House in Boo

10-05-2011, 02:58 PM	#1
bogie Newbie   Join Date: Oct 2011 Posts: 4	House in Boo I have a coleman furnace model # DGAT090. The diagnostic lite is flashing 5 times / gas valve engergized with no call for heat. Any answer for a fix to this concern?

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10-05-2011, 03:43 PM	#2
Doc Holliday I'm Your Huckleberry   Join Date: Mar 2011 Posts: 5,073	House in Boo Quote: Originally Posted by bogie I have a coleman furnace model # DGAT090. The diagnostic lite is flashing 5 times / gas valve engergized with no call for heat. Any answer for a fix to this concern? New control board.

10-05-2011, 08:19 PM	#3
Marty S. Member   Join Date: Oct 2009 Location: Nebraska Posts: 2,297	House in Boo Grounded flame sensor or its wire will do that too.

10-06-2011, 03:25 PM	#4
bogie Newbie   Join Date: Oct 2011 Posts: 4	House in Boo Quote: Originally Posted by Marty S. Grounded flame sensor or its wire will do that too. Where might I look for the flame sensor / wiring?

10-06-2011, 03:28 PM	#5
bogie Newbie   Join Date: Oct 2011 Posts: 4	House in Boo Quote: Originally Posted by Doc Holliday New control board. Is there a way to verify if its the control board. Quite a pricey part to try to see if it fixes the problem.

10-06-2011, 06:31 PM	#6
Marty S. Member   Join Date: Oct 2009 Location: Nebraska Posts: 2,297	House in Boo Should be 3 wires going into the burner. Disconnect the wires and check for continuity to the burner. If there is then you get to the fun part of removing the burner from the heat exchanger without breaking the fragile as an egg ignitor.