Question about Heaters

1 Answer

New 95% goodman keeps giving Code 1

I have a Goodman heater that will not do a full cycle without shutting down? it runs for a few mins and then shuts down and gives code 1. If i shut it down by shutting all power off to the heater, it will refire for a few mins and shut down again.

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Master
  • 1,420 Answers
Re: new 95% goodman keeps giving Code 1

Not having a model number to help you with, I can only give you generic info. Typically a flashing 1 represents that the furnace has exceeded its allowed attempts to start. Not much help. If I can suggest removing the access panel on the furnace and tape down the door safety switch. That being done, have a helper turn up the thermostat and you get your head inside the furnace cabinet and document what it does. It should first blink on the LED indicating a call for heat. Next the inducer blower should start up (the small blower hooked to the exhaust pipe). Next you may see an orange glow where the burner is. There should be a small clear port where you can watch this. Next some clicking should be heard from the gas valve. Then the orange glow should turn to a blue flame. This flame should travel all the way right and left igniting all the burners. Then it should stay on until the call for heat is satisfied.

After doing this and with your model number, get back to us and we may be able to pin-point your issue.

Posted on Dec 24, 2007

Add Your Answer

0 characters

Uploading: 0%


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


3 Points

Related Questions:

1 Answer

Electric furnace/air handler short cycles

check that the replaced thermostat is the same temp degree setting of the last one

Dec 16, 2013 | Goodman Heaters

1 Answer

Goodman GKS9. I have this unit in a condo that I only use sparingly in the winter. I keep the dual thermostats both at 57 and it maintains that tempeature. The problem is that when the thermostat is raised...

The presure switch is breaking down try taking the tubes off and blowing down the switch , or take a small drill bit and clean inside the connections to the pressure switch some times this becomes blocked .

Jan 16, 2012 | Goodman Heaters

1 Answer

After one heat cycle, the blower motor keeps running, even after cool down is complete. The furnace will not refire until i turn off the power and wait about 20 minutes for a reset.

your limit switch is opening up, that causes constant fan. Check for flashing codes after flame shuts off and fan continues. Check airflow, filters, lack on return air for possible hi temp limit problems.

Nov 17, 2011 | Goodman Heaters

2 Answers

Goodman model gmt090-3b ignator is staying lit all the time cause them to burn out .have changed board same problem.

Hi cannot find the problem for this but go to

you can e-mail and ask them from the web page hope this helps

it could be the presure switch playing up

Jan 23, 2010 | Goodman GMS90703BXA Heater

1 Answer

Goodman 075-3 fan runs but no voltage going to igniter

One thing you can checkmis the continuity through the ignitor itself if you have continutity through that there is also some safeties it has to go through but the board is where the voltage is supplied for the ignitor. I would check the high limit and the roll out before condeming the board.

Dec 20, 2009 | Goodman GDS80904BNA Open Flame Heater

3 Answers


I suspect that the flame is not traveling to all the burners within a given time so the flame sensor is shuting down the gas valve. Clean out the flame rail where the flame travels and carefully brush off the flame rod with an old tooth brush.

Oct 19, 2009 | Goodman GMS90703BXA Heater

1 Answer

I have a goodman will lit run for 2 min and then go off

sounds like you have a bad control board or limit control

Apr 23, 2009 | Goodman GMS90703BXA Heater

Not finding what you are looking for?
Heaters Logo

Related Topics:

280 people viewed this question

Ask a Question

Usually answered in minutes!

Top Heaters Experts


Level 3 Expert

1751 Answers

Dan Webster
Dan Webster

Level 3 Expert

8147 Answers


Level 3 Expert

1033 Answers

Are you a Heater Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides