Also for the all-metal "220V AC Cooling Fan" fault worry about it, and today I will introduce a few small coup, so that we stay away from all-metal cooling fan failure, and durable.
1, Full Metal "220V AC Cooling Fan" in the use of the environment should be kept clean, fan surface remains clean, the outlet should not have debris regularly to remove dust and other debris inside the fan and piping.
2, can only operate at "220V AC Cooling Fan" completely normal circumstances, while ensuring an adequate supply facility capacity, voltage stability, non-phase operation, the supply line must be a dedicated line, the line should not be long-term temporary supply.