Atag ENERGION Bedienungsanleitung Seite 72

Service
Code Description
955 Water flow check error
970 Aux. pump configuration mismatch
2P2 Thermal cleanse not complete
2P3 DHW setpoint not reached in boost
2P4 Electr. heater thermos. (manual)
2P5 Electr. heater thermostat (auto)
2P7 Precirculation error
2P8 Low pressure warning
2P9 SG ready input config. err.
72 / EN
Check the connection of the flow and return temperature sensors
Check the configuration of parameter 1.2.5
Sanitisation temperature not reached in 6 h:
Check the drawing of domestic hot water during the thermal sanitisation
Check the activation of the heating element
Domestic hot water set-point temperature not reached during the boost
Check the drawing of domestic hot water during the DHW boost cycle
Check the activation of the heating element
Check the activation of the main circulation pump
Check the flow with the reading of the flow meter through parameter
Check the condition of the safety thermostat and of the cabling
Check the activation of the main circulation pump
Check the flow with the reading of the flow meter through parameter
Check the condition of the safety thermostat and of the cabling
Check the connection of the flow meter
Run an automatic deaeration cycle 1.12.0
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.
Only one of the parameters 1.1.0 or 1.1.1 is set as an SG Ready input
Resolution
cycle
cycle
13.9.3
13.9.3