User Manual

Commissioning
30 / EN
4.2 Error list
The errors are displayed on the interface in the indoor unit (see paragraph "System interface SENSYS HD").
Indoor unit errors
Code Description Resolution
114 Outside temperature not available Temperature control activation based on the external sensor
External sensor not connected or damaged. Check the sensor’s connection
and replace it, if necessary.
730 Buffer high probe error Buffer filling inhibited. Check the hydraulic diagram.
Buffer sensor not connected or damaged. Check the sensor’s connection and
replace it, if necessary.
731 Buffer overtemperature Buffer filling inhibited. Check the hydraulic diagram.
Buffer sensor not connected or damaged. Check the sensor’s connection and
replace it, if necessary.
732 Buffer low probe error Buffer filling inhibited. Check the hydraulic diagram.
Buffer sensor not connected or damaged. Check the sensor’s connection and
replace it, if necessary.
902 System flow sensor damaged Delivery sensor not connected or defective. Check the sensor’s connection
and replace it, if necessary.
921 Error Electricity/Gas cost ratio Verify the configuration of parameters 1.13.0 and 1.13.1
923 Heating circuit pressure error Check for any water leakages in the hydraulic circuit
Faulty pressure switch
Defective cabling of the pressure switch. Check the connection of the pres-
sure switch and replace it, if necessary.
924 HP communication error Check the cabling between the TDM board and the Energy Manager
925 Boiler not present Check the cabling between the boiler board and the Energy Manager
927 AUX inputs correspondence error Verify the configuration of parameters 1.1.3 and 1.1.4
928 External lockout configuration mis-
match
Verify the configuration of parameters 1.1.5 and 20.0.0
933 Flow sensor overtemperature Check the flow in the primary circuit. Delivery sensor not connected or defec-
tive. Check the sensor’s connection and replace it, if necessary.
934 DHW tank sensor damaged Calorifier sensor not connected or defective. Check the sensor’s connection
and replace it, if necessary.
935 Tank overtemperature Check whether the 3-way valve is locked in the DHW position. Check the
connection of the calorifier’s sensor and replace it, if necessary.
937 No circulation error Check that the main circuit has activated
938 Anode fault Check the connection of the anode
Check whether there is any water in the indirect cylinder
Check the condition of the anode
Check the configuration of parameter 1.2.6
940 Hydraulic scheme not defined Hydraulic diagram not selected through parameter 1.1.0
955 Water flow check error Check the connection of the flow and return temperature sensors
970 Aux. pump configuration mismatch Check the configuration of parameter 1.2.5
2P2 Thermal cleanse not complete Sanitisation temperature not reached in 6 h:
Check the drawing of domestic hot water during the thermal sanitisation
cycle
Check whether the auxiliary generator starts up
2P7 Precirculation error Check the connection of the flow meter
Run an automatic deaeration cycle 1.12.0
2P8 Low pressure warning Check for any water leakages in the hydraulic circuit
Faulty pressure switch
Defective cabling of the pressure switch. Check the connection of the pres-
sure switch and replace it, if necessary.
2P9 SG ready input config. err. Only one of the parameters 1.1.0 or 1.1.1 is set as an SG Ready input