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

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What to do, Furnace do not stop heating when thermostat get off? Furnace start work at preset temperature. When heating cycle is completed, thermostat get off, but furnace is running. When I hit outside in the furnace - it will click and after cooling period - furnace will stop. I think the relay or sequencer is wrong. Do i suppose to replace them both?

Posted by Janusz Kantor on

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Thomas Woodburn

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  • Coleman Master
  • 2,410 Answers

Yes, sounds like a stuck relay. RAY YOU ARE A GENIUS!!!

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

Posted on Oct 05, 2017

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5 Related Answers

Anonymous

  • 625 Answers

SOURCE: colman furnace

look on your burner control relay - look for terminals marked T and TH.  connect up a honeywell thermostat here.

Posted on Oct 15, 2007

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chumpdiggity

  • 8 Answers

SOURCE: wiring from thermostat to furnace

Typically you normally will have five wires controlling your furnace and airconditioning. R Y W G C. If you get some thermostat wire. Connect them like this---- red wire will go to R(this is your 24V to thermostat)----yellow wire will go Y(Y is your cooling)----white wire will go W(W is for heating)---green wire to G(green is your fan)---black can go to C(this is your common to supply 24Vto thermostat)

Posted on Jan 19, 2009

Scott Magill

  • 70 Answers

SOURCE: short cycling..continually..minimal heat

Is this furnace standing pilot or electronic? if standing pilot turn power off then take t-stat off wall and connect the wires labeled r and c together and see if that keeps furnace working. If electronic check flame sensor you can check flame sensor buy cleaning with steel wool. if that doesn't work then try t-sat.

Posted on Jan 22, 2009

Anonymous

  • 11 Answers

SOURCE: Furnace not cycling properly.

you might want to check the filter, if the filter is restricting the airflow the furnace will over heat and it will shut down. if you turn it off and on it will reset it and it will try again. Pull the filter out half way and try that, if it runs fine then clean the filter or get a less restrictive one.

Posted on Feb 11, 2009

Earnest Bowes

  • 234 Answers

SOURCE: furnace dont respond to t-stat's command.

Maybe you don't have power going to the unit for the thermostat work.Most thermostat work off low voltages like 24 volts. May the transformer is bad.

Posted on Mar 17, 2009

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1 Answer

Why does my Coleman furnace model# DGAA090BDTA stop and start to get up to temp?


That's how it should work .Your furnace will cycle on and off to reach set point .
You don't have to troubleshoot the thermostat. The reason why your furnace cycle is once the heat exchanger get to a certain temperature the board will shut it off, fan would still work to cool heat exchanger down then once cool down furnace will fire up again .

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Hi i have a wireless room thermostat i wish to fit to my potterton boiler can anyone advise me thanks


in general-
wireless thermo has 2 units - room thermo and furnace rcvr.
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1 Answer

Furnace start stop cycle


On properly sized furnaces there are a few controls to look at. Check the settings of the fan switch. If these are unchanged then there may be a reason the furnace is shutting off due to poor air flow and resulting high temperature. Check filter and verify air flow is good. It may be possible that a safety switch is failing and intermittently on and off. Are all the covers securely in place and hitting any safety switches? If not seated properly the cover may loosen when the fan runs and the switch shut off the unit. There is often a flame roll out switch that could have been strained. Lastly, has the thermostat been working long? Thermostats have internal heaters to stop the furnace which is called a heating anticipator. If the thermostat is near a heat source (heat duct, refrigerator, oven, person, hot water pipe), worn out, anticipator is set wrong (older electric thermostats have adjustable settings) or covered (yes, I have seen some covered) then the free room air cannot measure correctly and the thermostat cannot control what it cannot accurately measure. Of all these possibilities I would start with the thermostat and proper furnace air flow, second check the fan/high limit switch and third go component by component through the wiring diagram looking for defects in each component. If available follow the manufacturer's troubleshooting guide.

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1 Answer

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1 Answer

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Well with a boiler system like you have it will cost you more money to heat your house that way than if you leave it like it is. With a boiler system it takes a lot longer to heat an area than with a furnace. The best thing you can do is find a happy medium and leave it there at all times. If you read the paper work on your new thermostats they have a set procedure which tells the thermostat if you have forced air or boiler system. Do you have baseboard or in-floor heat how many zones do you have.

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1 Answer

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Sounds like you have a problem upon start up of heat. Your safteys maybe shutting you down, and restting voltage to your curcuit board allows you to have another heating cycle. Honestly you may due justice calling a tech.

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