Question about Goodman Heating & Cooling

1 Answer

Goodman GMH95 furnace getting code 3.

Not turning on at all. Anyone has suggestions? I have already check for cloggs and all clear. I hear a humming when I turn on the plug switch so power is coming. I even used a drill to test to see if they outlet works and it does. All electrical seems to NOT be loose. Thermostat is working properly and the fuse inside the furnace is still good. Fuse in the main fuse box still good too. Any suggestions before I fork out money. This unit is not even 3 years old.

Posted by on

  • 1 more comment 
  • Kong Vang Jan 13, 2013

    Furnace does blink, throws a code 3. Thermostat seems to work correctly. When setting heat to come on you can hear a click. My thermostat and furnace is less than three years old. Had all of this done when I bought my house new by a contractor. Can\'t call him now as he\'s not in business anymore. 7 degrees this morning what a great timing.

  • Kong Vang Jan 14, 2013

    Also the blower is not on. All I hear is a soft low humming noise. Even when I turn on the thermostat to "fan on" nothing comes on. Youtube usually has answers for me but not on this one.

  • Kong Vang Jan 14, 2013

    help help help lol. Tomorrow after work I am calling a tech. Hope to fix it myself before then. Don't really have the extra cash for throw around but will probably end up doing it unless there's a miracle. Thanks.



1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert who has answered 200 questions.

  • Expert
  • 305 Answers

Humming noise from motor means it is seized

Posted on Jan 06, 2014

  • Scott Corey-reid Jan 06, 2014

    or run capacitor is shot



5 Suggested Answers

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Accurate Joe
  • 61 Answers

SOURCE: Goodman GMP075-3 ignition problem

Test while the unit is firing with a meter. you should have 24 volts going to gas valve. If you do and no gas is coming out, you have a bad gas valve. You will need a gas pressure test kit to install a new one correctly.

Posted on Dec 01, 2008

  • 1 Answer

SOURCE: Goodman GDS8 Furnace Won't Cycle

I had the same issue as zippygaloo with the harness plug. By lifting up the connector, the furnace would go out of it's current fail mode and start operating normal again. I have temporarily resolved my issue, by tying up the wires (looped under them with tie raps) and secured them to the vented furnace housing directly above, thus alleviating any stress pulling down on the connector plug by the weight of the wires. Since doing this my furnace has been running flawlessly and stays right at the temp on the Tstat. No more fault modes with blinking lights! Hope this helps you guys. I don't know if it's related to bad design flaw, or there is a weak connection on the board, but it worked for me.

Posted on Mar 01, 2009

  • 1 Answer

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

  • 29 Answers

SOURCE: Goodman furnace

double check your wiring. R terminal on the furnace will provide 24 volts to the t-stat. W terminal in the t-stat will send 24 volts back to the furnace W terminal to turn on the heat. G terminal in the t-stat will send power to the G terminal in the furnace when the t-stat is switched to fan on. Y terminal in the t-stat will send power to the Y terminal in the furnace which in turn will send 24 volts to the A/C outside. The C terminal in the furnace should be connected to the c terminal in the A/C outside as well as to the T-stat. Check the fuse again

Posted on Jun 21, 2009

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Goodman gmh95 furnace wont ignite

try the pressure switch you may be able to jump it out and see if it lights

Oct 01, 2016 | Goodman Heating & Cooling

1 Answer

Goodman gmp100-3 furnace The furnace will not start when I turn power on. It will hum but no click. The status light is solid red. Could the ignitor be bad? And what color should it be?

You should hear the ignitor pop. If you don't hear that pop sound, then the igniter is bad. They are easy to change, just make sure you turn the gas off and the pit-cock into the appliance and take a photo of exactly where the igniter tip is oriented so you can put the new one in the same spacing to have it ignite properly. The status light should be green when the furnace is 'On.'

May 09, 2015 | Goodman Heating & Cooling

1 Answer

Goodman gmh95

Sounds like the door is open, or there's no power to it. Make sure the furnace door is closed (door switch) and the breaker, disconnect are all on.

Dec 16, 2013 | Heating & Cooling

2 Answers

I turn my thermostat to the HEAT position, I hear the Thermostat click and the Furnace begins to hum but no air comes out of the vents. Also if i turn the fan to the ON position air will come out of the...

need to go to furnace and watch it...if your hearing a hum the enducer draft motor may have should start first if there is no fault codes...reset unit by unplugging furnace or in some cases turning power switch off...turn thermostat on heat and watch unit ..the small enducer draft motor should start first the a ignitor glows and the should light...goodman units have a control board with a light on control board when it fails should flash a code and on the door or inside on lable should give you what that code is...hope this helps good luck

Jan 07, 2011 | Goodman GMS90703BXA Heater

1 Answer

New gmh95/gch9 system. getting a diag. code 3 flashes, [pressure switch area]. all flues clear, hoses clear,drain lines working. left side down application and i just installed kit #000143- flue drain ....

I like the unit.How new?Check the pitch/tilt of flues they cant sag or haue dip/low spots.How many 90degree elbows on exaust pipe?Approxmately how/long many feet is pipe?

Mar 27, 2010 | Goodman Heating & Cooling

1 Answer

I have a Goodman GMT070-3 furnace. When I turn it

if it is a fuel furnace the pump may have air in the system. here is a web site that will give you the information you will need to to help you fix the problem, there is a manual that will take you step by step to resove the problem, if you need more help understanding the troubleshooting of the system post to this e-mial you will get.

Mar 15, 2010 | Goodman GMS90703BXA Heater

1 Answer

Furnace will not shut off after the setting is reached. have changed thermostat. Temperature reading goes down on thermostat, furnace still runs. Model : Goodman furnace,gmh95/gch9

Check if your thermostat is set on 'o fan' setting.
If it is, trey to set it on 'Auto-fan' instead.
since it seem as if the heating does go off,only the fan may be running continuously.
this is possible if the thermostat is incorrectly set or installed.
good luck.

Jan 30, 2010 | Goodman GMS90703BXA Heater

1 Answer

Water accumulates on small blower located under the gas burners of my Goodman GMH95 0453BX warm air furnace

Check all drain lines going to either the condensate pump or house drain, there may be a blockage.

Dec 23, 2009 | Goodman Heating & Cooling

1 Answer


what is the trans former voltage needs to be 26- 28 v. and is the board fused max 3-5 amp fuse I know it is on of the two check all of your wiring. good luck Tom

Jul 11, 2009 | Heating & Cooling

Not finding what you are looking for?
Heating & Cooling Logo

Related Topics:

80 people viewed this question

Ask a Question

Usually answered in minutes!

Top Goodman Heating & Cooling Experts

Dan Webster
Dan Webster

Level 3 Expert

8220 Answers


Level 3 Expert

2514 Answers

Brandon Berry
Brandon Berry

Level 2 Expert

407 Answers

Are you a Goodman Heating and Cooling Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides