Troubleshooting
AirModule –6 720 813 268(2014/10)
55
12.9.6 Calibration menu
13
Troubleshooting
A system error is displayed on the user interface display. The cause can
be an error in the user interface, in a component, in a module, the heat
pump or the heat pump module. You can find further information in the
instructions on how to solve errors, especially in the service manual,
which contains detailed descriptions of errors, for each separate part
and unit and the installed heat pump.
The user interface saves the latest error messages with a time stamp
(
Menu Item
Description
Room temp. sen.
adj.
▶ Place a suitable precision measuring instrument
close to the user interface. The precision
measuring instrument may not give off any heat
to the user interface.
▶ Keep heat sources such as, e.g. direct sun, body
heat and the like away for a period of 1 hour.
▶ Adjust the displayed room temperature
correction value ( – 3 ...
0
... + 3 K).
Time correction This correction ( – 20 –
0
... + 20 s) is performed
automatically once every week.
Example: the clock is offset by
ca. –6 minutes per year
• –6 minutes per year –360 seconds per year
• 1 year = 52 weeks
• –360 seconds: 52 weeks
• –6.92 seconds per week
• Correction factor = +7 s/week.
Table 40 Calibration menu settings
Use only original spare parts. Any damage resulting from
use of spare parts not supplied by the manufacturer is
excluded from liability.
If an error cannot be solved, please contact your local
service technician or Bosch service.
Error
code
Sub
code Cause or error description
Test procedure/cause
Solution
A11 1000 System configuration not
confirmed
System configuration incomplete
Configure the system completely and confirm
A11 1010 No communication via BUS
connection EMS plus
Check if the BUS connection is correctly connected.
Correct the wiring and restart the user interface.
Check if the BUS connection is defect. Disconnect modules
from the EMS-BUS and restart the user interface. Check if a
module or the module wiring is causing the error.
Repair or replace the BUS wires.
Replace defect EMS-BUS unit
A11 1038 Invalid time/date
Date/time not yet set.
Set date/time.
Prolonged power outage
Set date/time.
A11 3061
3062
3063
3064
No communication with mixing
valve module
(3061 = Heating circuit 1;
3062 = Heating circuit 2;
3063 = Heating circuit 3;
3064 = Heating circuit 4)
Check configuration (set address on the module). The selected
setting requires a mixing valve module.
Modify configuration
Check if the EMS connecting wire to the mixing valve module is
damaged. BUS voltage to the mixing valve module must be
between 12 and 15 V DC.
Replace damaged cables.
Defect mixing valve module
Replace the mixing valve module
A11 3091
3092
3093
3094
Defect room temperature sensor
(3091 = Heating circuit 1;
3092 = Heating circuit 2;
3093 = Heating circuit 3;
3094 = Heating circuit 4)
Reset the heating circuit control mode from room temperature
mode to outside temperature compensated control.
Replace the system regulator or room controller.
Reset the frost protection from room to outside.
A11 6004 No communication w. solar
module
Check configuration (set address on the module). The selected
setting requires a solar module.
Modify configuration
Check if the EMS connecting wire to the solar module is
damaged. BUS voltage to the solar module must be between 12
and 15 V DC.
Replace damaged cables.
Defect solar module
Replace the module.
A31
A32
A33
A34
3021
3022
3023
3024
Defect flow temperature sensor
in the heating circuit
(A31/3021
= Heating circuit 1;
A32/3022
= Heating circuit 2;
A33/3023
= Heating circuit 3;
A34/3024
= Heating circuit 4)
Check configuration. The selected setting requires a flow
temperature sensor.
Modify configuration.
Check the connecting cable between the mixing valve module
and the flow temperature sensor.
Establish a correct connection.
Check the connecting cable according to the diagram.
Replace the sensor if the values are incorrect.
Check the flow temperature sensor connecting terminal voltage
on the mixer valve module according to the diagram.
If the sensor values are correct but the voltage is
incorrect, the mixing valve module should be
replaced.
Table 41 Error messages