GRANUDOS S5, control unit
Index: 02
Date modified: 11/05/2021
OI No.: BA SW 014-02 Granudos S5-Steuereinheit EN.docx
Page 21 of 29
7.2
Troubleshooting
Tip!
All faults and messages are displayed in the status line on the display. In addition, they may
be queried in the Event log.
An error will only be displayed once it has occurred uninterrupted for at least 6 seconds.
Attention! In the event of a fault indication, it is also possible that switches or sensors are
defective!
No collective fault for chlorine / acid empty!
Back to main menu: Simultaneously touch the two arrow keys for 3 seconds.
For additional information, see the operating instructions for the respective dosing device,
in Chapter 7.1,
Fault display
Cause / effect
Actions
1.
Chlorine empty notification:
The “Chlorine empty” sensor was
triggered
Notification only; further
switching only via relay
This notification serves for
information purposes only, no
action ensues. The dosing and
the booster pump keep
running.
1. Refill chlorine or change container
2. If the dosing hopper is not empty, recalibrate
the empty switch (see OI Dosing unit)
3. Renew and calibrate the empty switch!
2.
pH empty notification
The “Acid empty” sensor was
triggered
Notification only; further
switching only via relay
The acid dosing stops, chlorine
dosing and the booster pump
keep running.
1. Replace the empty acid container with a full one
2. If the acid container is not empty, the empty
switch is faulty.
3. If the suction lance is new, check the float’s
functional direction, float at the bottom
empty
3.
Minimum pressure ALARM:
The pressure switch on the booster
pump reports insufficient flow
pressure
Dosing is stopped. The booster
pump has been deactivated.
The device automatically
switches into Startup mode
with 5 starting attempts – see
6.2. 2
1. Supply pressure too low
Check pressure
2. Booster pump faulty
Check pump
3. Pressure switch faulty
Check pressure switch
4. Set a lower response pressure at the pressure
switch (see OI Dosing unit)
To start, manually acknowledge alarm (6.3)
4.
Level min ALARM (flushing
tub):
The water level in the flushing tub is
low; more water is suctioned off
than runs into the flushing tub
through the floating valve.
Dosing is stopped. The booster
pump has been deactivated.
The device automatically
switches into Startup mode
with 5 starting attempts – see
6.2. 2
1. Floating valve function:
a)
The water inlet should gently follow the float’s
movement. When OK, calibrate the water level.
See OI Dosing unit, chapter Commissioning
b)
If this is not the case, insert a new diaphragm in
the floating valve.
2. Insert a hole washer with a smaller drill hole
3. Dirt filter contaminated
Clean filter
To start, manually acknowledge alarm (6.3)
5.
Level max ALARM (flushing
tub):
The water level in the flushing tub is
too high, less water is siphoned off
than is flowing into the flushing tub
through the floating valve.
Dosing is stopped. The booster
pump continues to run for a
maximum of 10 minutes.
Acknowledge the alarm, use
the shortcut to return to the
operation mode.
1. If the injector's suction capacity is OK:
a)
Floating valve function:
The water inlet should gently follow the float’s
movement. When OK, calibrate the water level.
See OI Dosing unit, chapter Commissioning
b)
If this is not the case, insert a new diaphragm in
the floating valve.
2.
If the suction capacity is not sufficient, see under
fault display
“suct. pipe ALARM”
6.
suct. pipe ALARM (flow):
The water flow in the suction pipe is
too low. The switch body of the
flow switch does not rise, the switch
LED lights up.
Dosing is stopped. The booster
pump continues to run for a
maximum of 10 minutes.
Acknowledge the alarm, use
the shortcut to return to the
operation mode.
1.
Check booster pump functioning.
2.
Dirt filter contaminated
Clean filter
3.
Blocked suction opening in the flushing tub
4.
There may be particles in the injector’s nozzle
or in the suction pipe, due to particles entering
during installation or from the chlorine container.
5.
Insert a hole washer with a larger drill hole or
remove it entirely
6.
Blocked non-return valve in the dosing line
7.
Diffuser nozzle worn out, if D > 6.5mm, replace
nozzle
