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08-19-2012, 04:02 AM
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#1
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Established Member
Join Date: Aug 2009
Location: Belen
Posts: 29
M.O.C. #9612
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Crazy fix for furnace that wouldn't light
I sure don't know if this fix will last but thought it worth sharing. With cold weather not too far away and a furnace that refused to light during last year's annual elk hunting trip to the mountains, I thought I'd best figure out what's going on because this year's trip is just two weeks away. I tried everything I knew but nothing worked. The blower kicked on just like it was supposed to and that's as far as it went. I checked gas pressure, voltage, obstructions, loose wires, etc. with no results. Figured it might be the sail switch, but in this model there is just no way that I want to even think about trying to get to it. About two in the morning...ahaaa!!!, I know what I'll try. Around daylight yesterday morning I fired up my trusty gas powered leaf blower, and stuck the tip right up against the fresh air intake for the furnace and gave it a good hard blast. After kicking up the thermostat, the blower kicked on and I immediately heard a light metallic clank. After a few more seconds I heard the familiar sound of the igniter clicking away and the furnace firing up. I've cycled it repeatedly and so far it's worked every time. Keeping my fingers crossed.
Walt
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08-19-2012, 04:23 AM
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#2
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Montana Master
Join Date: May 2010
Location: Tampa
Posts: 532
M.O.C. #10378
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Now that's ingenious. Where there's a will, there's away.
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08-19-2012, 05:12 AM
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#3
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Established Member
Join Date: Aug 2009
Location: Belen
Posts: 29
M.O.C. #9612
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Hi Dave, I see you've got the same model as I do. Good luck if you ever have to get at your furnace. That puppy is buried deep.
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08-19-2012, 06:16 AM
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#4
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Montana Fan
Join Date: Apr 2011
Location: sussex
Posts: 118
M.O.C. #11349
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No where theres a Will theres a relative.LOL
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08-19-2012, 06:28 AM
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#5
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Montana Master
Join Date: May 2010
Location: Tampa
Posts: 532
M.O.C. #10378
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Walt, about a few months after buying it, the furnace would not ignite. The dealer had to remove it. Glad it was not me. But if necessary in the future, I stand ready, chainsaw in hand to do the job.
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08-19-2012, 07:06 AM
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#6
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Montana Master
Join Date: Jul 2006
Location: K.C.
Posts: 11,731
M.O.C. #5980
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90% of the time, it is a dirty flame sensor, I clean them with a scotch-bright (Green abrasive) or some emery paper. When you blew it out, it probably cleaned off some of the accumulated dirt. The flame is a conductor, when the flame envelops the sensor, that proves a ground for the circuit board and it continues to run, no flame, no fround...dirty sensor..no ground, then no workee...
All are about the same, some bent different...
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08-19-2012, 12:21 PM
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#7
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Established Member
Join Date: Aug 2009
Location: Belen
Posts: 29
M.O.C. #9612
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Thanks for the info Ozz. Sure lots of great information around here. Think I'm going to throw some emory cloth into my on board tool kit.
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08-19-2012, 12:35 PM
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#8
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Montana Master
Join Date: Jul 2006
Location: K.C.
Posts: 11,731
M.O.C. #5980
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You bet Walt, here is a video on the subject:
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