Problem
Possible causes
Remedy
Unusual noises during operation
● Suction chamber dirty
● Switch off the vacuum pump immedi-
ately.
● Clean suction chamber.
● Damage to the bearing or gear
wheels
● Switch off the vacuum pump immedi-
ately.
● Contact Pfeiffer Vacuum Service.
● Imbalance due to deposits on or in
the pistons
● Clean the pistons.
LEDs on the operator panel do not
match the operating state of the
vacuum pump (e.g., LED status:
“off” even though voltage supply is
present)
● Operator panel circuit board is de-
fective due to overvoltage or faulty
pin assignment at the “remote" in-
terface
● 24 V applied via third-party power
supply with deviating potential
● Replace electronic drive unit RC
● Contact Pfeiffer Vacuum Service.
Tbl. 17:
Troubleshooting
12.3 Error codes
Errors (** Error E–––– **) always cause the connected peripheral devices to be switched off.
Warnings (* Warning F –––– *) are only displayed and do not cause components to be switched off.
Handle malfunction messages
1. Read out error codes via Pfeiffer display and control units or a PC.
2. Remove the cause of the malfunction.
3. Reset the malfunction message with parameter
[P:009]
.
– Use preconfigured quick keys with the symbol
or display tiles on Pfeiffer Vacuum display
and control units.
Error
code
Problem
Possible causes
Remedy
Err001
Excess rotation
speed
● Error in the frequency converter
(FC)
● Contact
Err002
Motor excess voltage
● Error in the frequency converter
(FC)
● Contact Pfeiffer Vacuum Service
● Parameter 13 was not activated
during pump operation with brak-
ing resistance
● Check parameter 13 and set as appropri-
ate for the equipment, if applicable:
RC 4000 = deactivated
RC 5500 = activated
RC 7500 = activated
RC 15000 = activated
● Parameter 13 was activated dur-
ing pump operation without brak-
ing resistance
Err023
Motor undervoltage
● Error in the frequency converter
(FC)
● Check the mains input voltage
● Contact Pfeiffer Vacuum Service
Err042
Checksum errors
● Inconsistent software
● Contact Pfeiffer Vacuum Service
Err045
Excess temperature
of motor or braking
resistor
● Insufficient cooling
● Fan filter mats soiled in control
cabinet
● Check the cooling
● Clean the fan filter mats or replace them
Err091
Hardware error
● Hardware not detected
● Contact Pfeiffer Vacuum Service
Err098
Internal communica-
tion error
–
● Contact Pfeiffer Vacuum Service
Err104
External error
● Error in the backing pump of the
HiLobe pumping station
● Check the backing pump of the HiLobe
pumping station
Err115
Invalid pump temper-
ature signal
● Oil temperature sensors defec-
tive or not connected
● Check the sensors and their cables
● Replace the sensors and their cables, if
required
Err117
Vacuum pump ex-
cess temperature
● Insufficient cooling
● Improve the cooling
● Check the operating conditions
● Observe the intended use
Malfunctions
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