Sonnen sonnenBatterie 10, Installation Instructions Manual, Page: 85 / 100

Troubleshooting | 13
KD-557 | 1000241 | EN | 02 85 / 100
13.2 sonnenProtect 4000 (optional)
Fault Possible cause(s) Solution
Grid operation (no grid outage)
The electrical consumers in the backup
circuit are not supplied with energy in
grid operation. The backup circuit lines have not been
correctly connected. Check the electrical wiring of the
backup circuit.
The miniature circuit breaker (MCB) in
the supply line to the sonnenProtect is
switched off.
Switch on the miniature circuit breaker
(MCB) .
The residual current device (RCD) or an-
other circuit breaker in the backup cir-
cuit is switched off.
Switch on all circuit breakers in the
backup circuit.
The residual current device (RCD) or an-
other circuit breaker in the backup cir-
cuit has tripped.
Check the electrical wiring and the
connected electrical consumers for
faults.
Switch on the affected circuit breaker
once any faults are corrected.
Backup operation (grid outage) – backup operation does not start
Backup operation does not start. The
Eclipse on the storage system pulses
green and goes off after several
minutes. The illuminated switch on the
sonnenProtect
does not light up .
No backup buffer has been set. The
batteries of the storage system have
discharged so much that further dis-
charging would lead to a deep dis-
charge state and therefore damage
the batteries. There is nothing that can be done be-
sides wait until the grid outage is done
and the public electricity grid once
again begins supplying electrical en-
ergy. The sonnenProtect will then
automatically switch to grid operation.
The storage system is switched off. Switch on the storage system.
Backup operation does not start. The
Eclipse on the storage system pulses
green . The illuminated switch on the
sonnenProtect does not light up .
The residual current device (RCD) or an-
other circuit breaker in the backup cir-
cuit is switched off.
Switch on all circuit breakers in the
backup circuit.
The residual current device (RCD) or an-
other circuit breaker in the backup cir-
cuit has tripped.
Check the electrical wiring and the
connected electrical consumers for
faults.
Switch on the affected circuit breaker
once any faults are corrected.
Backup operation does not start. The
Eclipse on the storage system pulses
orange . The illuminated switch on the
sonnenProtect lights up .
Electrical consumers with too high of a
power consumption are connected to
the backup circuit. Switch off electrical consumers in the
backup circuit or reduce their power
consumption.
Press the illuminated switch on the
sonnenProtect for approx. 2 seconds.
Backup operation restarts.
Only connect electrical consumers to
the backup circuit when they have a
power consumption that does not ex-
ceed the maximum power (see Tech-
nical data [P. 89]).