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NVP-1000・2000・2100

Power cannot be turned on.

Symptom	Causes
Power is not supplied.	Turn on the circuit breaker of the switchboard.
The power plug is disconnected from the electric outlet or inserted inadequately.	Turn off the power switch, and firmly insert the power plug to the electric outlet.
The power cord has come off the inlet.	Turn the power switch OFF and insert the power cord into the inlet.
Control output is not coming from the vacuum control unit or other relevant products.	Check for control output from the vacuum control unit or other relevant products and make sure that connections or settings are correct.
The motor error detection function has activated.	Remove the power plug from the outlet,wait a while and then turn the power switch ON. If the unit does not start after carrying out this counter measures, immediately stop operation and contact your dealer or nearest service center.
The fuse has blown.	Replace the fuse. If the fuse blows soon again, immediately stop operation and contact your dealer or nearest service center.
The power switch is malfunctioning.	Immediately stop operation and contact your dealer or nearest service center.

Depressurization will not start after starting operation.

Symptom	Causes
The depressurization container has some defects.	Take appropriate measures referring to the operation manual of the connected unit.
The pipe has come off or shows leaks from degradation.	Check the connected pipe along its piping route.
Pipes are connected incorrectly.	Check the connected pipe along its piping route.

Depressurization is not effective or vacuum level remains low after starting operation.

Symptom	Causes
The diaphragm or the valve has worn or broken.	Immediately stop operation and contact your dealer or nearest service center.
Condensation gas has accumulated inside the pump.	Discharge condensation gas to the externals using the gas ballast valve.

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