31
9.2 Diagnosis and Solution
9.2.1 E0(EEPROM parameter error) error diagnosis and solution
9.2.2 E1(indoor / outdoor units communication protection) error diagnosis and solution
The power supply for
outdoor PCB is fail.
Check the wiring on
outdoor PCB comparing
with wiring plate. Is the
connection good?
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
again
Is the LED4 (red) on
outdoor PCB bright and
LED1(yellow) blinking?
Replace outdoor e-box.
Yes
Correct the connection.
Yes
No
Replace
indoor
PCB and repower
on. Is the failure
cleared?
No
Yes
Circuit or software error on indoor PCB
Replace indoor PCB
Содержание 38LUVH055N
Страница 9: ...6 4 Refrigerant cycle diagram...
Страница 10: ...7 5 Wiring diagram 5 1 Indoor Unit 42LUVH055N 42LUVH065N 42LUVH075N...
Страница 11: ...8 5 2 Outdoor Unit 38LUVH055N 38LUVH065N 38LUVH075N...
Страница 33: ...30...