67
Troubleshooting
1x orange and 1
x green lighting
Test display
Once the test dis-
play has stopped,
you can continue.
10.3.2 Error codes in the display
Flashing code
Meaning
Solution
Open-end wrench
flashes at intervals
of 0.5 s
Adaptation run
at the heating
zone could not
be carried out
Check that the
actuator is cor-
rectly mounted
on the valve
and that the
connector is
plugged into
the right socket.
Exclamation mark
flashes at intervals
of 0.5 s
The heating
zone is in
emergency
mode
Perform a com-
munication test,
reposition the
wall thermostat
if necessary,
change wall
thermostat bat-
teries or replace
defective wall
thermostat.
