Cetetherm PRESSOSMART MP195NL, Руководство пользователя, Страница: 17 / 45

17
TROUBLESHOOTING GUIDE
FINDINGS PROBABLE CAUSE SOLUTION
Low pressure alarm
Pump(s) stripped Change
Overflow valve open too wide Set
Low pressure alarm set point too
high Set
Pump(s) do not start
Fuse(s) splashed Replace and control
Set point too high Set
Relay scratched Replace
Pump(s) out of order Replace
Pump No. inversed in 1pump
mode Set
High pressure alarm
Overflow valve too screwed Set
Overflow valve fooled or blocked Clean or replace. WARNING:
unscrew the spring before
dismounting
High pressure set point too low Set
Pump(s) always on
Pump(s) bad drained Drain
Pump(s) fooled Clean
Not enough output pressure Check the quotation
Overflow valve open too wide Set
Pressure set point too high Set
Too high differential value Set (Standard value=0.5)
Network leakage Check
Setting tee closed Open 1 turn
Lack of water default
Level sensor incorrectly placed
(open tank only) Modify and set (12cm)
Level sensors out of order (open
tank only) Replace
Bad calibration of the zero weight
(closed tank only) Check weight calibration in this
users’ manual
Cold water valve closed
Check or open
Electrovalve or relay out of order Replace