Oh the trouble that happens when money is tight.
I have a Trane gas pack and the indoor blower motor stopped working. I had a prepaid service call in my pocket from my local HVAC guy. He came out and determined that the indoor blower motor was fried. I saw the capacitor reading ok, so I had confidence that he was telling me the truth.
It was to cost $410 to replace the blower motor. About the going rate, but I simply didn't have it.
I knew where the local Trane parts dealer was, so I got the proper numbers and came home with the right motor.
I got the old motor out, got the new motor in, but here is where the plot thickens.
The old motor had 5 wires. These included
#1 A ground wire
#2 A purple wire going to the capacitor
#3 A brown wire going to the other terminal of the capacitor
#4 A red wire going to a 4 post terminal of some sort where 3 other wires are attached.
#5 A black wire which was taped off & not attached.
As best I can tell the red & black wires were for fan speed choices. The schematic showed that either the red or the black could be attached to the terminal.
The new motor has 8 wires. These include
#1 A ground wire
#2 & #3 - two same color wires which are to go to the capacitor
#4 thu #7 - Red, black, yellow, blue wires which are various speed wires
#8 A White Common wire
I was guessing to attach the black wire (High speed) to the post where the former red wire was attached.
I have no idea where to attach the White common wire. The old motor didn't have one.
I can't get the thing to work and I know my HVAC guy will STILL want $400, even though I've already bought the new $100 motor.
In fooling around with the wiring, the unit clicked once, and now there doesn't seem to be any power available at all. I can't find a tripped circuit breaker & I didn't know whether or not there was some internal fuse that I've blown & what it would look like. And again, I don't know where to connect the White common wire.
Any help would be greatly, greatly appreciated.
Thanks so much, in advance.
Trane - YCC024A1LOBA