This is the brush assembly from the electric motor which raises and lowers our downdraft ventilator in the kitchen. The narrow dingy yellow device on the right side of the image is a thermal overload interrupter which was tripping after a few seconds of motor use. Bypassing the device and rebuilding the motor revealed shorted windings and a replacement is now on order. It took several hours of work to disassemble the ventilator before I discovered the root cause of the problem. On the bright side, the replacement motor costs $150 compared to a new ventilator which runs $1400.