Midea M2OC-14HRDN1, Техническое и сервисное руководство

Страница: 27 / 36

ODMI-1103-A
8.3Trouble shooting
8.3.1 EEPROM parameter error diagnosis and solution
8.3.2 Indoor / outdoor units communication protection(Only for M5OA-36HRDN1-Q model)
Shut off the power supply and turn on it 5s later
The problem comes out again
Is the EEPROM chip plugged in PCB well?
No
Correct the connection
Replace the PCB
Disconnect the power supply, after 1
minute, connect the power supply , turn on
the unit with remote controller
Does the unit work
normally ?
Check the wiring between
indoor and outdoor unit. Is
the connection of L, N, S
and GND good?
Is the GND connection on
outdoor PCB good?
No
No
Reconnect and retest
in
Is the LED4(red) on
outdoor PCB bright and
LED1(yellow) blinking?
Replace outdoor e-box.
Yes
Yes
The power supply for
outdoor PCB is fail. Check
the wiring on outdoor PCB
comparing with wiring plate.
Is the connection good?
No
Correct the connection
.
Yes
No
Replace indoor PCB
and repower on. Is
the failure cleared?
No