"Waterproof Cooling Fan" investment opportunity mishandled or electrical malfunction, causing the induced draft fan wear. This is a coal-fired power plant failure induced draft fan most likely to happen. Oil spill stations, adjust the hydraulic instability. Adjustment only affects the performance of the fan also threaten the safety of the fan; more than a few phenomena once used "Waterproof Cooling Fan" happened, we must stop to check, can not continue to run the boot, otherwise it will cause great damage to the fan, You can first check is not a long-term work-flow fan under stall conditions, a significant increase in flow pressure pulsation amplitude, resonance leaf damage; the body's own body is no problem, start the design is reasonable; "Waterproof Cooling Fan" when installing stay under the risks, such as shaft imbalance or poor connection, resulting in fan vibration, bearings, couplings easily damaged; if these reasons are not, then consider the selection of the fan is not inappropriate.