A3 Fault Message Module 2: Safety Equipment 4 - Viessmann Vitotronic 11 CC1E Installation And Service Instructions Manual

Fault messages
(cont.)
Cause
Fault, safety equipment at "X2" of plug-in adaptor 2 for
external safety equipment

A3 Fault message module 2: Safety equipment 4

Boiler cools down.
Cause
Fault, safety equipment at "X1" of plug-in adaptor 2 for
external safety equipment
A7 Fault clock module in programming unit
Control mode
Cause
Fault, clock module programming unit
AA Configuration fault, TSA function
Control mode
Cause
Therm-Control configuration fault: Plug
ted.
AB Configuration fault, heat exchanger set
Control mode, DHW cylinder may be cold.
Cause
Configuration fault, cylinder loading system: Parameter
"00:3" in the "DHW" group is set, but plug
plugged in and/or parameter "53:1" in the "General"
group and "55:2" in the "General" group are not set.
AC Configuration fault, return temperature control
Control mode
Cause
Configuration fault, return temperature control: Parame-
ter "0C:1" in the "Boiler" group is set, but plug
not plugged in and/or parameter "55:1" in the "Gener-
al" group is not set.
AD Configuration fault, butterfly valve
Control mode
Measure
Check safety equipment, and reset if required.
Measure
Check safety equipment, and reset if required.
Measure
Replace the programming unit.
Measure
not inser- Insert plug
aJA
■
Only for gas condensing boilers, e.g. Vitocrossal:
■
Parameter "0D:0" in the "Boiler" group must be set.
Measure
Insert plug
is not
aJB
Measure
Insert plug
is
aJA
.
aJA
and check parameters.
aJB
and check parameters.
aJA
Troubleshooting
93