operation manual

53
Troubleshooting
During normal operation, the duty cycle is not usually
reached. However, repeated and radio-intensive teach-
in processes mean that it may be reached in isolated in-
stances during start-up or initial installation of a system. If
the duty cycle is exceeded, this is indicated by three slow
flashes of the device LED, and may manifest itself in the
device temporarily working incorrectly. The device starts
working correctly again after a short period (max. 1 hour).
8.4 Error codes and flashing sequences
Flashing code Meaning Solution
F1 Valve drive
sluggish
Please check
whether the valve
pin is stuck.
F2 Actuating
range too
wide
Please check the
fastening if the ra-
diator thermostat.
F3 Adjustment
range too
small
Please check
whether the valve
pin is stuck.
Battery sym-
bol (
)
Battery volt-
age low
Replace the batteries
of the device (see „7
Replacing batteries“
on page 50)
.
Antenna
symbol (
)
flashing
Connection to
Homematic IP
Access Point
is lost
Please check the
connection to the
Homematic IP Ac-
cess Point.