6 Care and maintenance
6Operating instructions 0020177309_03
5.5 Temporary decommissioning
Temporarily decommissioning the unit will
conserve the batteries.
The room thermostat will then stop send-
ing further heating demands to the floor-
standing boiler.
▶Press and hold the « » buttons at
the same time for three seconds.
◁Temporary decommissioning is activ-
ated.
◁The display is off.
◁All heating functions are deactivated.
◁The unit updates the time, which is
not visible in the display.
▶Press any button to switch the unit back
on.
◁Temporary decommissioning is de-
activated.
◁The unit starts up again in accord-
ance with the programming.
5.6 Frost protection
The frost protection function protects the
heating system and apartment from frost
damage.
The frost protection temperature is fixed at
5 °C.
The heating programme is deactivated.
▶Press and hold the « » button for
five seconds.
◁The symbol flashes in the display.
◁Frost protection is activated.
–Target room temperature for frost
protection: 5 ℃
▶Press and hold the « » button for
five seconds.
◁The symbol goes out in the
display.
◁Frost protection is deactivated.
6 Care and maintenance
6.1 Caring for the product
▶Clean the casing with a damp cloth and
a little solvent-free soap.
▶Do not use sprays, scouring agents,
detergents, solvents or cleaning agents
that contain chlorine.
6.2 Detecting and rectifying faults
Condition: The room temperature does not reach the
programmed temperature.
▶Check that the thermostatic radiator
valves are fully open on the radiators in
the room in which the unit is installed.
Condition: The room thermostat display is off.
▶Check that the batteries of the room
thermostat have been correctly inserted
in the battery compartment.
▶Check that the battery poles are the
right way round.
▶Ensure that the batteries are not flat.
Condition: Transmission fault
▶Ensure that the boiler is switched on.
▶Check that the batteries of the room
thermostat have been correctly inserted
in the battery compartment.
▶Check that the battery poles are the
right way round.
▶Ensure that the batteries are not flat.
6.3 Change batteries
Danger!
Risk of death caused by un-
suitable batteries!
If batteries are replaced with the
wrong type of battery, there is a
risk of explosion.
▶Ensure that you use the cor-
rect battery type when repla-
cing batteries.
