There are many car alarms due to the shop to check the water temperature to determine when "Waterproof Cooling Fan" does not turn, except as a result of electronic fan plugs virtual connection, but first want to check the electronic fan fuse. In many cases the result of "Waterproof Cooling Fan" aging leads to the resistance value is increased, caused by short-circuit electronic fan blown fuse. This time to heat the water tank electronic fan does not turn up, of course, the water temperature will rise up until the alarm. In fact, for our owners, to check whether the normal operation of electronic fan is also very simple method is to open the machine lid, open air observation car's electronic fan is functioning normally "Waterproof Cooling Fan" in front of the car, turn on the machine cover you can see, some cars are equipped with a small two electronic fans, some cars are equipped with an electronic fan only. If the fan is not running, then you first need to check whether the electronic fan fuse is blown, to carry out maintenance and replacement.