Using this fan motor and blade kit is a great way to keep your rangehood working well. First, make sure your rangehood is turned off and unplugged before you start the installation. If you're replacing an old motor, take note of how the wiring is connected. The new motor can work as a replacement for 2 - speed and single - speed motors. Just ignore the extra wires if you don't need them. When you're connecting the wires, double - check to ensure they're connected correctly. Incorrect wiring can cause damage and is not covered by warranty. Once installed, plug in your rangehood and test the different speed settings. For maintenance, clean the blade regularly to keep it spinning smoothly. Wipe down the motor to prevent dust buildup. If you have any issues, it's best to consult an electrician.