ROTAR Giga 100, Use & Maintenance Manual

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Rotar Giga 75-100 - Cod.197AA3900 - Rev.03 - 05/2007
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TROUBLE-SHOOTING
When a fault occurs or the safety limits set are exceeded, the red alarm light comes on and the alarm in progress is shown on
the display.
In the case of multiple alarms, use to scroll through the items.
To silence an alarm, press the RESET button.
Fault/Alarm message Cause Solution
rot.dir.error Power supply phases inverted Open the electrical cabinet and invert the
phases.
air.temp.sensor fault Fault of the temperature sensor Replace the air temperature sensor
screw.temp.sensor fault Fault of the temperature sensor Replace the screw temperature sensor
Radiator clogged Clean the radiator
Low oil level Fill the oil
Oil mist separator filter clogged Replace the filter
min.oil.temp. Low room temperature Heat the room. Wait
Low line voltage Check the voltage.
Motor temperature overload Check the operation of the cooling fan; if
necessary activate it in “manual” or with
the switch inside the electrical
compartment.
High room temperature Increase the ventilation in the room. Wait
The intake regulator did not close at
the end of the cycle. Check that current to the solenoid valve is
switched off and that the shutter opens
normally. If necessary, remove and clean
the intake regulator.
Oil mist separator filter clogged. Replace the oil mist separator filter.
Line cock closed. Open the cock.
Minimum pressure valve blocked. Check and clean the valve, if necessary
replace the gaskets.
press.sensor fault The pressure sensor is faulty. Replace the pressure sensor.
Defective draining Check the drain hose.
Oil level too high Check the oil level and if necessary
remove some.
Oil mist separator filter faulty Replace the oil mist separator filter.
Poor seal of the oil mist separator
filter gaskets Replace the gaskets.
Oil leakage from the intake
filter The intake regulator does not close Check the intake regulator and the
solenoid valve.
The compressor performs
poorly Belt loose Tighten the belt.
The intake regulator is closed and
does not open because it is soiled. Remove the filter and check the opening; if
necessary disassemble and clean it.
The intake regulator is closed and
does not open due to lack of
control. Check the operation of the solenoid valve;
replace if necessary.
The compressor does not
restart The minimum pressure valve does
not close perfectly. Disassemble the valve and clean it; if
necessary replace the gaskets.
Low line voltage Check the mains voltage.
Cold room Heat the room.
Oil in the cabin Leakage from hoses Tighten the unions.
High oil consumption
The compressor does not
compress air
Difficult start-up
max.oil.temp.
Motor thermal overload
max.press.alarm