Fault Finding - Bosch R 30 Users Instructions And Customer Care Manual

5

Fault finding

Problem Cause
Desired room Thermostatic
temperature is not valve(s) set too
reached low
Temperature con-
trol for CH flow
set too low
Air trapped in
heating system
Desired room Radiators are too
temperature hot
exceeded by large
amount
Temperature rises Clock is incor-
instead rectly set
of falling
Room tempera- Building retains
ture too high in heat well
Economy mode
No display or dis- Momentary power
play unit does not failure
respond
Storage Tank Temperature con-
doesn't warm up trol is too low
6 720 610 598 GB (03.11) TD
Fault finding
Remedy
Increase thermo-
static valve set-
ting(s)
Increase CH flow
temperature con-
trol setting
Bleed radiators
and heating sys-
tem
Turn down ther-
mostatic valves
Check setting
Start Economy
mode sooner
Switch off appli-
ance at master
switch, wait a few
seconds and
switch on again
Turn the tempera-
ture control to the
desired tempera-
ture
37