Ariston NIMBUS COMPACT S NET Manual page 95

2 P5 Second thermostat of resistance (manual)
2 P6 Night tariff contact not present
2 P7 Precirculation Error
2 P9 SG ready input configuration not completed
(*) BUS power supply overload
A BUS power supply overload error may occur due to the con-
nection of three or more devices within the installed system.
Devices which may overload the BUS network include:
- Multizone module
- Solar pump assembly
- Module for instant production of domestic hot water
To avoid overloading the BUS power supply, set microswitch
1 on one of the P.C.B.s inside the equipment connected to the
system (except the Tank) to OFF, as illustrated in the figure.
EXTERNAL UNIT ERROR LIST
TDM
DESCRIPTION
ERROR
905 HP CMP Mismatch Error
906 HP FAN Mismatch Error
907 HP V4W Mismatch Error
908 HP EXV Mismatch Error
909 HP Zero Fan Speed
947 HP V4W Error
912 HP V4W Error Service
948 HP TD Error
949 HP TS Error
911 HP TE Error
952 HP TO Error
913 HP LWT Error
914 HP TR Error
916 HP TEO Error
915 HP COMM TDM Error
HP Compressor Heater
953
Mismatch
954 HP Base Panel Heater Mismatch
HP Compressor model
956
mismatch
957 HP Fan model mismatch
922 HP Freeze Error
917 HP Freeze Service
951 HP HIGH TD Error
950 HP HIGH TD Service
918 HP Pump Down Error
919 HP HIGH SDT Error
931 HP INVERTER Error
Check main circulation activation
- Check water flow by par 17.11.3
- Check safety thermostat status and wirings
- Par 17.5.2 = HP-HC or HP-HC 40°C and par. 17.1.0 = Absent
Water flow not detected for 5 times during pre-circulation
Just one of par 17.1.0 or 17.1.1 is defined as SG Ready input
(**) Table of inverter error codes
in case of an external unit error (HP 939 error code), read the
parameter 17.11.1 and refer to the following table to identify
the cause of the error.
RESET
HP
SERVICE
POWER
RESET
OFF
x
x
x
x
x
x
x
-- --
-- --
-- --
-- --
-- --
-- --
-- --
-- --
-- --
-- --
-- --
-- --
x
-- x
x
-- x
-- --
x
-- --
ON
OFF
1 2
microswitch
95 / GB