Product Manual

Faults
CAP-834
46
8.3 Fault table
Fault description
Cause
Remedy
Compressor tem-
perature too high
Intake or ambient tempera-
ture too high
Ventilate compressor room
Cooling air intake or outlet
blocked
Unblock cooling air intake or outlet sufficiently
Oil is soiled
Change oil
Chapter 7.4.8Replacing the oil/changing
the oil filter’ on page 40
Oil low
Top up oil
Chapter 7.4.3Checking the oil
level/topping up the oil o n page 37
Oil cooler soiled
Clean oil cooler
Chapter 7.4.6Inspect/clean coolers
on page 39
Network pressure
drops
Compressed air consumption
higher than flow capacity of
the screw compressor
Screw compressor with greater flow capacity necessary
Intake filter clogged
Replace intake filter
Chapter 7.4.10 Replacing the
intake filteron page 42
Bleeder valve blows during
compression
Check bleeder valve and replace gaskets if necessary
Intake valve does not open
Check magnet valve and plunger and replace if neces-
sary
Leaks in the compressed air
network
Seal up the compressed air network
Screw compressor
blows via safety
valve
Minimum pressure valve
blocked
Clean or replace minimum pressure valve
Safety valve faulty
Check safety valve and replace if necessary
Air/oil separator clogged
Change air/oil separator
Chapter 7.4.9 Replacing
the air/oil separator on page 41
"Overpressure
fault" or "Network
pressure too high"
Air/oil separator clogged
Change air/oil separator
Chapter 7.4.9 Replacing
the air/oil separator on page 41
Higher outside pressure pre-
sent in compressed air net-
work
Balance out outside pressure or disconnect from the
network