Jay, or whoever else knows AC motors.
I have a relatively high end vacuum cleaner that I am quite certain needs a circuit board after a bound up brush and resulting overheat. Troubleshooting online and what I see leads me to replace a small circuit board because the thermal switch overheated, but before I spend the money I want to make sure the thermal circuit did it's job and the motor is still good.
- Motor says its 120V AC on the side of the body
- Control board has two labeled wires, approx 14 gauge going to motor. Those wires unplug from the board, one is black, one is white
- The black one connects to "Motor L" and the white one connects to "Motor N", both wires look normal, no burning or melting
- Can I directly connect two wires (all burden of safety on me) into a 120V source? I'd like to verify the motor runs
- Also I checked continuity on the armature, no continuity from shaft to where the brushes ride, but there is continuity across both sections of the armature
If I can plug those two wires into a surge protector or extension cord and run the motor alone, then I know I won't run the risk of burning another board
FYI - I can see a portion of the board that feeds one leg of the motor circuit that got hot. It's not labelled thermal protection, but it has one feed in and a big heat sink with what looks to be the thermal protection, when I checked continuity in and out of that little ?diode? or whatever it is, it's open. So the evidence of heat and the open circuit on what makes sense as a thermal switch makes me feel good, as well as the wife finding a stuck brush that caused it, I just want to make sure I don't burn an 80 dollar circuit board because the motor shorted when it bound up
Thanks in advance
