9 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
• Preventive maintenance schedule
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.
Faults and remedies, compressor
If the alarm LED is lit or flashes, consult sections Event history menu or Service menu.
If the alarm LED is lit or flashes, consult section 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 Replace fan.
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.
Leek in control air flexibles Replace leaking flexible.
Minimum pressure valve leaking
(when net is depressurised)
Have valve checked.
Instruction book
2920 7118 31 121
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