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Vacuum pump
Insufficient cooling air flow
temperature
rises too high
Ambient temperature is too high.
Incoming gas temperature is too high.
Improper supply voltage or frequency.
Inlet filter clogged.
Incoming pipeline's diameter is too small
or length is too long.
Check the installation site.
Check cooling fan and cover, clean
as necessary.
Maintain specified ambient
temperature condition.
Maintain specified inlet air
temperature condition.
Provide power in accordance with
the specifications.
Clean the filter.
Replace the incoming pipe with a
pipe of suitable size.