18
NETAFLEX™ 3G USER MANUAL
TROUBLESHOOTING
Symptoms while idle
If the following symptoms occur while the NetaFlex™ 3G is idle,
perform the actions listed bellow:
Controller warnings
• High EC
• Low pH
• While idle - Uncontrolled fertilizer/acid flow rate or a fertilizer/acid leak or breach
Action
NOTE
Make sure the dosing valve selector is in the CLOSED position.
Check if the dosing valves leak when closed:
1) Close all the manual valves
B
for fertilizers and acid.
2) Make sure the level of the solution in all the the stock tanks is higher than the
dosing valves.
3) With the controller in MANUAL mode, set all the dosing valves to OFF
(see the Controller Manual).
4) Disconect one of the the dosing valves from the Venturi
(downstream from the dosing valve).
5) Open the fertilizer manual valve
B
.
If a leak from the dosing valve is visible - disconect the dosing valve from the dosing channel.
6) With the controller in MANUAL mode, set the dosing valve to ON
(see the Controller Manual).
7) Thoroughly clean the dosing valve with running water.
8) Repeat steps 4-7 for each fertilizer and acid dosing channel.
9) After completing the procedure, open all the manual valves
B
for fertilizers and acid.
10)
If the malfunction is still not fixed - replace the dosing valve
.
If after implementing all the above steps the malfunction is still not fixed - consult
your local Netafim™
representative
.
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