Cooling
I changed the starting capacitor out because the fan would not start, it just made a humming noise like it was trying to start. Now it comes on, but only for a minute, then it shuts off, then starts the cycle all over again. I noticed the motor is getting hot to the touch. I did check some voltages on the board. I have 28 vac from the thermostat. I have 120 volts on the board.
The motor is shutting off on it's overload. Make sure the capcitoris the proper voltage and microfarad rating. Also, make sure two speeds are not hooked up at the same time to the motor, for example if there is a motor lead on the heat terminal, there should not be one on heat/cool terminal. If all checks out good younwill need a new motor
Posted on Jan 01, 2013
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Posted on Jan 02, 2017
SOURCE: Goodman GMP125-5 Air Handler
REPLACE BLOWER MOTOR
if its spinning free until motor is energized motor may have bad armature or brushes.
If you energize blower and manually give fan motor a spin will it start if so replace cap.
Posted on Jan 23, 2008
I had the same problem with a Coleman. The problem is the blower relay. You can find this at http://mobilehomerepair.com
Posted on Oct 21, 2008
You have a limit switch located in the furnace (a little bigger than a dime and located near the center of the front panel, sometimes the switch is mounted to a small fiberglass board) . There will be two wires going to it. They sometimes trip so often that they fail to automatically reset(due to dirty filters or undersized ductwork). You can SHUT OFF POWER TO THE FURNACE, then remove the two screws holding the switch in the furnace, pull the switch out of the furnace and tap on it and wipe it off.
The switch may work a few more times but should be replaced with the same size and type. You will see some rating printed on the switch somewhere. Write down all the numbers and get a replacemet from a furnace/AC supply house. If you have a meter and know how to use it you could check the switch for continuity.
Sometimes just a tap on the switch will get it going. There will also be a couple of rollout switches that could be tripped. They have little buttons on them to reset them. If they trip it may have other issues to be solved.
Hope this helps!
Posted on Feb 01, 2009
SOURCE: goodman gmnt100-4b wont ignite
I had the same problem. I had to remove a return air duct filter that i had installed and it worked just fine. The system needs plenty of air flow to operate.
Posted on Jun 17, 2009
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