Marlos LuxuryBlack i14 Benutzer- Und Wartungshandbuch Seite 64

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
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
EE25
to one phase or two phases.
1. Four-way valve reversal failure
2. Lack of refrigerant (no detect when
EE26
T3 or T5 malfunction)
1. Wrong EEPROM data in the
program or failed input of EEPROM
EE27
data
2. Main board failure
EE28 Main board failure
62
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
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 boar
1. Turn off electricity supply and
restart it
2. Change a new main board
wiring