Using this Westinghouse bar fridge thermostat is straightforward. First, make sure your fridge is unplugged before installation. Locate the old thermostat and carefully remove it. Then, install the new thermostat by using the 3/8' screw mounting. Attach the capillary to the evaporator as it was on the old one. When it comes to the terminals, connect them properly according to the wiring diagram. For normal operation, keep your fridge in a well - ventilated area. Avoid placing hot items near the thermostat. As for maintenance, regularly clean the fridge and the thermostat area to prevent dust and debris from affecting its performance. If you notice any issues, such as inconsistent temperature control, don't hesitate to contact a professional.