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6175 795 - 03
WAGO Gateway Installation and Service
Installation
Connections and Operating Elements
(continued)
LED indicators
LED
Status
Meaning
Measure
User LED U1
Green
The connection to the boiler is active.
--
Red
The CAN bus interface has the status
“Bus Off”: Short circuit or other serious
fault
H
Check CAN bus connection:
Plug, cable, terminator
H
Check whether boiler is switched on.
H
Check installation and connections of
gateway and power supply unit.
H
If the fault cannot be rectified, contact
Viessmann Technical Service.
Other
Fault
Contact Viessmann Technical Service.
Power supply unit
Legend
A
INPUT 120VAC, 60 Hz
B
OUTPUT 24VDC, 1.3A
