Control unit faults
1.
Find current fault with
c
.
2.
Select additional fault codes
with
a
and
b
.
3. Acknowledge fault.
The fault can be acknowledged
with
d
. The fault message in the
display will be hidden, but red fault
indicator
A
continues to flash. A
new fault message will be shown in
the display if an acknowledged fault
is not removed by 07:00 h the fol-
lowing day.
Fault on the burner control unit
1.
Find current fault with
c
.
2.
Select additional fault codes
with
a
and
b
.
3. Acknowledge fault.
The fault can be acknowledged
with
d
. The fault message in the
display will be hidden, but red fault
indicator
A
continues to flash. A
new fault message will be shown in
the display if an acknowledged fault
is not removed by 07:00 h the fol-
lowing day.
Call up current fault codes
(cont.)
74
Troubleshooting
56
92
550
GB
Summary of Contents for VITODENS 300 WB3A
Page 10: ...Opening the control unit housing 10 5862 570 GB...
Page 14: ...Closing control unit housing and inserting user interface 14 5862 570 GB...
Page 129: ...Parts lists cont 113 Parts lists 5692 550 GB...
Page 130: ...Parts lists cont 114 Parts lists 5692 550 GB...
Page 131: ...Parts lists cont 115 Parts lists 5692 550 GB...
Page 132: ...Parts lists cont 116 Parts lists 5692 550 GB...
Page 133: ...Parts lists cont 117 Parts lists 5692 550 GB...
Page 145: ...129 5692 550 GB...
Page 146: ...130 5692 550 GB...
Page 147: ...131 5692 550 GB...
