Stanley B 255/10/50 Instruction Manual page 26

FAULT
G
B
During operation, the
compressor stops for no
apparent reason.
When operating, the compressor
vibrates and 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
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.
26
REMEDY
Check level oil.
Single-stage, mono-phase
versions: operate on the button
of the pressure switch returning
this to the OFF position (par.
5.5.1).
Reset the thermal cutout (fig.
19) and restart (par. 5.5.1).
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. 20)
and restart (fig. 2b).
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.
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.
23).
Check oil level.
Call the Service Center.
Clean the cock.