29
Troubleshooting
6 720 612 220 GB (05.09)
Complaint
Cause
Remedy
Required temperature not
reached
Thermostat valve(s) in the control
room set to low
Fully open the thermostat valve(s)
or have an expert replace them with
manual valve(s).
Flow temperature controller on the
heating appliance set too low
Set flow temperature controller
higher.
Air lock in the heating system
Vent radiator and heating system.
Required room tempera-
ture is greatly exceeded
Installation location of the RT 10 not
suitable, e.g. outer wall, proximity to
window, draught, ...
Choose a better installation location
for RT 10 and have it moved by an
expert (see Installation Instructions
of the RT 10).
Excessive room tempera-
ture fluctuations
Temporary effect of heat from other
sources on the room, e.g. from sun-
shine, room lighting, TV, fireplace
etc.
Choose a better installation location
for RT 10 and have it moved by an
expert (see Installation Instructions
of the RT 10).
Temperature rise instead
of fall
Time of day incorrectly set
Check setting.
Room temperature too
high in Economy mode
Building has high degree of heat
storage
Select Economy mode earlier.
Incorrect or no control
Bus connection defective for the
devices using the bus
Have the bus connection checked
and, if necessary, rectified by an
expert according to the connection
diagram.
Only Automatic mode can
be set
Operating switch defective
Have TD 200 replaced by a
profes-
sional
.