Was Ist Zu Tun; Verhalten Der Anlage - Viessmann VITODENS 100-W Bedienungsanleitung Für Den Anlagenbetreiber

Was ist zu tun?

Verhalten der Anlage

What to do if ...
... the heating system
doesn't come on
... the boiler does not
switch on (or switched on
infrequently)
... the burner doesn't igni-
te, the fault symbol U is
displayed and Reset
flashes red
... the burner doesn't igni-
te, display shows fault
symbol U
the burner switches off
although the desired
room temperature hasn't
been reached
12
Cause
System switch switched
off
System controls inclu-
ding room thermostats
not calling for heat.
Knob tr is set to 9
Fuse has triggered (ei-
ther at the fuse board or
in the controls)
No gas
Control fault
False start
Control fault
Fault in air supply or in
the flue
Heating water tempera-
ture or room temperatu-
re is set too low
Solution
Switch on
Switch on System con-
trols to create demand
Set required heating
water temperature (see
page 9)
Contact your heating en-
gineer
Contact your gas utility
supplier or heating engi-
neer
Read off the fault codes
in the display. Contact
your heating engineer
and report fault codes.
Press Reset button. If
this attempt to start is
also unsuccessful con-
tact your heating engi-
neer.
Read off the fault codes
in the display. Contact
the heating engineer and
report fault codes.
Contact your heating en-
gineer.
Increase heating water
temperature by turning
knob tr (see page 9)
or increase desired room
temperature (see room
thermostat control manu-
al).