10 Problem solving
Warning
Always apply all relevant Safety precautions.
Before carrying out any maintenance, repair work or adjustment, press the stop button,
wait until the compressor has stopped and close the air outlet valve.
Open the manual drain valve(s).
Press the emergency stop button and switch off the voltage. Open and lock the isolating
switch.
Depressurise the oil separator vessel by opening the oil filler plug one turn.
For location of components: see sections Introduction, Condensate system and Initial
start.
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 switch off the voltage. Only pressing the emergency stop button is not sufficient
to make the compressor voltage free.
•
If the machine is equipped with an automatic restart after voltage failure function and
if this function is active, be aware that the machine will restart automatically when the
power is restored if it was running when the power was interrupted.
Faults and remedies, compressor
On compressors equipped with an Elektronikon® controller, if the alarm LED is lit or flashes, consult sections
Shutdown warning , Shutdown and Service warning.
On compressors equipped with an Elektronikon® Graphic controller, if the alarm LED is lit or flashes, consult
sections Event history menu or Service menu.
Condition Fault Remedy
Compressor does not start or stops
during operation. Elektronikon
shows motor overload problem.
Motor overload relay (F21) open Find cause and remedy. Replace
if necessary.
Circuit breaker (Q15) or fan motor
overload (F15) open
Find cause and remedy. Replace
if necessary.
Instruction book
2920 7109 60 183
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