Product Manual

Faults
CAP-834 47
Fault description
Cause
Remedy
Screw compressor
does not start au-
tomatically or does
not discharge after
previous switching-
off by reaching the
final pressure or
from idle.
Network pressure set too high
Reset network pressure  Controller documentation
Interruption in the power cir-
cuit
Check power circuit for interruption
Ambient temperature below
+34F (+1 °C), message "Oil
temperature too low"
Install additional heating or temper compressor room
and also contact the manufacturer
Switching times are activated
in the circuitry
Check switching and pressure times in the circuitry
 Controller documentation
System does not
start up when the
start key is pressed
Network pressure greater
than switch-on pressure
Heed network pressure and change settings
 Controller documentation
S y m b o l "remote" flashes
Remote control activated  Controller documentation
Lacking voltage on the screw
compressor
Check whether there is voltage
Electrical fault in the control-
ler
Check controller
Switching times are activated
in the circuitry
Check switching and pressure times in the circuitry
 Controller documentation
Compressed air
contains a lot of oil
(oil consumption
too high)
Return line for the oil is
blocked
Clean or replace return line for the oil  ‘Clean/replace
return line’ on page 48
Flawed air/oil separator
Change air/oil separator  Chapter 7.4.9 ‘Replacing
the air/oil separator’ on page 41
System stops be-
fore reaching the
final pressure
Overheating or overpressure
Remedy fault  Controller documentation
Interruption in the control
power circuit
Check power circuit
Pressure drop
Pressure difference of the
filter too high
Replace filter