The reason why the fan cannot start
Capacitor open circuit, short circuit or insufficient capacity – After turning on the electric fan motor, the quality of the electric fan capacitor can be detected by a 500V insulation resistance metere. The method is to connect the two leads of the capacitor to the 500V insulation resistance meter respectively, and the resistance value of the insulation resistance meter ought to be zero at the beginning of the detection, which will swiftly rise to hundreds of megohms. Then remove the insulation resistance meter and short-circuit the two leads of the capacitor. Immediately, you will hear the sound of discharge and facility will generate sparks, indicating that the capacitor is neither short-circuit nor open-circuit, otherwise you are supposed to replace the electric fan capacitor.
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Poor contact of cover winding or open circuit of stator winding – Turn on the electric fan motor, seek the fault point, re-solder, and in the meantime, chase down the open circuit of the stator winding, and re-connect it; when the electronic winding is seriously damaged, substitute it with a new winding.
Model Number: FT-25MC
Input Power: 30W
input voltage: 220-240V~50Hz
Color: Chrome/Copper/Black/Red/Blue/Pink/White/Silver/Other color
OEM support : Yes
Certification: CE/GS/ETL/CB
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Electric fan coil winding open circuit – Find out the broken point and carry out welding treatment. When the number of broken wires is large and the damage is serious, it is indispensable to rewind the electric fan motor winding.
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No power supply voltage or the power supply voltage is too low – First, utilize a multimeter to measure whether the voltage is normal. If there is no voltage, you should inspect the circuit; if the voltage is too low, you are supposed to find out the cause and restore the regular voltage.
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The electric fan bearing is too tight or too loose – Excessive loose bearing hole of electric fan will cause friction between stator and rotor. We are supposed to open the electric fan motor and replace the bearing when the bearing is too loose; When the bearing is too tight, we need to open the electric fan to clean and refuel the bearing or adopt the reamer to properly loosen the bearing hole to make it rotate flexibly.
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