6 720 820 872 (2016/12)
CR 400 | CW 400 | CW 800
Troubleshooting | 51
A11
A61
A62
A63
A64
A65
A66
A67
A68
1037 Outdoor temperature sensor
faulty,
heating standby mode active
(A61 = Heating circuit 1;
A62 = Heating circuit 2;
A63 = Heating circuit 3;
A64 = Heating circuit 4;
A65 = Heating circuit 5;
A66 = Heating circuit 6;
A67 = Heating circuit 7;
A68 = heating circuit 8)
Check configuration. The selected setting
requires an outside temperature sensor.
If an outside temperature sensor is
not desired. Select the room
temperature-dependent
configuration in the controller.
Check the connecting lead between the
control unit and outside temperature sensor
for continuity
If there is no continuity, rectify the
fault
Check the electrical connection of the
connecting lead in the outside temperature
sensor or on the plug in the control unit
Clean corroded terminals in the
outside sensor housing.
Check outside temperature sensor according
to table
If values do not match, replace the
sensor
Check the voltage at the terminals of the
outside temperature sensor in the control unit
according to table
If the sensor values matched, but
the voltage values do not match,
replace the control unit
A11
1038 Invalid time/date
Date/time not yet set
Set date/time
Prolonged loss of power supply
Avoid voltage failures
A11
3061
3062
3063
3064
3065
3066
3067
3068
No communication with
heating circuit module
(3061 = Heating circuit 1;
3062 = Heating circuit 2;
3063 = Heating circuit 3;
3064 = Heating circuit 4
;
3065 = Heating circuit 5;
3066 = Heating circuit 6;
3067 = Heating circuit 7;
3068 = heating circuit 8)
Check configuration (set address at the
module). The selected setting requires a
heating circuit module
Change configuration
Check the EMS connecting lead to the heating
circuit module for damage. BUS voltage at the
heating circuit module must be between 12-
15 V DC.
Replace damaged cables
Heating circuit module defective
Replace heating circuit module
A11
3091
3092
3093
3094
3095
3096
3097
3098
Room temperature sensor
faulty
(3091 = Heating circuit 1;
3092 = Heating circuit 2;
3093 = Heating circuit 3;
3094 = Heating circuit 4
;
3095 = Heating circuit 5;
3096 = Heating circuit 6;
3097 = Heating circuit 7;
3098 = heating circuit 8)
Install C 400/C 800 in the living space (not at
the heat source (boiler))
or
Replace the system controller or
the remote control.
Change the control type of the heating circuit
from room temperature-dependent to
weather-compensated
Change frost protection from room
temperature-dependent to outside
temperature-dependent, if necessary
A11
6004 No communication w. solar
module
Check configuration (set address at the
module). The selected setting requires a solar
module
Change configuration
Check the EMS connecting lead to the solar
module for damage. BUS voltage at the solar
module must be between 12-15 V DC.
Replace damaged cables
Solar module defective
Replace the module
Fault code
Sub-code Cause or fault description
Test procedure / Cause
Action
Table 25 Fault displays
Summary of Contents for CR 400
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