7
–TROUBLESHOOTING
COD.60M12/24.A.2018
EN
THE PRESENT MANUAL BELONGS TO -
Schenker Italia
- ALL RIGHTS RESERVED
50
7.2 Electronic issues and their solution
•
Pushing the start button the system does not start:
Check that the by-pass is excluded (selector turned anticlockwise) and that the pumps are activated (pump 1
and pump 2 selectors turned clockwise).
Still the system does not start ...
Check that the system is electrically connected, according to the diagram shown in the manual, and that the
main magnetothermal switch is activated.
Still the system does not start ...
Check if power supply to the electrical box arrives, measuring the voltage with a tester between the + and -
terminals
If the system starts (the green light of the start button lights up, and after about 20 seconds the system goes
into alarm, since the pump is not started) the problem is due to the insufficient battery charge. Charge the
batteries and try again.
If the system does not start, check all the electrical connections between the remote panel and microcomputer
again and replace the microcomputer box or the connection cable or the remote panel if necessary.
•
Pressing the start button the system starts but goes into alarm after about 25 seconds.
Check if the watermaker is in hydraulic block (pressure indicated by the pressure gauge above 9-10 bar and
pumps off). In this case, carry out the reset procedure indicated in the manual and restart the system.
Still the system does not start (it goes on the block after about 20 seconds).
Disconnect the pressure switch from the terminal board. Activate the system manually by inserting the by-
pass. Measure the operation of the pressure switch with a tester in "ohm" position. The pressure switch must
give, under normal conditions, a closing signal followed by an opening signal, every 3-4 seconds.
If the signal is always open or always closed, the pressure switch must be replace
