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Replacement Circuit Board for MaxxAir Roof Vent 4900K for Lid that Only Opens Manually

Question:

the fan will operate by the switch so i open the vent manually. I can close the vent with the switch at which time the fan comes and the vent closes . what do I need to fix it?

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Expert Reply:

It does sound like a circuit board issue on your MaxxAir roof vent 4900K which would require the part # MA10A21275K.

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Jameson C

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