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G
After an attempt to start the compressor, it stops
due to tripping of the thermal cutout caused by
B
forcing of the motor.
During operation, the compressor stops for no
apparent reason.
When operating, the compressor vibrates and
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the motor emits an irregular buzzing sound. If it
stops, it does not restart although the sound of
the motor is present.
Irregular presence of oil in the network.
Leaking of condensate from the vent cock.
Any other type of operation must be carried out by authorized Service Centers, requesting original parts. Tampering with the machine may impair
its safety and in any case make the warranty null and void.
CAUSE
Incorrect or insufficient lubrication.
Inefficient electrovalve.
Tripping of the thermal cutout of the motor.
Electric fault.
Single-phase motors:
faulty capacitor.
3-phase motors:
One of the phases of the 3-phase power supply
is missing due probably to blowing of a fuse.
Too much oil inside the unit.
Wear on segments.
Presence of dirt/grit inside the cock.
12
REMEDY
Check level, top up and if necessary change
the oil.
Call the Service Center.
Check level oil.
Single-stage, mono-phase versions: operate
on the button of the pressure switch returning
this to the OFF position (fig. 1a).
Reset the thermal cutout (fig. 2) and restart
(figures 1b).
If the fault persists, call the Service Center.
Versions with delta-star starter:
operate on the button of the thermal cutout
located inside the box of the electric panel (fig. 3c)
and restart (fig. 5d).
If the fault persists, call the Service Center.
Other versions:
Operate on the button of the pressure switch
returning this to the OFF position and then to
ON again (fig. 1a-1b).
If the fault persists, call the Service Center.
Call the Service Center.
Have the capacitor replaced.
Check the fuses inside the electric panel or the
electric box and if necessary replace those that
have been damaged (fig. 17).
Check oil level.
Call the Service Center.
Clean the cock.