8 Problem solving
Warning
Before carrying out any maintenance, repair work or adjustment, press the stop button,
wait until the compressor has stopped (approx. 30 seconds) and close the air outlet
valve.
Press the test button on top of the electronic water drain unit 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
• Initial start-up
Open and lock the isolating switch.
The air outlet valve can be locked 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.
Always apply all relevant Safety precautions.
Faults and remedies, compressor
On compressors equipped with an Elektronikon II regulator, if the alarm LED is lit or flashes, consult
sections Status data menu and Service menu.
Condition Fault Remedy
Compressor starts running, but
does not load after a delay time
Solenoid valve out of order Replace valve
Inlet valve stuck in closed position Have valve checked
Leak in control air tubes Replace leaking tubes
Minimum pressure valve leaking
(when net is depressurized)
Have valve checked
Compressor does not unload,
safety valve blows
Solenoid valve out of order Replace valve
Inlet valve does not close Have valve checked
Condensate is not discharged
from condensate separator during
loading
Discharge tube clogged Check and correct as necessary
Compressor air output or pressure
below normal
Air consumption exceeds air
delivery of compressor
Check equipment connected
Choked air filter element Replace filter element
Solenoid valve malfunctioning Replace valve
Leak in control air tubes Replace leaking tubes
Inlet valve does not fully open Have valve checked
Oil separator clogged Have element replaced
Instruction book
82 API603130
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