Product Manual

7 Problem solving
Warning
Before carrying out any maintenance, repair work or adjustment, stop compressor, wait 3
minutes and close the air outlet valve.
Press
the test button on top of the electronic water drain until the air system between the
air receiver and outlet valve is fully depressurized.
Press the emergency stop button and switch off the voltage.
Depressurise the compressor by opening the oil filler plug one turn.
For location of components, see sections:
•
Introduction.
•
Condensate system.
•
Operation instructions
•
Maintenance.
Open and lock the isolating switch.
Lock the air outlet valve during maintenance or repair as follows:
•
Close the valve.
•
Remove the screw fixing the handle with the wrench delivered with the compressor.
•
Lift
the handle and turn it until the slot of the handle fits over the blocking edge on the
valve body.
•
Fit the screw.
The operator must apply all relevant Safety precautions.
Before electrical maintenance
Wait for at least 10 minutes before starting any electrical repairs as dangerous high voltage
remains
on the capacitors of the start and speed regulation unit during some minutes after
switching off the voltage.
Faults and remedies, compressor
If the alarm LED is lit or flashes, consult sections Event history menu or Service menu.
Condition Fault Remedy
Condensate is not discharged from
condensate
separator during loading
Discharge flexible clogged Check and correct as necessary
Condition Fault Remedy
Fan out of order Fan overload On GA 18 up to GA 30 VSD+,
Replace fan
On GA 37 VSD+, Reset the fan
switch
(Q15) in electrical cabinet.
Replace fan if necessary
Condition Fault Remedy
Compressor air output or pressure
below normal
Air consumption exceeds air delivery
of compressor
Check equipment connected
Instruction book
2920 7110 00 101