20
ELECTRONIC TROUBLESHOOTING
When pressing start button the system will not start
Check that the by-pass is not switched on (bypass switch turned anticlockwise) and that at least
one pump is activated (switch PUMP1 or PUMP2 turned on).
If the system still fails to start...
Check that electric cables are properly connected, follow the wiring scheme indicated in the
manual and that the main automatic circuit breaker is in place.
If the system still fails to start...
Check with a tester, the 12/24 VDC electrics box power supply, between and - .
If the system still fails to start...
Turn off both pump 1 and pump 2 selectors (vertical position). Push START.
If the green pilot light turn on and, after 20 seconds the system shutdown (because the pumps are
not connected) the problem is due to low battery voltage.
If the system still doesn’t start check all electric wiring, electrical connections box, pre-wired
cable remote panel for fault. Replace as required.
When pressing START the system starts, but shuts down after 20 seconds.
Check for a hydraulic block. (the pressure on the manometer will be greater than 8 bar and
pumps are shut down) . In this case perform the reset procedure and restart the system. (Page 16)
If a hydraulic block has not occurred, the most probable cause of the fault is a malfunction of the
pressure switch.
The pressure switch can be tested with following procedure:
1.
Disconnect the pressure switch cables (clamps 5 + ).
2.
Activate the by-pass and start the system in manual mode.
3.
Check with a tester in ohm position the functioning of the pressure switch. In normal
conditions the pressure switch closes and opens the circuit each 3-4 seconds.
4.
If the pressure switch remains either closed or open during the functioning of the
watermaker, the switch is faulty and must be replaced.
