16
NETAFLEX™ 3G USER MANUAL
3)
Compare the readings of the pressure gauge and the Rotameters of the dosing channels to the readings
before the malfunction started and check wether changes occurred to the hydraulic conditions.
If YES, restore the original hydraulic conditions.
If NO or if the malfunction is still not fixed after restoring the original hydraulic conditions,
have a qualified electrician check the system pump:
Does it function? Does it rotate in the correct direction?
If the pump does not rotate in the correct direction - the electrician should swap between
phases L1 and L3 (see the system pump Manual).
4) Make sure there is no air pocket in the system pump impeller chamber:
Loosen the dosing system pump's bleeding screw and wait until a stable flow, free of air-bubbles, is
obtained, then retighten the bleeding screw (act according to the instructions in the system pump Manual).
5) Check the system pump's impeller chamber for clogging:
If it is clogged - it should be dismantled and thoroughly cleaned (act according to the instructions in
the system pump Manual).
If after implementing all the above steps the malfunction is still not fixed - consult your your local Netafim™
representative.
Symptoms regarding a single dosing channel
If one or more of the following symptoms occur regarding a
single dosing channel, perform the actions listed bellow:
TROUBLESHOOTING
A
B
C
D
G
E
F
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