Substitution: 5D51-78 Learn why
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Important details
SUBSTITUTION
This is a manufacturer substitution. Part may differ in appearance but is a functional equivalent to prior parts including 614251.
At this time, we are unable to obtain this part. We are sorry for any inconvenience.
Part information
This fan control and limit switch (part number 5D51-78) is for furnaces.
Fan control and limit switch 5D51-78 controls the operation of the blower fan in the furnace.
Shut off the house circuit breaker for the furnace before installing this part.