Miller Furnace M1MB 090AAW - http://www.hvacmechanic.com/ Forums
Original message
| Wayne(Pa)
 |  "Miller Furnace M1MB 090AAW"
, posted Mon 6 Oct 04:29  
When I turn furnace on ignitor lights flame,blower works fine but shortly thereafter diagnostic code(yellow light flashes)denoting low flame.Flame goes out and ignitor relights flame but then furnace locks out(red light flashes four times).
Also noted through peep hole that when flame is on it seems that the blower is really blowing lots of air causing flame to sway alot.
Any suggestions would be truly appreciated(could it be as simple as my cheap wall mounted thermostat?)Hopefully not my gas valve,etc)
Wayne
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Replies:
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| jmar
| "Re(1):Miller Furnace M1MB 090AAW" , posted Wed 8 Oct 00:02
yellow denotes blower control senses flame or flame rectification. clean your flame sensor with fine steel wool wipe with shirt. But if your having issues with flame patterns youd better get a contractor out there to make sure nothing else is going on. Honestly Im not there to see the flame pattern so Im not going to shoot any ideas out there. So call a contractor give us hvac techs some work we need it.
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| | Wayne(pa)
| "Re(2):Miller Furnace M1MB 090AAW" , posted Thu 9 Oct 03:09
JMAR---Thanks much for your time & assistance.Truly appreciated.Have a pleasant day.
Wayne
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