Siemens Building Technologies CE1B2540en 74 319 0616 0 b 18.07.2008 26/32
Tips to follow if something seems wrong
• The heating does not work:
− Check the display. If ECO (economy) is shown, no
heating is currently required due to high outdoor
temperatures!
• The heating always maintains the same room tempera-
ture:
− Check the operating mode used (only AUTO mode
provides setback and heats up again)
• The control has a room unit, but it cannot be operated:
− Check controller's operating mode. To enable the
controller to be operated from the room unit, it must
be in AUTO mode
• The required room temperature is reached either too
early or too late:
− Change the heating program
− If the building is well insulated, you can expect long
cooling down times
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