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8
REQUEST THE ASSISTANCE OF A QUALIFIED ELECTRICIAN FOR OPERATIONS ON ELECTRIC
COMPONENTS (CABLES, MOTOR, PRESSURE SWITCH, ELECTRIC PANEL, ETC).
FUNCTION
Air leak from the valve of
the pressure switch.
Reduction of efficiency,
frequent start-up. Low
pressure values.
The motor (3) and/or the
compressor overheat
irregularly.
After an attempt to start the
compressor, it stops due
to tripping of the thermal
cutout caused by forcing of
the motor.
After an attempt to start the
compressor, it stops due
to tripping of the thermal
cutout caused by forcing of
the motor.
TROUBLESHOOTING
FUNCTION
Check valve does not perform its
function correctly due to wear or dirt
on the seal.
Condensate drainage cock (4)
open.
Rilsan hose not inserted correctly in
pressure switch.
Excessively high consumption.
Leaks from joints and/or pipes.
Clogging of the suction filter.
Slipping of the belt.
Insufficient ventilation.
Closing of air ducts.
Start-up with head of the
compressor charged.
Low temperature.
Voltage too low.
Inefficient electrovalve.
59
REMEDY
Unscrew the hex-shaped head
of the check valve, clean the
housing and the special rubber disk
(replace if worn). Re-assembler
and tighten carefully (See chapter
MAINTENANCE).
Close the Condensate drainage
cock.
Insert the Rilsan hose correctly
inside the pressure switch.
Decrease the demand of
compressed air.
Change gaskets.
Clean/replace the suction filter
(See chapter MAINTENANCE).
Check belt tension.
Improve ambient conditions.
Check and if necessary clean the
air filter (10).
Release the compressor head by
using the pressure switch push
button (5).
Improve ambient conditions.
Check that the mains voltage
matches that of the dataplate.
Eliminate any extensions.
Call the Service Center.
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