Page 10 of 20
3.
TROUBLESHOOTING
3.1.
VACUUM UNIT
Problem: The vacuum pump does not start.
CAUSE
SOLUTION
The pump motor is not receiving
voltage
Check the pump's electrical terminals
Check the corresponding circuit-breaker
Check that the working temperature is not too high
(>35ºC), as this might have caused the circuit breakage.
The pump's starter protector is
blocked, as a result of the
condenser not reaching the
appropriate temperature.
Check that the condenser temperature is sufficient to permit
the start-up of the vacuum pump.
Pump wheel seizure. The motor
axis will not turn
Contact the Technical Assistance Department. Send the
pump to TELSTAR for inspection
Problem: A vacuum cannot be obtained in the unit
CAUSE
SOLUTION
The motor turns but does not
create a vacuum.
Motor/pump coupling broken. Send the pump to TELSTAR
for inspection
Problem: The pump is not creating the maximum vacuum pressure.
CAUSE
SOLUTION
Lack of oil
Check the level of oil in the pump and add if necessary
Contaminated oil
Empty the oil from the pump and fill it with new oil
Problem: Abnormal pump heating
CAUSE
SOLUTION
Lack of ventilation or extremely
high temperature (above 35ºC) in
the pump area
Position of the vacuum pump in an area with better
ventilation.
Problem: Mist leak from the emission channel
CAUSE
SOLUTION
Air ballast open too far
Close the air ballast
There is a leak in the unit
Locate the leak
