GRANUDOS S5, control unit
Index: 02
Date modified: 11/05/2021
OI No.: BA SW 014-02 Granudos S5-Steuereinheit EN.docx
Page 22 of 29
7.
Fuse F2 ALARM
Secondary fuse 24V-500mA
The fuse F2 has blown. The
dosing and booster pump stop
Renew the fuse and check whether all other fuses
show the correct fuse value. If F2 fails again,
exchange the circuit board
8.
Fuse F9 ALARM
Dosing pipe (heating)
The fuse F9 has blown. The
dosing and the booster pump
keep running.
Check the chlorine dosing pipe (heating),
exchange, if necessary, and renew the fuse.
9.
Fuse F10 ALARM
(chlorine dosing motor)
The fuse F10 has blown. The
chlorine dosing (activation) and
booster pump keep running.
Check chlorine motor for blockages, remove
blockage, as the case may be, and renew the fuse.
Check the chlorine dosing motor; exchange, if
necessary, and renew the fuse.
10.
Fuse F11 ALARM
(acid dosing pump)
The fuse F11 has blown. The
acid pump’s control is active
and the booster pump keeps
running.
Check the acid dosing pump; exchange, if
necessary, and renew the fuse.
11.
Fuse F14 ALARM
Collective fuse for sensors: Cl
empty, flow
The fuse F14 has blown. The
booster pump and the dosings
stop.
Check the “Chlorine empty” and “Flow min”
sensors in the suction pipe, renew the defective
sensor and the fuse (input test).
12.
CCT OFF, MESSAGE:
The control unit is deactivated
by the central control technol-
ogy. No dosing, no alarm mes-
sage given. The dosing device
stops.
No action, since it has been deactivated externally.
13.
“Dos-limit Cl” (chlorine)
Chlorine dosing time-out
ALARM:
The dynamic dosing time for
chlorine has been exceeded.
Chlorine dosing has
stopped, see 6.2.2
Check the function of the dosing: Dosing screw
blocked or worn? Eliminate fault or blockage. (see
also Chapter 7 for the dosing unit).
Check the dosing performance setting, increase, if
necessary.
Check the M&C control
14.
“Dos-limit pH” (acid) pH
dosing time-out ALARM:
The dynamic dosing time for
pH (
acid dosing
) has been
exceeded.
Acid dosing has
stopped, see 6.2.2
Check the function of the dosing. Eliminate fault or
blockage. (see also Chapter 7 for the respective
dosing unit).
Check the dosing performance setting,
increase,
if necessary.
Check the M&C control
15.
filter dis.
MESSAGE:
Filter disinfection is active.
No action
Malfunction without display in the device:
Malfunction
Cause
Actions
16.
The display is dark and the
device is turned off
a)
No supply voltage
Restore the supply voltage
b)
The main fuse on the housing or the front panel has blown
Renew the fuse
c)
The fuse F1 or F2 has blown
Renew the fuse
d)
The transformer is defective
Renew the circuit board
17.
The flushing tub overflows
when shutting down the
GRANUDOS
a)
Leaking floating valve:
Renew diaphragm
b)
Switch body in the suction pipe is blocked:
Foreign objects in suction pipe
Clean suction pipe
18.
The dust extraction agitator is
not running
a)
The fuse F5 has blown
Renew the fuse
b)
Check the agitator motor, including the condenser.
19.
The dust extraction flushing
valve does not switch
a)
The fuse F4 has blown
Renew the fuse
b)
Check the solenoid valve.
20.
The solenoid knocker at the
dosing hopper does not work
a)
The fuse F7 has blown
Renew the fuse
b)
Check the solenoid knocker.
21.
The booster pump does not
start up
a)
The fuse F8 has blown
Renew the fuse
b)
Check the pump, including the condenser.
