Fault may exclude the methods do not work crew to re-connect power blackout phase sequence protection for electrical compressor asked moves Heat not working compressor relay inspection overload causes, manual reset, it started again. Security checks compressor action and the protection of the reasons for exclusion, start again. Refrigeration good effect evaporator or condenser, scaling, cleaning to improve airflow to deal with the excessive wind adjusted to deal with VAV Rated Fan Wai insufficient refrigerant leak check, add refrigerant near the inlet or exhaust outlet obstructions to remove obstacles opening of the expansion valve, inappropriate regulation opening of the expansion valve, liquid - pipe filters or dry cleaning pipe plug, Turnover dry filter regeneration temperature-temperature regeneration plug pipe inspection and clean renewable pipe, Regeneration fan stopped to check and reset relay heat up too high cooling temperature high temperature adjustment cooling capacity of renewable wind temperature is too low -- Hot rods to burn or instrument control functions malfunctioning air quantity is too small or renewable wind corresponding adjustment of the excessive air valve-valve system insulation bad inspection and repair of desiccant wheel sealed or bad check and repair damage from high winds and humidity desiccant wheel stopped to inspect and repair dehumidification Runner too dirty or ineffective use a vacuum cleaner or replace bad compression refrigeration condensing unit overhaul parts inspection and maintenance procedures 3 6 months 12 months unit assembly and Shell check on the availability of mechanical damage to the plane and no water. Cleaning crew requested internal and external. Check for the presence of mechanical damage. Cleaning crew requested internal and external. Treatment and regeneration blower fan check for the presence of mechanical damage, cleaning the motor and fan shell. Check the motor wiring terminals to ensure no loose wiring. Fans check whether the impeller injury. Inspection of VAV air valve as required adjustment. Wheel drive motor and reducer inspection runner-driven motor whether the location is suitable and drive sprocket wheel meshing with the availability. Check the electrical wiring and ensure that no loose wiring, check for the presence of injury and signs of overheating. Add oil. Control cabinet and wiring inspections of control cabinet components and wiring damage and whether signs of overheating. Ensure that no loose wiring. Inspection of control cabinet components and wiring damage and whether signs of overheating. Ensure that no loose wiring. Remove all components in the debris and dust. Renewable heater to remove stranded in the heater bilge debris and dust. Check all the pipes, electrical wiring and control any loose parts, if loose, it should be anchored. Heater remove stranded in the bilge of debris and dust. Desiccant wheel to detect any signs of wear and plug, use a vacuum to remove surface dust runner. Check for the presence of overheating and plug signs. Use a vacuum to remove surface dust runner. Seal check for the presence of damage and displacement signs. If wear or damage should be replaced. Check for the presence of damage and displacement signs. If wear or damage should be replaced. Duct check for the presence of air leakage and connecting the unit normal. Check for the presence of air leakage and connecting the unit normal. Check internal availability of dust and condensation compression injury washing machine table cooler and condenser surface of the dust and check cooling pipe. Cleaning table cooler and condenser surface of the dust and check cooling pipe, compressor performance checks.