2 Speed Blower Motor Wiring

Since a two speed motor relies on different coils to produce different speeds there are usually two input wires.

2 speed blower motor wiring.

I have a nice bezel with a 3 speed fan switch. Multi fit applications blower motor volts. 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. 2 wire internal ground or 3 wire external ground motor diameter.

How to wire up a 2 speed ford taurus electric fan the relays i used is the zettler az979 1a 12de for low speed and az979 1c 12d for hi speed. Strip 2 inches of plastic off the opposite end of a prewired plug using wire strippers the wire needs to be nonmetallic awg 14. If the blower is using a multi speed motor the settings will be labeled as high medium and low. I was going to replace the blower motor anyway so i d like to convert to a 3 speed motor.

4 25 oa body wire type. Diagram dd4 low speed low speed u1 u1 v1 v1 w1 w1 u2 u2 v2 v2 w2 w2 l1 l1 l2 l2 l3 l3 e e high. I have an early 65 mustang with a 2 speed fan and a really crappy looking heater control bezel. In many instances the low and high speed coils share an external wire.

Two speed motors with 2 separate windings dual winding high speed red leads red leads black leads black leads m 3 single speed only 3ø wiring diagrams u1 red v1 yellow w1 blue thermal contacts tb white l1 l2 l3 n e codes. Additionally the low speed coil is typically supplied by a red wire while the high speed coil is fed by a black wire. Than use a 30 a. This video shows how easy it is to change a dayton 115v 2 speed motor from high to low speed.

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