Remedying faults
7.1
Basic information on remedying faults
Page 72
BOGE Operating instructions for scroll compressors, series EO 6...EO 22 D
Compressor faults
The information provided in the following table refers to the compressor sys-
tem or an individual scroll unit. Depending on the machine type, several scroll
units may be installed.
Table 7.1: List of possible faults
Fault
Possible cause
Rectification
No or low free air
delivery, no pressure
build-up
System components in the
compressor are leaking
Check the compressed air pipes inside the compressor;
retighten or reseal the screw connections if necessary
Scroll compressor seals are
worn out
Replace seals
Suction filter soiled
Clean suction filter
Torn V-belt
Install new V-belt(s)
Compressor system
does not start
No power to compressor
Check electrical connection
Fuses are faulty
Check mains and control fuses and replace if necessary
Power fluctuations in the elec-
trical supply network
Ensure there is constant voltage in accordance with IEC 38
Safety valve blows off
Operating pressure setpoint has
changed
Set the operating pressure to the maximum permitted pressure
of the scroll compressor
Safety valve is faulty
Replace safety valve
Control switches off as
temperature too high
Critical ambient conditions
Check installation conditions
Incorrect operating parameters
set
Change settings on the control
Cooler / fan operation faulty
Check cooler and fan functions, clean or replace components if
necessary
Sensor system faulty
Check sensor system, replace if necessary
Running unsteady
V-belt tension incorrect
Check belt tension
V-belts are not the same length
Replace with an identical belt set
Loose screw connections on
drive side
Check screw connections
