Fault Finding; Warning; Disposal; Current Alarms - Grundfos RCME Notice D'installation Et De Fonctionnement

21. Fault finding

Warning

Before starting fault finding, switch off the power supply. Make sure that the power supply cannot be accidentally
switched on.
Fault
1. No rainwater is supplied
to the buffer tank even
though the collecting
tank contains rainwater.
2. The booster pump is
running, but the
discharge pressure is
low.
3. No rainwater is available,
and mains water is not
being supplied to the
buffer tank.
4. The booster pump is
unable to reach the
setpoint.
5. No connection to
Ethernet.

22. Disposal

This product or parts of it must be disposed of in an
environmentally sound way:
1. Use the public or private waste collection service.
2. If this is not possible, contact the nearest Grundfos company
or service workshop.
Cause
a) The feed pump is malfunctioning.
b) The feed pump has not been set to "Auto".
c) The feed pump discharge pipe is blocked or
cracked.
d) Level sensor in collecting tank malfunctioning.
e) Level sensor in buffer tank malfunctioning.
f) Overload trip activated.
a) Air in the booster pump.
a) The mains water valve has not been set to "Auto". Set the mains water valve to "Auto".
b) The mains water valve is malfunctioning.
c) User-defined alarm is activated.
a) The consumption is too high.
b) Pipe fracture or leakage in the system.
a) Wrong host name.
Subject to alterations.
Remedy
See the installation and operating instructions
for the feed pump.
Set the feed pump to "Auto".
See section
13. Operation (2).
Remove blockage, or replace the pipe.
Check input from collecting tank level sensor on
the status display.
See section
12. Status (1).
Check sensor connections and sensor
operation. Replace the sensor, if necessary.
Check input from buffer tank level sensor on the
status display.
See section
12. Status (1).
Check sensor connections and sensor
operation. Replace the sensor, if necessary.
Check reason for overload.
Take the system out of operation by switching
the main switch off.
Slacken the vent screw on the back of the pump
sleeve and wait until airless water comes out.
Retighten the screw.
See section
13. Operation (2).
Check whether the valve is blocked by
impurities, and clean it, if necessary.
Replace the valve, if necessary.
Reset the alarm.
See sections
15.4 User-defined alarms (4.4)

14.1 Current alarms

(3.1).
Reduce the consumption, if possible.
Check the system, and repair, if necessary.
Check the host name.
See section
16.1 Ethernet.
and
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