Furnace motor wiring diagram

Video demonstrating the standard wiring for the primary blower motor found in most furnaces and air handlers in residential HVAC. This is about 1volt Blower Motor Speeds and Wire Colors! PSC motors to 1volt and they run just fine.

This is how to determine which wires are for each spee high, med. Without knowing the make and model, or looking at the diagram.

One common standard is as follows: White = grounded (neutral) ( clockwise).

Blue = Medium speed (medium low).

Also, make sure your fan limit switch on your furnace is working (turn on thermostat to high and fan to auto and listen for furnace to start heating and watch the dial in your fan limit switch to start moving- blower should start at the first, lowest temp setting). Find the wiring diagram of the unit that holds the blower motor. The blower speed terminals use High, Medium and Low identification labels. CCW orange yellow orange yellow purple brown purple brown.

Direct Drive Furnace Blower Motor. The most common reasons for replacing the blower mo . I demonstrate how easy it is to use the wiring diagram to figure out where the wires go. Attention: Do not try any of what you see in this video at home. This section contains the motor wiring diagrams and optional two position and modulating damper wiring diagrams for models DHE.

So whatever the white wire connected to on your old motor is where the white wire on your new motor should connect to. Front Center of Ring to Center of Ring for . Suggested Lead Color at Horsepower Shown. Diameter -Permanent split capacitor (PCS) - Thru Bolt o. MasterFit Pro Motors include an all-purpose, multi-rating capacitor conven. Wiring Diagram Printed on Motor. A complete and simple wiring diagram is included to guide the contractor in selecting the correct rating.

This one is on the low voltage terminal board used to connect the furnace to the thermostat. Simply run the power wires from the motor back to the power coming into the furnace. This video is part of the heating and cooling series of.