Bosch Junkers TR 100, Manual

Page: 18 / 92

18
TR 100
English
9 Elimination of malfunctions
Malfunction Cause Elimination
the set room temperature
is not reached thermostat valve(s) are
installed in the room where
the regulator is mounted have the thermostat valve
replaced by a hand valve or
completely open the thermo-
stat valve(s)
the flow temperature of the
heating unit is set too low set the flow temperature to a
higher value
the pre-set room tempera-
ture is exceeded the mounting location of the
regulator is inappropriate,
e.g. outside wall, close to a
window, draught,... select a more appropriate
mounting location (see chap-
ter mounting) or use an exter-
nal temperature sensor
(accessory)
too high variation in room
temperature temporary influence of
external heating sources on
the regulator e.g. by insola-
tion, room lighting, TV, fire-
place, etc. select a more appropriate
mounting location (see chap-
ter mounting) or use an exter-
nal temperature sensor
(accessory)
rise in temperature
instead of reduction the time of day is set incor-
rectly at the time switch check the setting
too high room tempera-
ture in economic operat-
ing mode high regenerative capacity
of the building select an earlier starting time
for economic operating mode
wrong or no regulation wrong wiring of the regulator check the wiring according to
the circuit diagram and correct
if necessary
no display or the colon is
not indicating very short power failure switch off and on the heating
unit main switch