96
Cause
Measure
Fault, maximum pressure limiter at "X3" of plug-in
adaptor 1 for external safety equipment
Check the system pressure.
Resetting the maximum pressure limiter: See chapter
"Plug-in adaptor for external safety equipment"
CA Fault message module 1, input 3: Min. pressure or max. pressure 2
Boiler cools down.
Cause
Measure
Fault, minimum pressure limiter or maximum pressure
limiter 2 at "X2" of plug-in adaptor 1 for external safety
equipment
Check the system pressure.
Resetting the minimum pressure limiter or maximum
pressure limiter 2: See chapter "Plug-in adaptor for ex-
ternal safety equipment"
CB Fault message module 1, input 4: Max. pressure 2
Boiler cools down.
Cause
Measure
Fault in additional high limit safety cut-out or tempera-
ture limiter at "X1" of plug-in adaptor 1 for external
safety equipment
Check the system temperature.
Resetting the high limit safety cut-out: See chapter
"Plug-in adaptor for external safety equipment"
CE Communication error, fault message module 1
Control mode
Cause
Measure
Communication error, plug-in adaptor 1 for external
safety equipment
Checking the plug-in adaptor: See chapter "Plug-in
adaptor for external safety equipment"
Without plug-in adaptor: Set parameter "14:0" in the
"General"
group.
CF Communication error, LON communication module
■
Control mode
■
No communication via LON
Cause
Measure
Communication error, LON communication module of
the control unit
Check LON communication module and replace if re-
quired.
If no LON communication module is installed, set pa-
rameter "76:0" in the
"General"
group.
D1 Burner fault, boiler
Boiler cools down.
Cause
Measure
Burner fault, boiler
Check the burner.
Troubleshooting
Fault messages
(cont.)
5863679
Diagnosis
Содержание Vitotronic 11 CC1E
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