Question about Honeywell Furnace Gas Valve Sv9501h2409

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Electronic ignition furnace flame wont stay lit

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Mine did the same thing, I had the dusty blower limit sensor switch and the 2 outer burner limit (170 degree) sensors and the main area under the cover door panel cleaned/ vacuumed, and they reset the control board by resetting the fuse or breaker for the furnace.
I further, installed more expensive (dense) filters to try to trap more of the particles floating in the general area, from our dryer and vacuum sweeper.
It has thankfully been running fine since.

Posted on Nov 18, 2013

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Posted on Jan 02, 2017

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I assume that you are referring to a natural gas forced air furnace. If so you just described the symptoms of a dirty flame sensor. Remove the sensor with a 1/4" nutdriver. clean the flame sensor with a small piece of fine grit sandpaper or emery cloth. replace the sensor and turn the furnace back on.
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Hi Bmreid
The problem you describe sounds pretty much like your gas valve is going bad. There is a brand by Honeywell called a Smart Valve which is anything but smart, when the electronics in the valve start going bad the furnace will run great for a day or two and then the next day may not run at all and then an hour later my run and then an hour later may not run again. Very sporadic operating furnace is usually the Honeywell Smart gas valve going bad.

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