-
Condition
Fault
Remedy
On water-cooled compressors,
restriction in cooling water
system
Consult your supplier
Oil cooler clogged
Clean cooler
Thermostatic bypass valve
malfunctioning
Have valve tested
Air cooler clogged
Clean cooler
Compressor element out of order Consult your supplier
Oil filter clogged
Replace
Dryer
(Compressors with an integrated dryer)
For all references hereafter, consult section
Condition
Fault
Remedy
1
Pressure dew point too high
Air inlet temperature too high
Check and correct; if necessary,
clean the aftercooler of the
compressor
Ambient temperature too high Check and correct; if necessary, draw
cooling air via a duct from a cooler
place or relocate the compressor
Shortage of refrigerant
Have circuit checked for leaks and
recharged
Refrigerant compressor (M1)
does not run
See 3
Evaporator pressure too high
See 5
Condenser pressure too high
See 2
2
Condenser pressure too high
or too low
Fan control switch out of order Replace
Fan blades or fan motor out of
order
Check fan/fan motor
Ambient temperature too high Check and correct; if necessary, draw
cooling air via a duct from a cooler
place or relocate the compressor
Condenser externally clogged Clean condenser
3
Compressor stops or does not
start
Electric power supply to
compressor is interrupted
Check and correct as necessary
Thermal protection of
refrigerant compressor motor
has tripped
Motor will restart when motor
windings have cooled down
4
Electronic condensate drain
remains inoperative
Electronic drain system
clogged
Have system inspected
Clean the filter of the automatic drain
by opening the manual drain valve.
Check functioning of the drain by
pushing the test button.
Instruction book
2920 7101 41
75
Summary of Contents for CPC 40 G
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