Junkers MB LAN, Installation Instruction

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Troubleshooting
MB LAN – 6 720 805 489 (2013/01)
13
Flashing red LAN cable not
connected. ▶ Make LAN
connection.
Router is switched off. ▶ Switch router on
1)
.
DHCP is disabled. ▶ Enable DHCP at
router
1)
.
Manually set MAC filter
prevents IP address
being issued. ▶ Set MAC filter for the
MAC address printed
on the enclosure
(

Fig. 13, [1],
page 64).
No IP address available
for the module. ▶ Check router
configuration
1)
.
LAN cable faulty. ▶ Replace LAN cable.
Alternating red and
green BUS and LAN
connection separated
after commissioning. ▶ Disconnect module
from power supply.
▶ Make BUS and LAN
connections.
▶ Recommission
module.
Constantly orange LAN connection
established; no access
to Junkers server via
internet. ▶ Disconnect module
from power supply
for 10 seconds and
recommission it.
-or-
▶ Establish internet
connection
1)
.
-or-
▶ If internet access for
the router is
periodically blocked,
remove the
timeout
1)
.
-or-
▶ Open ports 5222
and 5223
1)
.
Flashing green Heat source switched
off. ▶ Switch ON heat
source.
BUS Initialization lost ▶ Resetting personal
settings.
Module not connected
to BUS system. ▶ Make BUS
connection.
Maximum cable length
for BUS connection
exceeded. ▶ Make shorter BUS
connection.
Short circuit or cable
break in the BUS
connection. ▶ Check BUS
connection and
repair if required.
Constantly green No faults. Standard operation.
1) See manufacturer's instructions.
Faults with effects on the App function are also shown on
the App (e.g. no connection with the XMPP server, no
connection with the MB LAN, incorrect password, ...).
ON/OFF indicator Possible cause Remedy
Table 9 Fault table