York Furnace not igniting in Auto Mode M3UF032SA

Gizmojenkins Posts: 1, Reputation: 1

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Feb 1, 2014, 08:31 PM

York Furnace not igniting in Auto Mode M3UF032SA

I have a York furnace model# M3UF032SA. The heat works and ignites while in Fan Mode only. It will cycle on and try to ignite but I can hear it fail when in Auto mode. I have to leave the Fan mode running for the heat to kick on and work. What would cause this?

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