Astralpool PRO ELYO INVERBOOST NN Serie Manual Del Usuario página 49

Malfunction
Software control
exception
Current detection
circuit failure
Compressor start
failure
Ambient Temperature
device failure on Driver
board
Compressor phase
failure
Four-way valve
reversal failure
EEPROM data read
malfunction
The inter-chip
communication failure
on the main control
board
8. Troubleshooting
8. 8. Troubleshooting Troubleshooting
Error code
1.Compressor runs out of step
2. Wrong program
EE21
3. Impurity inside compressor causes
the unstable rotate speed
1. Voltage signal abnormal
EE22
2. Driver board is damaged
1. Main board is damaged
2. Compressor wiring error or poor
contact or unconnected
EE23
3. Liquid accumulation inside
4. Wrong phase connection for
compressor
EE24 Ambient Temperature device failure
Compressors U, V, W are connected to
EE25
one phase or two phases.
1. Four-way valve reversal failure
EE26 2. Lack of refrigerant (no detect when
T3-TH2 or T5-TH1 malfunction)
1. Wrong EEPROM data in the program
EE27 or failed input of EEPROM data
2. Main board failure
EE28 Main board failure
Reason
- 45 -
Solution
1. Check the main board or
change a new one
2. Enter correct program
1. Check the main board or
change a new one
2. Change a new driver board
1. Check the main board or
change a new one
2. Check the compressor wiring
according to the circuit diagram
Check the compressor or change
a new one
Change driver board or main
board
Check the actual wiring
according to the circuit diagram
1. Switch to Cooling mode to
check the 4-way valve if it has
been reversed correctly
2. Change a new 4-way valve
3. Fill with gas
1. Re-enter correct EEPROM
data
2. Change a new main board
1. Turn off electricity supply and
restart it
2. Change a new main board