Variety of blower motor wiring diagram. Look for a switch with four wires the manufacturers wiring diagram search online for the make and model of fan plus the words wiring diagram wire cutters wire strippers and wire nuts.

Old Buck Triple Wall 3 Speed Blower
3 speed blower motor wiring diagram. One more thing to keep in mind is that the actual operating speed for a motor like this is determined by the load. Rpm shaded pole blower9 amps at volts 5060hz. Remove the blue wire from the relay. This is the schematic from the manual of the fan which i salvage this motor from. Refer to the motor manufacturers data on the motor for wiring diagrams on standard frame ex e ex d etc. I have no knowledge about motors.
The process of repairing a three speed box fan with a broken switch can be easily accomplished with a new three speed switch obtainable from most hardware or home improvement stores. Yellow has a medium speed label and blue has a low speed label. Hope someone can enlighten me on the. The load will slow the motor down. The wiring diagram in the book did not match my wiring so i am thinking it is a wiring e how do i wire a v 13 hp two speed fan motor to a single. Here is a video on how to wire a single phase three speed alternating current blower motor for another purpose.
In the colored diagram. 33 l1 l2 l3 n suggested wiring arrangement selector switch hi speed contactor overload overload lo speed contactor these diagrams are current at the time of publication check the wiring diagram supplied with the motor. If the blower is using a multi speed motor the settings will be labeled as high medium and low. It reveals the elements of the circuit as streamlined shapes and also the power and signal connections between the devices. Using the wiring diagram for the unit that holds the blower motor it will be possible to identify the fan relay as well as the various speed terminals and terminal locations if the motor is multi speed. This three speed motor.
With the motor disconnected from the load the speed will be close to 1500 rpm regardless of the connection. Nothing should happen on power up. If all that is correct the diagram below would be the complete connection diagram. White wire has a high speed label. Make sure stat is in off position. 3 speed blower motor wiring help.
These blower motors are very common and worth holding onto. A wiring diagram is a streamlined standard pictorial depiction of an electrical circuit. Put stat in fan on mode and the blower should run on high. There are 4 wires connected to the motor coloured white yellow blue and black respectively. The closest answer ive found was here.