MRV Communications AE182FCAKA ユーザーズマニュアル

34

Indoor unit malfunction

Display code

Float switch or water motor abnormal

E0

Outdoor unit abnormal

E1

Setting running mode is different with outdoor

running mode

E2

Liquid temperature sensor is abnormal

E3

Gas    temperature sensor is abnormal

E4

The communication between  indoor 846 chip and

communication chip is  abnormal

E5

The communication with electronic expansion  box

is abnormal

E7

The communication between the wire remote

controller and indoor unit control board is    abnormal

E8

The communication between indoor and outdoor unit

is abnormal

E9

Water temp. sensor is abnormal

EB

Outdoor unit malfunction

LED flashing times

Outdoor unit defrost temp. sensor is abnormal

flashing once

Outdoor unit environment temp. sensor is abnormal

flashing twice

Outdoor unit suction temp. sensor is abnormal

flashing 3 times

Outdoor unit discharge temp. sensor is abnormal

flashing 4times

Outdoor unit AC over-current protection

flashing 6times

Outdoor unit DC voltage is insufficient protection

flashing 7times

IPM  protection

flashing 9times

Outdoor unit EEPROM abnormal

flashing 10times

Compressor Discharge temperature overheat

protection

flashing 11times

The communication between outdoor unit 857 and

communication  chip is  abnormal

flashing 12times

Outdoor unit system over-high pressure protection

flashing 13 times

Outdoor unit malfunction display code
  (When the wire remote controller display E1,can check the indoor unit control board
LED1 or the outdoor unit control board LED1 Outdoor unit control board LED
(ALARMA or ALARMB)).