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Prevent freezing of your central heating installation
WhenthethermostathasbeenswitchedoffforboththeCom-
fort setting and the central heating (the (!) symbol is visible),
the thermostat will keep room temperature at a minimum of
5°C(Frostprevention).Thisisthecasewhen‘UIT’(OFF)has
been selected in the central heating menu and the tapwater
menu. However, it is advisable not to set the thermostat lower
than approx. 12°C. This reduces the risk that parts of your cen-
tral heating system or water pipes will freeze considerably, in
particular when the pipes are located in a frost-exposed area.
6 Trouble-shooter
This chapter explains some faults and questi-
ons you may have regarding the functioning of
the thermostat.
Questions / complaints about your heating installation
Explanations are given in respect of likely questions.
Faults
Explanations are also given in respect of faults usually indica-
ted by the
!
symbol. Check whether you can solve the faults
yourself and call your installer if necessary. These faults may
also be caused by a connected boiler. Therefore, also check
the boiler’s display screen and refer to the corresponding
manual.
Questions / complaints about your
heating installation
Heating up takes a long time in the morning.
• Areallradiatortapsopen?Checkitout.
• Isthenighttemperaturenotsettoolow?Youmayincrease
the current night temperature by 1 or 2 degrees to prevent
slow heat up.
• Consultyourinstallerifthecomplaintpersists.
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