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Gibson Model: KG7TC100D35C furnace installation manuals

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Posted on Jan 02, 2017

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SOURCE: My Gibson Furnace clicks on but no heat comes out.

After four years I do not thing you have an effective warranty even if the company still in business. you need to open it first and clean it from any builod up dust and check the switch to see if it is working (thermostate)

Posted on Nov 08, 2009

  • 1420 Answers

SOURCE: Gibson Furnace, Model #7106250 can not get a flame

On a call for heat, the 24 volt thermostat sends a signal to the control module. The control module will indicate a call for heat with a light on the control either blinking or remain solid depending upon model. The inducer (exhaust) blower will purge all gasses from the furnace and pressurize a pressure switch. Once the pressure switch tells the module to continue, the electronic ignition will energize and send 120 volts to the igniter. The igniter will glow and you will be able to see it if viewed thru the small inspection port. Once the igniter gets hot enough, it sends a signal to the module opening up the gas valve (24 volts). Either a pilot will come on or the burner tube will ignite then spread the flame to all burners. Lastly a safety sensor will be looking for a certain temperature within a few seconds and the furnace will continue to operate and the room air blower will turn on in a minute or two.

What could go wrong? The unit will not run if there is no signal from the thermostat (bad thermostat or broken wire), the control module does not sense a signal from the thermostat (bad control), the inducer does not energize (bad motor), the pressure switch does not close (blocked vent piping, bad switch, plugged condensate hose, Dirty Air Filter), the igniter does not energize (bad control, bad igniter), the gas valve does not open or there is no gas (bad gas valve, broken wire, no gas), the pilot does not light (dirty pilot), the burner does not light (bad burner, plugged orifice, not enough combustion air), the flame does not spread to each burner (bad flame spreader, dirty flame spreader, more bad burners), the flame safety sensor does not detect flame (dirty or bad flame spreader, bad flame sensor, broken wire, bad control), or the room air blower does not energize (bad fan motor, bad control).

Posted on Mar 04, 2010

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Have Gibson furnace runs cycle but seems don't get hot enough out of vents check all 115 degrees at vents use to lot hotter old furnace you couldn't stand on vents now you can easily

Is this a gas furnace ? Newer high eff. gas furnaces do have cooler outlet temperatures. The installer should have checked the temperature rise and gas pressure. By adjusting the gas pressure and blower speed you can obtain a higher outlet temp, but you don't want the gas pressure to be higher than the manufacture specs and you don't want the furnace to run outside of the manufactures temp rise specs.

Mar 02, 2017 | Gibson Heating & Cooling

1 Answer

My 2005 Gibson furnace overheats in a really cold night, stops and has to be restarted manually. A 1-square foot hole was cut out to feed more air but the problem persists. What is wrong?

There are over temp and roll out sensors on the unit. They may be weak, or you may have a problem with flame adjustment, etc. Where did you cut that hole? The air flow has to be balanced in the room where the furnace is, if you have the furnace drawing in air from the room and not through the cold air return you run the risk of CARBON MONOXIDE being drawn out of the flue into the air feed and this can poison anyone in the structure.

Jan 22, 2017 | Gibson Heating & Cooling

2 Answers

Amp fuse keeps blowing

The component being protected by the fuse is drawing excessive current - has to be a board or something because the motor always draws more than three amps. Check the units schematic for locating the possible offending board. Must be relatively new since you indicate it is multispeed. Still under warranty?

Feb 23, 2014 | Gibson KG7SA045C23A 45,000 BTU 80% Gas...

1 Answer

My gibson furnace is about 8yrs old and it was working fine heat was on yesterday morning but last night it stopped. Changed batteries in thermostat which in new(thermostat) but no heat. Checked the vents...

Look on the back of the bottom cover... it should tell you what the blinking means...

Here is a tip that will help you try to figure out why your furnace is not working.

Basic Furnace or Heating System Troubleshooting


Feb 03, 2011 | Gibson Heating & Cooling

1 Answer

I just had a 2 stage furnace put in and a 1 stage thermostat. The thermostat has been changed three times, but the furnace still won't come on as it's programmed to do. Where do you think the problem lies?

A single stage thermostat can be used on a two stage furnace, but there is a dip switch on the furnace computer board that will need to be changed, the directions are in the installers installation guide.
Also not knowing what type and brand of thermostat you have, leaves me guessing, some higher end thermostats have intelligent recovery, if you set it to 70 degrees, at 7 AM, it will try to have the temp to 70 by 7AM, so it could be coming on, even 2 to 3 hours early, depending on the temp. Most of them have a 7 day curve, so it takes awhile for them to adjust, this feature can be turned off, you will again need the installer's install manual.
I hope this has helped, please rate me and also get back to me if you have any more questions.
Paul Gibson

Apr 27, 2010 | Heating & Cooling

1 Answer

Looking for age of Furnace. Model number appears to be 3010 100n. The serial number appears to be cn3 d108 50972 7055.

Not knowing the Brand, I am taking a educated guess, but it looks like it was made in the 50th week of 1997, 100,000 BTU furnace.
Good luck,
Paul Gibson

Apr 06, 2010 | Heating & Cooling

1 Answer

Install automatic ignition system for a coleman furnace

For sure turn off the power at the breaker!! Now as far as the new board, usually the new board will be a new modified replacement, the wiring will be different from the original. It is very important to follow the installation instruction that come with the new board, if you go step by step, it will be ok. Just don't be surprised when you find that the new one is not exact. It is all in the name of improvement, follow the install manuals, step by step. As a 30 year Heating and cooling tech, it was very worrisome when they started doing this, but as long as you have a board that matches the brand and model of your furnace, it will be ok.
Good Luck,
Paul Gibson

Mar 31, 2010 | Coleman Heating & Cooling

1 Answer

My Gibson Furnace clicks on but no heat comes out.

After four years I do not thing you have an effective warranty even if the company still in business. you need to open it first and clean it from any builod up dust and check the switch to see if it is working (thermostate)

Nov 08, 2009 | Heating & Cooling

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