21
10.4
Troubleshooting
fault
CauSe
ReMedy
The valve leaks or the seal of the
ball is not enough
Presence of foreign bodies
• Make sure there are no foreign bodies;
if so, remove them.
Worn seals
• Contact your nearest assistance centre.
The valve is not working and the
display is off
Lack of power
• Check the connections, the cables, and
the controls. Replace the cable.
If the problem persists, contact your
nearest service centre.
The valve does not work
Geared motor broken
• Replace the geared motor. The
instructions can be found on our Website
www.aragnet.com - ADDIN D30025.
The valve does not stop at the
preset point
Malfunction of the microswitches
in the geared motor
• Contact your nearest assistance centre.
Totalizers do not progress during the
passage of liquid.
Rate is beyond operation limits of
the flowmeter
• The model of the flowmeter is not ad-
equate for the flowrate to be measured.
Replace the flowmeter.
The paddle-wheel is locked
• Clean or replace the paddle-wheel group
if necessary.
Displayed flowrate is not stable
Presence of turbulence or air in
the circuit
• Check the circuit
.
Worn paddle
• Replace the paddle
.
MAINTENANCE
