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How To Deal With The Fan Can Not Start, The Switch Trips

- Aug 14, 2018 -

Can not start, switch trip


1. The impeller rotates in the opposite direction;

2. The switch capacity becomes smaller, or the thermal protector setting value is too small to be unreasonable;

3. The startup power supply is too large, and it is recommended to start the voltage reduction for the high power capacity fan;

4. The fan load is too large (especially the centrifugal fan), and the pipe inlet or outlet regulating valve can be adjusted to the minimum;

5. Inadequate contact or in-phase contact causes phase loss, poor performance of control box accessories, or lack of phase contact at the fan.