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Current Location：Home >> Success Case >>Related Questions >> Oil pump vacuum pump does not rotate, what is the reason?
Oil pump vacuum pump does not rotate, what is the reason?

① lack of phase

② Buttons, circuit breakers, contactor wiring terminals loose or poor contact.

③ contactors, thermal relay contacts due to air humidity, the use of a long timewas oxidized, burned or burned coil is not working.

④ lack of vacuum pump and motor stuck.

⑤ motor coil is burned.



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