Error Display - Ferroli ASTER User Manual

ERROR DISPLAY

In case of errors during the unit operation, this condition will be displayed with a code identifying the system number
that triggered the error. Use the table below to understand the error codes.
Error
code
b0 Oil return procedure in cooling mode
b1 Protection from cold air introduction in heating mode
b2 Refrigerant recovery procedure
CL Filter cleaning signal
d0 Compressor frequency reduction for compressor over absorption
d1 Compressor frequency reduction for unit over absorption
d2 Compressor frequency reduction for high drain temperature
d3 Compressor frequency reduction for frost risk on the internal exchanger
d4 Compressor frequency reduction for unit overload
d5 Compressor frequency reduction for IPM overload
dF Defrost procedure or oil return in heating mode
E0 Compressor drain temperature protection
E1 General overheating protection
E2 Compressor overheating protection
E3 Internal exchanger anti-freeze protection
E7 Error on 4-way valve
E8 Protection for abnormal external temperature
H0 Compressor blocked
H1 Compressor start error
H2 Over absorption protection on one compressor phase
H3 Compressor over absorption protection
H4 IPM module protection
H5 IPM module overheating
H6 Protection for current reading circuit to compressor error
H7 Error for compressor phase loss
H8 Error on the external fan motor
H9 Protection for current reading circuit to external fan motor error
HE Auxiliary heater error
L0 Indoor unit board jumper replacement error
L1 Fault on the internal fan status reading circuit
L2 Error on the external fan motor
L3 Display of the communication error between Indoor and Outdoor unit
L4 Communication port error
L5 Indoor unit EEPROM memory module error
L6 Display of the communication error between Indoor and Outdoor unit
LL Test procedure
P0 Outdoor unit EEPROM memory module error
P1 Start error/electric charge circuit error
P2 Protection for abnormal power voltage
P3 Protection for too high supply voltage threshold
P4 Protection for too low supply voltage threshold
P5 Protection for direct-current voltage drop
P6 Unit overall current measuring circuit error
P7 Overcurrent protection
P8 Current measuring circuit error on PFC module
P9 PFC module protection
PC Incompatible modes
U0 Internal air sensor fault
U1 Internal exchanger sensor fault
U2 External air sensor fault
U3 External exchanger sensor fault
U4 Cooling sensor 1 fault
U5 IPM module sensor fault
U6 Cooling sensor 2 fault
U7 External exchanger sensor fault
U8 Compressor drain sensor fault
In case of faults, contact the Assistance centre and provide the relevant code.
SETTING AND WORK
Description
Shown on the indoor unit
display if:
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
Applies to:
Error
position
outdoor o
indoor o
indoor o
indoor o
outdoor o
outdoor o
outdoor o
outdoor o
outdoor o
outdoor o
indoor o
outdoor o
outdoor o
outdoor o
outdoor o
outdoor o
outdoor o
outdoor o
outdoor o
outdoor o
outdoor o
outdoor o
outdoor o
outdoor o
outdoor o
outdoor o
outdoor o
indoor o
indoor o
indoor o
indoor o
indoor o
indoor o
indoor o
outdoor o
indoor o
outdoor o
outdoor o
outdoor o
outdoor o
outdoor o
outdoor o
outdoor o
outdoor o
outdoor o
outdoor o
outdoor o
indoor o
indoor o
outdoor o
outdoor o
outdoor o
outdoor o
outdoor o
outdoor o
outdoor o
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