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Bypassing a Furnace Control Board with a 90-340 Relay to get Blower Running

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Apartment Maintenance Pro

Not DIY advice. This is just myself diagnosing a control board for a furnace that would not let the blower motor run. I bypassed the blower motor fan part of the faulty control board with a all purpose 90340 relay for a temporary fix to get the cooling going.

posted by DeambRaRWes5n