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

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Centrifugal switch failed to close

Coleman evcon #980653645

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

Therinnaiguy
  • 1420 Answers

SOURCE: Coleman furnace blower runs continuously

You should be seeing 120 volts to the igniter. Anything less requires either a replacement of the transformer, start relay or control module.

Posted on May 30, 2008

  • 70 Answers

SOURCE: i have a coleman/evcon electric

Have you tried to replace pressure switch for the combustion air. If your not sure where to find it if you pull the front panels off follow the flue pipe down to combustion chamber the combustion fan motor is either inside the flue pipe or out side of it not sure on the one you have but you should see two plastic tubes that connect to a barb onto the topside of the fan and one on the bottom they both should go back to the pressure switch. i hope this helps you if you have any more question or if this doesnt fix the problem just reply back to this message . Make sure fan is working when furnace starts up. It should be the first thing that comes on when there is a call for heat

Posted on Jan 21, 2009

farfield
  • 462 Answers

SOURCE: i have a coleman evcon dagto7obdd fan keeps

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.

Posted on Mar 11, 2009

  • 2461 Answers

SOURCE: coleman furnace(propane) will not start

change presure switch , no quick fix

Posted on Sep 17, 2010

  • 77 Answers

SOURCE: coleman combustion air switch failed

If the vacuum switch did not pull in first look to make sure there are no restrictions in the vent pipe if the vent pipe is real long try disconnecting it from the furnace then try to run the furnace again. If that's not it take the rubber hose loose from the combustion blower and **** on it see if the switch itself is bad. If the vent is cleaned out and the vacuum switch sucks in with little effort then your combustion blower in not pulling the proper CFM (cubic feet per minute) and needs to be replaced.

Posted on Nov 24, 2010

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1 Answer

How do you replace a pressure switch on a coleman evcon furnace


The pressure switch is mounted with 1/4" or 5/16" self tapping screws and has 2 wires and a rubber tube that attaches to the induced drafts assembly.
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Hello, I had the same problem and replaced the Centrifugal motor which still did not fix the problem. It turned out to be the squirrel cage that the Centrifugal motor turns. It was sticking on the rubber gasket between the motor and the squirrel cage/housing assembly. I loosened the set screw that holds the cage on the shaft and moved the cage up 1/8th of an inch and it solved the problem.

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I have had the same problem with mine for the last 2 years. Remove the motor on the side of the furnace(usually held on by 3 screws) and turn the fan blades inside by hand. after sitting all summer it seems to get stuck. If it moves freely, replace the motor and try to start it again. This fixed mine the last 2 years! Hope this helped.

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There should be one right above the burner tray. Look at the wiring diagram (pasted on one of the panels) and follow the wires Usually red orange or yellow) to the switch (may look like a rectangle plate with 2 prongs) and jump the switch with a jumper to test.

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I have 2 of these furnaces in mobile homes I own. On both of these the wheel inside the draft inducer blower that has the clear tube attached to it has a small wheel in it that over time tends to stick. Take the 4 screws out and give this little wheel located towards the bottom a push. Your problem may be solved without investing in expensive parts :)

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Furnace shuts off


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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Coleman furnace blower runs continuously


You should be seeing 120 volts to the igniter. Anything less requires either a replacement of the transformer, start relay or control module.

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