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Current Location：Home >> Success Case >>Related Questions >> Vacuum oil pump vacuum pump is not activated what is the reason?
Vacuum oil pump vacuum pump is not activated what is the reason?

First: lack of phase.

Second: Buttons, circuit breakers, contactor wiringterminals loose or poor contact.

Third: contactors, thermal relay contacts due tomoisture in the air, the use of a long time was oxidized or burned, the coil isburned

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