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My coleman heater will not light. the green light is blinking 4 times, this means limit cycling. i dont know what that means

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  • dddavis160 Feb 07, 2010

    it is a furnace model#dgato9obdd

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  • Master
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What is the model# of the unit is it a heater or a furnace?

Posted on Feb 07, 2010

  • Heath Moyer Feb 07, 2010

    The high limit would be the flash code poer the furnace off with the breaker or the switch and turn it back on and watch to see if the ignitor glows up and if the burners come on if the burners come on and the fan doesn't then the problem is with the fan or fan control. Try turning the fan on with the on switch instead of auto if the fan comes on with the switch then the problem is the fan control. The limit switch could also be bad check it with an ohm meter it should ohm out if it is good if it is bad there will be no ohm or beep with the ohm meter set to beep.

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My Xenon high efficiency furnace has a red blinking led light that blinks 4 times and my furnace will not light. What could be the problem?


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My Goodman GMP 125-4 furnace has 4 blinking lights and we currently are unable to get it to come on. What might be wrong?


if this is an error code and you mean that the light blinks 4 times then it is the limit circuit. This could mean either the high limit or a roll out switch is open. the limit switch is right in the center of the furnace above the burner and roll out switches are probably somewhere around the opening of the burner. Follow the wires from the limit to find a roll out switch cause they are in line with each other and the rool out switch could have a button to reset it. However if the roll out is not tripped then you could need to change the limit. Only way to know is to check for continuity.

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My Coleman DAGT gas furnace blower fan will come on at time when there has been no heat cycle or will stay on after heat cycle is done. I have replace the the themostat and put in new intregated control...


try looking at the afc the fan control might need cleaning at the back of it could be filled with dust, or blocked air filter afc works on temp rise to start fan running and temp fall to stop running check settings on the afc thhey should be in your manual or afc might need changing

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I have a Coleman Evcon Mdl DGAT070BDD I am getting a trouble code 4 Flashes, which means Limit is Cycling. I replace both the control board and the limit switch, and still have the same problem.


Your heater is listed under a safety/inspection recall notice, these units have been found to overheat in certain circumstances, which can lead to a failure of the heat exchanger and the furnace. Might be the cause of your problems: http://www.dgatprogram.com/ They should do a free inspection, Good luck

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Limit cycle error 4 blinks. if i shut the power off then back on it seems to run fine. it will cycle 4 or 5 times then shut down. ( even when not up to temp. the only way to get it going again is to turn...


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Tjere is a limit switch that will only allow the durnace to reach a certain temp by kicking on the fan. The thermostat being unable to read the temp affects its ability to keep the furnace from exceeding your settings. *Advise not to use until corrected. Both limit switch and thermostats are inexpensive and simple to change. If in doubt, call a heat and AC tech to repair.

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I have a coleman evcon dagto7obdd fan keeps running i changed the limit switches fan keeps running and 4 blinking lights means limit open


Check for continuity through all your switches. Check voltage where these switches hook up to your control ignition box.if you see voltage there the problem is either the wiring or one of your switches is open. If you read no voltage there check again from "C" to the same wires a readign then indicates a bad board. Then check "R" to there a reading here indicates a bad thermostat (which is probably not your trouble due to the code and your legend of the code 4)

Hope this is cleaR and helps Please grade am accordingly and good luck.

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Defective combustion air switch. The 3 blinks are an error code. You didn't say, but I'm guessing you have a Coleman Evcon. They had alot of defective Combustion air switches. Your specialists were not that.

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