INSTRUCTIONS MANUAL AUTOMATIC FILTERS
FCD-FACD-FFD /DT /DP /DT-DUAL /DP-DUAL
s.r.l.Milano - ITALY
Page 23 of 23
fcd-dp_mi-r4.doc –
r.4
11. TROUBLE-SHOOTING
GUIDE
PROBLEM
CAUSE
HOW TO SOLVE
•
The electronic
programmer does not
switch ON
•
electrical power is
disconnected
•
the programmer is defected
•
connect electrical power
•
replace the programmer
•
The regeneration does not
run
•
electrical power is
disconnected
•
the programmer is not correctly
adjusted
•
the programmer is defected
•
connect electrical power
•
adjust correctly the
programmer
•
replace the programmer
•
Regeneration is
electrically started but it
does not run hydraulically
•
there is not supplying of pilot
fluid (air or water)
•
one or more solenoid valves
are defected
•
connect properly the supplying
of pilot water or compressed air
•
replace the defected solenoid
valves
•
There is a leakage of
water to drain during
service
•
one among (or both)
membrane valves no. 1 and 5
does not close properly.
•
check the proper working of
the pilot solenoid valves
•
check and clean the seat of
the plate of the membrane
valve
•
The unit does not feed
water
•
the membrane valve no. 2 does
not open
•
check the proper working of
the pilot solenoid valve
•
There is a leakage of
filtering media to the drain
or to the outlet line
•
one nozzle of distribution
system is damaged or broken
•
replace the nozzle
Only for DP and DP-DUAL arrangement
•
The values of pressure
shown on the display of
the programmer are by far
different than the ones
gauged by manometers
•
the manometers are not quite
calibrated
•
the pressure transducers are
not quite calibrated i sensori di
pressione sono starati
•
check the real pressure values
by using a standard instrument;
then replace the instrument
(manometer or transducer)
which gauge the uncorrect
value *
* Normally, a difference of approx 3 % between the values gauged by the two different
measurement systems is acceptable.
