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I have a Gibson model KG6RC furnace, it is 3 years old. It was working fine this morning, then it cycled to kick on and never did. It acts like it is going to start, but it don't. I have checked the blower, it's fine, the ignitor is also fine. I switched it off at the main breaker and turned it back on- now what?

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Look for limit switches, you can find one or two manual push button switches near the exchangers. If that doesn't work, find the primary limit switch it is on the wall of the exchangers and does not have a manual botton to reset, get a paper clip and bypass those two wires, turn power back on then see if it works... Try the same thing with the manual limits, they have one wire coming in one going out, if continuity is broken furnace will not start. You must not leave the paper clip in, take the bad limit and replace it..

Posted on Dec 04, 2008

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Gibson Furnace KG6RC-060C-12A Model


Somewhere on the unit there is a small chart that identifies the problem that the lights are indicating. That helps narrow down a long list of possibilities. However, if you catch it acting up you can check that limit switch like this:
with your voltmeter set to voltage test from one side of the switch to the other. If the limit is "open" due to an overheat problem your meter will read 240 or 24 volts depending. If the limit is closed/working it will read 0 volts. The unit must be running for this test. The problem is there is a small window of opportunity before it cools off and closes. Whatever you do, DO MOT BYPASS THE LIMIT!

Feb 13, 2014 | Gibson Gas Furnace 60000 Btu 90% Afue...

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When furnace cycles on theirs a slight oil smell until the blower kicks on I had the furnaced cleaned and nozzle replaced still the smell comes out of the heat register whats my next move tear unit apart...


You didn't mention how old your oil furnace is. But, if it's got some age on it and it's hasn't been serviced annually, the heat exchanger may very well be cracked. But, before you decide to tear it apart and make it a DIY project, you may well want to half a qualified service technician take a look at it. Because, replacing the heat chamber, even if you do it yourself, may be more expensive in the long run, than replacing the furnace with a more efficient, up to date model.

Don't forget, most oil furnaces can be converted to gas (either Natural Gas or Propane) which burns cleaner & hotter than oil. And cost less to operate. I did it in one of my previous homes and was glad I did. My annual heating cost decreased almost 30%. That savings paid for the conversion in 3 years.

Hope this helps.

Feb 16, 2011 | Air Conditioners

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...


Hi,
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

heatman101

Feb 03, 2011 | Gibson Air Conditioners

1 Answer

Hello, I have a Amana Air Command 80 model #GHI90A50, 22 years old. This furnace is on its third ingnition module (last one two yeras ago). The symptom I am trying to diagnose has been ongioing since this...


If your furnace lights and the gas stays on for 8 to 10 seconds, then shuts right back off, then you need to clean your flame sensor with light sand paper or steel wool. You might need a new flame sensor, but most of the time they can be cleaned an will work well after cleaning.

Dec 05, 2010 | Air Conditioners

1 Answer

Currently there is no heat coming from my furnace. Checked my thermastat and it seems to be working fine. Looked at my furnace records,and it indaicated that in 2003 the note said, no heat, BRD, ( not sure...


Will need to know model and seriel of furnace - sounds like a dirty or defective flame sensor. Flame sensor can usually be cleaned by simply wiping it with a slightly abrasive paper, or 0000 steel wool. Most electronic ignition types have a diagnostic code generally located on the ignition control, and depending on the number of "blinks" from the diagnostic light it will tell you why the unit did not fire.

Nov 20, 2010 | Air Conditioners

3 Answers

WeatherKing Acclaim II


  1. The sensor that tells the furnace whether the gas is lit has got build-up on it and is giving the furnace bad information.
  2. The flame sensor is often a single wire or rod that sticks up in the center of the flame.
  3. You can shut off the furnace and the gas and clean the sensor with some sandpaper.
If that still doesn't work, the sensor may need to be replaced.

Please rate this solution.

Jan 16, 2009 | Air Conditioners

1 Answer

Rheem gas furnace pilot lights, but no burners or fan


If the burners do not fully ignite, the sensor will shut the furnace down. The lack of sufficient burner flame is a gas valve or gas pressure problem within the valve.
Replacing the gas valve with the original one may get you going. I surely suggest a professional service company for safety reasons and a thorough inspection. A 20 year old furnace is past it's normal life span.

Jan 06, 2009 | Air Conditioners

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