9.01
Troubleshooting
General
As mentioned in the section dedicated to protections, the command and control board controls the
smooth operation of the compressor. It is possible that, due to the incorrect use of the machine, or in-
correct maintenance or unforeseen conditions, etc., malfunctions occur and that
only their effects are indicated. The table below aims at helping the operator solve some difficulties
should they arise while indicating their possible causes.
Problem - Cause - Solution
Below some possible failures are indicated with their causes and how to identify the correct solution.
PROBLEM
A. Start
MAESTRO
XS
works, start is allowed
but the star/triangle commutation
does not take function correctly
MAESTRO
XS
works, it enables the
start by turning green LED on, but the
compressor does not start.
B. Pressure
The system pressure does not
reach the required value.
The inside pressure exceeds the
set value .
SOLUTION
Check correct sizing of the electrical
supply. Please refer to section 4 of the
supply.
Contact the nearest authorised service
centre.
Check the inner pressure on the pressure
gauge of the separator body and compare
it with the value given by MAESTRO
XS
.
Verify the correct operation of the pressure
detection system: transducer, collector and
switching solenoid valves.
Contact the nearest authorized service
center.
Check operation.
Please contact the nearest service cen-
ter.
Clean the specific filter to remove the
cause of the block and then check opera-
tion.
Please refer to the “Installation, Use, and
Maintenance Manual”, Section 12.
Check operation.
Contact the nearest authorized service
center.
Replace the filter.
Refer to section 7 to the “Operating and
maintenance manual ”.
Please refer to the Sales Organization of
Ing. Enea Mattei S.p.A. to study equipment
improvement..
Verify the correct setting of operating
parameters.
Please refer to the "Installation Use, and
Maintenance Manual", Sections 5 and 6.
CAUSE
The electrical supply is not sufficient and
the excessive voltage drop during the
starting causes release of the contactor.
Pressure inside the compressor is higher
than the maximum tolerated value for
the start: or for an abnormal return of
the network air, or because the pressure
transducer reads an incorrect value.
The hour programming has been en-
abled.
The compressor runs within a network with
other compressors.
The load setting valve is not working
properly.
The condensate drain solenoid valve is
blocked in the open position (Optional kit
separator/condensate drain).
The minimum pressure valve does not
function correctly.
Clogged intake filter.
Request for air greater than the compres-
sor maximum capacity.
The setting of the maximum pressure
value in the [BASIC PROGRAM.] menu
is incorrect.
TI008G0001
