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Several reasons why the DWT-1-16 axial flow roof fan suddenly stopped
Shandong Yujie Air Conditioning Equipment Co., Ltd. is a high-tech professional company integrating R&D, manufacturing and sales. The company is mainly engaged in the research and development and production of central air-conditioning products: explosion-proof heater units, heaters, air conditioning units, purification units, fresh air. Ventilators, jet units, fan coils, centrifugal fans, axial fans, and OEM for many well-known brands, more product information can be inquired, contact: generation manager, phone
Several reasons why the DWT-1-16 axial flow roof fan suddenly stopped
1. Cause of failure (1) Loose or poor contact of the transmission line connector
(2) Generator fuse blown
(3) The unit has a short circuit or open circuit failure
2, maintenance methods
(1) Check whether the transmission line connector on the fan unit is loose or oxidized, and the oxide should be removed and connected firmly.
(2) Check if the fuse is blown, if the fuse is replaced with the fuse of the same specification
(3) Check whether the transmission line, rectifier circuit, fan, etc. are short-circuited or disconnected as follows:
1 Short-circuit fault check: The axial-flow fan adopts a three-phase bridge rectifier circuit. The multimeter measures the forward and reverse resistance values ​​of the rectifier diodes. If the forward and reverse resistance of each diode is small, it may be The diode or fan is short-circuited and should be repaired or replaced separately.
2 Check of open circuit fault: measure the oil voltage output of the fan output, disconnect the internal line of the transmission line, disconnect the rectifier diode or open the generator coil. You can use the multimeter R*100Ω gear to test, you can find the breaking point and replace the damaged components.
Maintenance Tip: If the rectifier is damaged and there is no rectifier of the same type, you can use the car or tractor generator rectifier for emergency replacement.
Master the above methods and deal with them easily when they encounter similar phenomena. It saves time and saves unnecessary expenses.
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