Error code
E01
E02
E03
E04
E05
E06
E07
E08
E09
E20
E21
E22
E23
E24
E25
E26
E27
Override code
OR01
OR02
OR03
OR04
OR05
OR06
OR07
OR08
OR09
OR10
OR11
OR12
OR13
EN - 36
Error description
E01 inlet water temperature sensor faulty
E02 outlet water temperature sensor faulty
E03 DHW temperature sensor faulty
E04 external air temperature sensor faulty
E05 main exchanger antifreeze protection
E6 water flow switch error
E07 UE communication error
E08 disinfection function failed
E09 RS485 communication error
E20 DHW circuit flow switch error
E21 DHW evaporator antifreeze protection
E22 DHW compressor overheating
E23 DHW compressor temperature sensor faulty
E24 DHW condenser temperature sensor faulty
E25 DHW evaporator temperature sensor faulty
E26 solar temperature sensor faulty
E27 display communication error
Override description
inlet water temperature low
evaporator antifreeze protection
external boiler activation request
TA input open
UE capacity limitation
UE defrosting cycle
UE not available in DHW_B
DHW flow switch protection
DHW evaporator antifreeze protection
DHW compressor temperature protection
water pump maintenance
water filter maintenance
DHW pump maintenance