Ducane Furnace Problem

01-09-2011, 06:41 PM	#1
ldr Newbie   Join Date: Jan 2011 Posts: 3	Ducane Furnace Problem Installed a new Ducane 95% condensing gas furnace. The unit will run and cycle for five minutes before shutting down. The units board flashes 3times which indicates a bad pressure switch. I changed the pressure switch and still have the same problem. The gas company says there is good pressure in the line.

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01-09-2011, 06:59 PM	#2
Marty S. Member   Join Date: Oct 2009 Location: Nebraska Posts: 2,298	Ducane Furnace Problem Sounds like a venting issue.

01-09-2011, 07:24 PM	#3
ldr Newbie   Join Date: Jan 2011 Posts: 3	Ducane Furnace Problem Vented with 3 inch pvc to the outside through a sidewall about 11 feet total run with 4 elbows. Same for the intake.

01-09-2011, 07:40 PM	#4
hvactech126 Professional   Join Date: Nov 2010 Location: NE Indiana Posts: 2,003 Blog Entries: 1	Ducane Furnace Problem is there slope (1/4" per foot) all the way back to the furnace? ensure there is no debris in pressure port on draft motor __________________ IT IS WHAT IT IS To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

01-09-2011, 10:50 PM	#5
Home Air Direct Member     Join Date: Jan 2009 Location: Southern Illinois Posts: 297	Ducane Furnace Problem Is it one of the new 33" furnaces? I have had contractors that did not follow the instructions for the new external condensate drain and they have had lockouts. The instructions are very specific on these. Good luck. __________________ Settle down! If you were that important, the city would give you lights and a siren for your car

01-10-2011, 09:17 AM	#6
ldr Newbie   Join Date: Jan 2011 Posts: 3	Ducane Furnace Problem Quote: Originally Posted by Home Air Direct Is it one of the new 33" furnaces? I have had contractors that did not follow the instructions for the new external condensate drain and they have had lockouts. The instructions are very specific on these. Good luck. are you referring to the condensate trap drain or something in addition to this?