10Fault nding
Table 19. Fault nding
Conditions
on page 63
on page 63
on page 64
on page 65
on page 65
on page 66
Fault The pump has failed to start or has stopped
Cause The electrical supply fuse has blown.
Remedy Change the blown fuse
Cause The motor is incorrectly wired (3-Phase pump only)
Remedy Check the connection wiring
Cause The operating voltage does not match that of the motor (3-Phase pump only)
Remedy Check the power supply
Cause The ambient temperature is too high.
Remedy Cool down ambient temperature
Cause The cooling air supply is insuf
cient or is too hot.
Remedy Check the distance from the object which could affect air ow
Cause The process gas is too hot or the maximum continuous operating pressure has
been exceeded.
Remedy Check the ambient of pumping medium and maximum inlet pressure
Cause The fan is not working or is not connected.
Remedy Check the fan connection or contact us
Cause The motor is faulty.
Remedy Contact us
Fault The pump cycles between a running and stopped state,but with power applied
(3-Phase pump only)
Cause The motor is incorrectly wired
Remedy Check the connection wiring
Cause The operating voltage does not match that of the motor.
Remedy Check your power supply
300668736_002_C7 - © Leybold 63
Fault nding
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