HomeMatic CCU2 HM-Cen-O-TW-2 Series Installation And Operating Manual page 44

Information and error messages indicated by the device LEDs
Information and error messages indicated by the device LEDs
State
Hardware starts
System start is
running
Internet connec-
tion present
Service messa-
ges pending or
updates available
Update is being
imported
Alarm messages
pending
No network
connection
No IP address
IP address pre-
sent, no Internet
connection
Recovery system
started
44
Power Internet
LED LED
On On
On Off
On On
On ---
Flashing ---
quickly
On ---
On Off
On Flashing
quickly
On Flashing
Flashing Flashing
Info
Remedy
LED
On If the LED does not exit this state,
start the recovery system (see
Section 10.2)
Flashing If the LED does not exit this state,
quickly start the recovery system (see
Section 10.2)
---
Flashing Check the system messages in
WebUI or perform an update
Flashing Please wait until the update has
quickly been imported
Flashing Check the system messages in
quickly WebUI
--- Check your network cable and the
connection between the Central
Control Unit and router/switch
Check your network configura-
---
tion. If there is no DHCP server,
proceed as described in
Section 10.1.2
Check the network configuration of
---
your router
Flashing Wait until the recovery system has
finished running
---