13
Troubleshooting
6 720 612 217 (05.03)
Deleting displayed faults
B
To delete a displayed fault, press
any button.
Indication of a fault in the sys-
tem, e.g. shut-off valves
closed, air in the system or
defective solar heating system
pump.
Check that the shut-off
valves are open.
Check the system.
If necessary have the sys-
tem bled.
Check whether the solar
heating system pump is
working (see
Section 5.3.2).
Display shows
(flashing red/yellow)
Cause
Remedy
Table 5
6 720 611 675-13.1J
