Chongqing Dalin Environmental Protection Technology Co., Ltd. is engaged in the style repair industry for many years, is mainly responsible for the maintenance of the hood fan cleaning maintenance and repair, so far as Chongqing restaurants, hotels, canteens and other enterprises administrative units user units responsible for the maintenance of the product, at the same time for each user maintenance late usage, so keep track of consultation and in accordance with the requirements of guidance units at all times under normal maintenance to ensure good operation of the fan. The large hood fan at any time using the time grows, more and more smoke is adsorbed on the hood fan inside the hood of the machine speed will slow, resulting in deterioration of the hood fan smoke fumes, and even a little effect are not. So the fan should be regular cleaning and maintenance, the maintenance of good fan. The user units using the product, you must read the instructions, fragile and take effective maintenance measures required specification or replace. Example: Fan affected by the environment and human operation improper possible contamination by dust overload operation, lubrication quality is poor, ignored inspection and overhaul over time lead to fan failure or even scrapped at any time. Maintenance personnel in case of no professional training, do not arbitrarily remove the fan, or more trouble. Fume purification purifier maintenance repair common faults check: Electrostatic: 1, emit large amounts of smoke, the general reasons: (1) purifier movement and the filter is not cleaned in a timely manner, so that the internal grease deposition blockage. (2) insufficient to deal with the wind, so that long-term purifier in high concentrations of soot. (3) the whole movement insulator, electrode system damage. 2, the electric field pops sound, general reasons: (1) the electric field of a foreign body. (2) The electric field between the housing and too close. (3) electric field polarity reversal. The care and maintenance of fume purification: 1, exhaust fume purification oil on a regular basis. Regular fume purification cleaning, otherwise it will plug the electrostatic likely cause electric shock and lead to fire and other safety issues. 3, the device is idle, the need to clean the purifier in a dry and well-ventilated environment. Fan regular cleaning necessary place: 1 fumes are not clean, high-speed operation of the fan adhere to the impeller, Chiba turbine blade itself is a very small gap, once covered with greasy smoke effect will be greatly reduced. 2 occasional cleaning of the fan ventilation efforts getting smaller and smaller, a lot of smoke inside the ventilation ducts, hoods adhesion pipeline space along with the narrowing. 3 of the fan impeller with the fumes accumulation of the day and night, to increase the motor load increase, severe motor burned out. 4 exhaust pipes, especially the main exhaust pipe horizontal low smoke stocking. The 5 poor smoke, kitchen environmental pollution. The main exhaust hood cleaning necessity, the short distance between the stove and hoods, cooking fire breathe easily covered with grease inside the pipe, the consequences could be disastrous. Kitchen exhaust equipment often fail as follows: 1, fan ducts, hoods oil leakage. 2, the blower motor operation at work but a lot of noise. 3, the fan motor at work, but the wind is very small. 4, the fan is turned on, nothing happens. 5, the fan ducts, hoods with static electricity.