Using this fridge light/fan switch is easy. First, make sure your fridge is unplugged for safety. Locate the old switch and carefully remove it. Then, connect the new switch using the three 2.8mm spade connections. Plug your fridge back in and test the switch to ensure it's working. As for maintenance, keep the switch clean and dry. Check the connections regularly to make sure they're secure. If you have any doubts about the suitability of this part for your fridge, always reach out to us with your model number for confirmation. Don't use the switch if it shows any signs of damage.