28
Troubleshooting
Diagnosis using the control unit
(cont.)
Fault message
Display System characteristics
Control
unit for
Control unit for weather-
compensated mode with
p y
Burner
fault,
d
constant
temp.
mode
standard
programming
unit
Comfortrol
programming
unit
red
1ĂăĂ5
U
:5:ă0
FAULT:
DHW CYLINDER
OFF
Domestic hot water
cylinder cools down
ăĂăĂ5
U
:5:ă8
DHW CYLINDER
TEMPERATURE
SENSOR
cylinder cools down
1ĂăĂ6
U
:6:ă0
ćć
OFF
Boiler cools down
ăĂăĂ6
U
:6:ă8
1ĂăĂ6
U
:6:ă1
ćć
OFF/ON Boiler cools down
ăĂăĂ6
U
:6:ă9
1ĂăĂ7
ćć
ćć
OFF
No heating
ăĂăĂ7
ćć
U
:7:ă0
FAULT: 70
OFF
Activation after
20Ă
º
C daytime set value,
14Ă
º
C night set value.
ćć
U
:7:ă8
FAULT: 78
OFF
Activation after
20Ă
º
C daytime set value,
14Ă
º
C night set value.
AĂăĂ1
U
:A:ă1
FAULT: A1
Flashing Boiler operates in
emergency mode (after
30Ăminutes BUS fault)
OFF
Boiler cools down
ćć
U
:A:ă2
FAULT: A2
OFF
ćć
5692Ă485
G
B
Summary of Contents for Vitodens 200
Page 25: ...25 Initial start up inspection and maintenance 5692Ă485 GB ...
Page 96: ...96 Control unit for weather compensated mode with Comfortrol prog unit 5692Ă485 GB ...
Page 99: ...101 5692Ă485ĂGB ...
Page 105: ...109 Appendix Maint service Maint service Maint service Maint service 5692Ă485ĂGB ...
Page 107: ...111 Appendix Maint service Maint service Maint service Maint service 5692Ă485ĂGB ...
Page 109: ...113 Appendix Maint service Maint service Maint service Maint service 5692Ă485ĂGB ...