ENGLISH-52
Display
Explanation
Error Source
901
Water inlet (PHE) temperature sensor error(open/short)
Hydro Unit
902
Water outlet (PHE) temperature sensor error(open/short)
Hydro Unit
903
Water outlet (backup heater) temperature sensor error
Hydro Unit
904
DHW tank temperature sensor error
Hydro Unit
906
Refrigerant gas inlet (PHE) temperature sensor (open/short)
Outdoor Unit
911
Low flow rate error
• in case of low flow rate in 30 sec during water pump signals is
ON(Starting)
• in case of low flow rate in 15 sec during water pump signals is ON(After
starting)
Hydro Unit
912
Normal flow rate error
• in case of normal flow rate in 10min during water pump signal is OFF
Hydro Unit
916
Mixing valve sensor error
Hydro Unit
919
Error that the set temperature for disinfection operation is not reached, or,
after reaching, the temperature fails to continue for the requested time
Hydro Unit
Error codes