Accorroni COLONNA CLN130R, Service Manual

Page: 71 / 132

 Troubleshooting 4 
2.
2.1
These error codes are described in the following tables:
Display Error Information Solution
F
Defrost --
SC
Self clean --
FP
Heating in room temperature under 8°C --
EH 00/EH 0A
Indoor unit EEPROM parameter error TS01-IDU
EL 01
Indoor/outdoor unit communication error TS02-L-INV
EH 03
The indoor fan speed is operating outside of the normal range TS04-L-IDU
EC 50
Outdoor temperature sensor is in open circuit or has short circuited TS05-ODU
EC 51
Outdoor unit EEPROM parameter error TS01-ODU
EC 52
Condenser coil temperature sensor T3 is in open circuit or has short
circuited
TS05-ODU
EC 53
Outdoor room temperature sensor T4 is in open circuit or has short
circuited
TS05-ODU
EC 54
Compressor discharge temperature sensor TP is in open circuit or has
short circuited
TS05-ODU
EC 55
IGBT temperature sensor TH is in open circuit or has short circuited TS05-ODU
EC 56
Evaporator coil outlet temperature sensor T2B is in open circuit or has
short circuited(for free-match outdoor units)
TS05-ODU
EC 05
Open circuit or short circuit of outdoor temperature sensor or outdoor
unit EEPROM parameter error
TS05-L-ODU
EH 60
Indoor room temperature sensor T1 is in open circuit or has short
circuited
TS05-IDU
EH 61
Evaporator coil middle temperature sensor T2 is in open circuit or has
short circuited
TS05-IDU
EC 07
The outdoor fan speed is operating outside of the normal range TS04-ODU
EH 0
Indoor PCB/Display board communication error TS07
EL 0C
Refrigerant leakage detection TS06-INV