"220V AC Cooling Fan" fan just started using part of the first month run-in period, not a continuous 24-hour operation, the fan runs for 10 hours on the need to stop more than an hour. Fan overheat protection device, when the ultra-long-term use or high ambient temperature use, the motor will automatically trip, which is a normal phenomenon, and so long as the motor temperature can be lowered after normal use. In normal use do not frequently open and close the fan. When to stop using Note: A foreign bodies and clean up the dust on the grille and fan pages, in particular thread, cloth, plastic bags and so on. To avoid the impact the normal operation of the fan and cause damage. When not in use, do not open one hundred artificial rain devices prevent forget to close one hundred experiencing heavy rain and wet motor and bearings, likely to cause rust.