Forum > Heating & Air Conditioning Repair

york 80 furnace mod. # p4hua12n06401a ser. # wemm01044

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repairguy42:
igniter comes on, gas ignites and goes out in 6 seconds.  red light on board comes on and goes out.   then that cycle reapeats. need help. thanks

jumptrout51:
Make sure all burners are lit for the short duration.
Pay special attention to the burner at the flame sensor.
Clean the flame sensor probe.
A dirty sensor probe can cause this issue.
It may not look dirty.
A few swipes with fine sandpaper should do it.

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