Siemens Building Technologies CE1B2540en 74 319 0616 0 b 18.07.2008 28/32
52 = fault storage tank temperature sensor/control
thermostat 2
54 = fault d.h.w. flow temperature sensor
60 = fault room temperature sensor
61 = fault room unit
62 = wrong room unit connected
73 = fault collector sensor
81 = short-circuit on the bus
82 = same bus address assigned several times
100 = two clock masters on the bus
120 = flow alarm
140 = inadmissible bus address or plant type
142 = no partner unit on the data bus
These error codes are very useful for service staff.
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