I have a 4 ton 13 seer single package intertherm heat pump. The original GE blower motor failed the other day. I replaced it with a Emerson motor.
The old motor wire colors : Blk, White, Grn, Blu, Red, & Orange
The new motor wires: Blk, White, Grn, Blu, Red, Yellow, & 2 Brown
The two motors are slightly different. I connected the wires color, for color, except I connected the Yellow of the new motor to the Orange wire of the old. Last I bought a new run capacitor, and connected it between the 2 brown wires.
After switching main breaker on, the motor runs all the time. The rest of the unit works fine. The exhaust fan cuts off & on with the temp. setpoint, but the blower fan runs all the time.
I know you may not know exactly the wire codes for the emerson motor. I'm hoping if you would know which wire is for Fast, Med, & Slow speed & which is the common for the old motor.
The diagram that came with the Emerson motor only says: Blk = High Speed, Yellow = Med High Speed, Blue = Med Low Speed, Red = Low Speed, White = Common, Both brown wires show a 10.0 MFD 370V cap. in between.
The diagram for my old motor shows: Blk goes to 24v leg of transformer, then over to T1 on board. Orange goes to blower relay. Blue goes to L2 of compressor contactor. Red goes to W2 on defrost board. White goes to L1 of compressor contactor.
I just can't relate the new motor colors with the old connections.
Sorry so long. Any help would be greatly appreciated.
Oh I forgot, the grn wire on both motors is for ground (LOL