american standard furnace error codes 5 flashes

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If you notice 5 red colored flashes on your York Furnace, it signifies that your furnace’s roll-out switch, or auxiliary switch, may be open. This switch can be reset by pushing the center of the red button on your furnace (it should be located on the side). 6 red colored flashes on your furnace means that the modulating gas valve has failed.

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