Question about Heating & Cooling
I have a coleman 2 in one self igniting furnace. It runs the ac and the heat. It will push the ac just fine through the vents but it wont push the heat. THe flame is just as big, the furnace itself pushes out heat, but its not getting through the vents at all in the trailor.
I take you mean there is a fan coming on that blows AC air thru the vents and is the same fan used to blow the heat ? If that is the case is the fan coming on when the heat comes on ? If not then that is why you are not getting the heat.
That can be from a temp sensor not working or a control board or a contactor
First see if the fan even comes on or if the same fan is used for both AC and heat
Posted on Oct 20, 2013
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Posted on Jan 02, 2017
SOURCE: Flame Adjustment
Make sure the unit is operating on the correct gas, Natural or Propane (LP). The sound you are experiencing is either not enough gas and the flame is burning inside the burner port(s) or too much gas and the flame is much larger than it has to be. At any rate, get a technician to check the gas pressure entering into the home. NOW!
Posted on Sep 18, 2007
SOURCE: coleman furnace wont fire
Check inside the door panel next to the wiring schematic, you should find the diagnostic codes. Look up 7 blinks. This should narrow down the problem. ( It sounds like a bad hot surface ignitor).
Posted on Apr 10, 2009
The flame sensor is not working properly, it is not allowing the ignitor to ignite, and this is making the system shut down, the flame sensor has obtain a build up of carbon, you will need to remove the flame sensor, and take a little piece of sand paper to remove the black carbon from the flame sensor stem, clean until the stem is shinning, replace the flame sensor and turn the furnance back on this will correct the problem.
Posted on Dec 14, 2009
My furnace did not have a reset switch on that particular limiter. I unpugged the switch, it had 2 wires, waited 15 seconds or so and then plugged it back in . Turned the furnace back on and the limiter reset itself.
Posted on Dec 24, 2009
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