The status LED (C) of the radiator thermostat
supplements the display with application-specific
flashing codes.
Status LED Device status Recommended action
Flashes orange Pairing mode (is
active) or device is
communicating with the
controller
Please wait
Flashes green Pairing mode
(successful) or process
confirmed
Flashes red Pairing mode (not
successful) or
process failed
If this is the first pairing attempt, please try
again. Otherwise observe the fault indication
on the display and contact the service team if
necessary.
In normal operation, a plurality of further
flashing sequences, also in other colours
than those mentioned in the table, are
possible.
Mounting instructions
Property damage owing to defective heat-
ing system!
Mounting of the product on defective heat-
ing systems may result in damage to the
product itself (e.g. owing to leaking hot wa-
ter). Have an expert repair damage to the
valves or to the heating system. Observe
the maintenance intervals for your heating
system including valves.
The device displays errors with a need for
action in the display area (3). For an over-
view of possible error codes, see:
www.bosch-smarthome.com/rom/
radiator-thermostat-2
The standards and directives applicable in
your country must be observed during plan-
ning, set-up, operation and maintenance.
In the event of visible damage to the exist-
ing thermostat, to the valve or to the heat-
ing pipes, please consult an expert.
Take care not to catch your fingers when
screwing on the adapter!
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