Question about Coleman Propane Forced Air Heater w/Electronic Ignition (50,000-80,000 BTU)

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I have a Coleman furnace model# 7970 856 in my mobile home....the furnace runs for a few minutes then kicks out....starts up a minute or two later....luke warm air coming out of vents

Posted by Anonymous on

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5 Related Answers

Therinnaiguy

Chandler Ede

  • 1420 Answers

SOURCE: Coleman forced air furnace blower

Rmove the two screws holding the blower in place and slide it out. With the power off, rotate the wheel and inspect for debris or an impingement. If everything turns easy, you have a bad motor or start capacitor. If you have rubbing, adjust the wheel. If the motor will not turn, replace it.

Posted on May 30, 2008

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muttandjeff

Allen Neal

  • 359 Answers

SOURCE: Rollout Limit Switch Keeps Tripping

have someone check the gas presure most likely too high no more than 11

Posted on Dec 17, 2008

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Therinnaiguy

Chandler Ede

  • 1420 Answers

SOURCE: i have a coleman in my modular home, dosent blow hot air, everyth

Check the air filter and clean. If you can, raise the blower speed up to the next speed. Make sure all of the supply and return grills are open. Is the ductwork connected under the home and well insulated? Does the furnace ever stop or keep on running? If it does stop, you may have a bad thermostat.

Posted on Jan 03, 2010

atocrxr

Paul

  • 144 Answers

SOURCE: 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

Posted on Mar 31, 2010

TheMobilian

Dan Webster

  • 8220 Answers

SOURCE: I have a coleman evcon

If the thermostat is ok which it probably is then your sequencer is most likely stuck i would say. You could verify that by removing 24 volts to the sequencer to see if it will shut down the heater
themobilian_598.jpg When low voltage from the thermostat is applied at the base of this sequencer it heats a bi-metal and turns on each coil and fan in a sequence that will insure the breaker don't throw from the power surge AND warm air comes out the vents when that fan comes on. I would start there.

If you need further help, reach me via phone at https://www.6ya.com/expert/dan_73bbd84fe1d95b61

Posted on Dec 28, 2010

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We have a Coleman Electric Furnace Serial # AOL6042086, Model # AHP36C3XH21A and the fan runs constantly, will not shut off. We have replaced the thermostat and just replaced the control board. We h


I wish I was a furnace expert but I will give a push in the right direction. When a gas/electric fan runs it has two speeds. When you turn on the FAN ON switch it should run at the slower speed. If it doesn't turn on or turn off again when you turn it back you have a wiring problem or a thermostat problem. Make sure the thermostat is compatible with your unit and wired properly (on both ends). The other time the fan runs is "in session" when heat or cooling is applied to the system. It should run until the system finishes the cycle then a bit more (30 seconds or 1 minute) to blow the treated air completely through the ducts. If it doesn't stop then you may have a bad fan time delay or relay. Check parts for your model and various appliance repair site online.

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Furnace kicks on then shuts off


Coleman furnaces us a temperature delay with a temperature on around 130F to 150F and off around 110F.

If the inrush of cold air cools the delay below the off temperature the fan will go off until the heater heats it up to the on temperature.

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Coleman Presidential Furnace 6806A842 heat switch pops then cool air


Make sure all vents are open and filters are clean. Likely an air flow issue but possibly, though unlikely, both switches are bad.

If you need further help, reach me via phone at https://www.6ya.com/expert/thomas_092728000e6acb79

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Why does my Colman EB10C electric heater start & run for a few seconds,stop, then restart & run?


check your high limit switch find blower motor and unplug white wire let furnace run it should shut off when hot enough if same problem replace high limit switch

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1 Answer

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Is this a blend air system? If so, there is an upper & lower control board that communicate to each other, and if the exhaust fan on the roof is out, it will give you intermittent issues. The fan mixes or blends outside air with the return of the air handler, & duals to pressurize the attic. These were installed due to mobile homes built too air tight. Without this fan, your roofing shingles will curl, and your roof decking will bow prematurely.

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1 Answer

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You did not indicate the year or size of the mobile home, but, having lived in several in cold Michigan, here are some things.
Be sure all the windows are well sealed.
At first, I used to put a strong clear plastic sheet over the insides, and tape these in place.
Later, I bought foam insulation board at a lumber yard and cut pieces to fin the window openings, and taped them in.
When it is really cold, feel the walls, the floor, and the ceiling.
If you find cold to the touch, you are losing heat there.
If your floors are cold, put insulating panels and skirting around the bottom of the trailer.
If your extreme cold lasts for months, some people consider putting a small electric heater under the trailer that is temperature controlled.
Some people do a "roof-over" by setting poles or posts alongside the trailer and adding an additional roof above the trailer.
That step would enable you to add insulation above the top if your ceiling is cold.
God bless your efforts.

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1 Answer

Colman Furnace keeps kicking on & off


Denise, my heater not a coleman (a monitor heater (oil) kept turning off when the temp got really cold. I would advise you to ask if you can do this, I addded an additive to my drum outside which holds the fuel. Because the deisel thickens up when it gets cold, which makes the heater have a harder time distributing the fuel to the heater. So far the heater has not kicked off.

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1 Answer

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you probably have a bad thermostat if it wont shut down id replace the thermostat first and then have the thermocoupler checked...replace the thermostat

Aug 20, 2008 | Heating & Cooling

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