The most recent 10 faults are saved and may be called up.
1.
Press
G
and
d
simultaneously
for approx. 2 seconds.
2.
Call up the individual fault codes
with
a
or
b
.
Fault code order
Fault code
1
.
.
.
10
most recent
.
.
.
10th from most
recent
All saved fault codes can be
deleted with
e
.
3.
Press
d
.
Call up current fault codes
Red fault indicator
U
flashes for all
faults.
"Fault" flashes in the programming
unit display when a fault message is
issued.
A fault in the burner control unit
causes the display to flash
E
.
Calling up fault code history
73
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...