Constant temperature control units
Note
The fault can be acknowledged
with
d
. The fault message in the dis-
play will be hidden, but the red fault
indicator
U
continues to flash. A new
fault message will be displayed if an
acknowledged fault is not removed by
the following morning.
Calling up acknowledged fault mes-
sages
Press
d
for approx. 2 seconds;
select the acknowledged fault with
a
or
b
.
Displayed
fault code
Const.
Weat-
her-
comp.
System
character-
istics
Cause
Remedy
0F
X
X
Control
mode
Maintenance
Carry out
maintenance.
Set code 24:0
after mainte-
nance
10
X
X
Controls
according
to 0 °C out-
side tem-
perature
Outside tempera-
ture sensor shorted
out
Check the
outside tem-
perature sen-
sor (see
page 85)
18
X
X
Outside tempera-
ture sensor lead
break
20
X
X
Controls
without
flow tem-
perature
sensor
(low loss
header)
System flow tem-
perature sensor
shorted out
Check the
low loss
header sen-
sor (see
page 87)
28
X
X
System flow tem-
perature sensor
lead break
Checking and acknowledging faults
(cont.)
76
Troubleshooting
56
92
550
GB
Содержание VITODENS 300 WB3A
Страница 10: ...Opening the control unit housing 10 5862 570 GB...
Страница 14: ...Closing control unit housing and inserting user interface 14 5862 570 GB...
Страница 122: ...Temperature profile Factory set code F1 6 to F1 15 Control functions cont 106 Function description 5692 550 GB...
Страница 125: ...A1 Main PCB A2 Mains supply unit Connection and wiring diagrams external connections 109 Designs 5692 550 GB...
Страница 129: ...Parts lists cont 113 Parts lists 5692 550 GB...
Страница 130: ...Parts lists cont 114 Parts lists 5692 550 GB...
Страница 131: ...Parts lists cont 115 Parts lists 5692 550 GB...
Страница 132: ...Parts lists cont 116 Parts lists 5692 550 GB...
Страница 133: ...Parts lists cont 117 Parts lists 5692 550 GB...
Страница 145: ...129 5692 550 GB...
Страница 146: ...130 5692 550 GB...
Страница 147: ...131 5692 550 GB...