Haier AC18CS1ERA - Page 388

386
Super Match
Error code for Outdoor unit(3U 4U 5U) conneting RAC Wall mounted indoor unit
Outdoor
LED
display
Error code discription Wall mounted indoor display
1 Faulty of outdoor unit EEPROM
F12
2 IPM overcurrent or short circuit
F1
4
Communication failure between Module and
ECU
F3
5 Module operated overload
F20
6 Module low or high voltage
F19
8
Discharging temperature overheating.Lack
of refrigerant, ambient temperature too high
or PMVs blocked.
F4
9 Malfunction of the DC fan motor
F8
10 Malfunction of defrosting temp. sensor
F21
11
Malfunction of compressor suction temp.
sensor
F7
12 Malfunction of ambient temp. sensor
F6
13
Malfunction of compressor discharge temp.
sensor
F25
15
Communication failure between
indoor&outdoor unit
E7
16 Lack of refrigerant or discharging
F13
17 4-way valve switching failure
F14
18 Loss of synchronism detection
F11
20 Indoor thermal overload
E9
21 Indoor frosted
E5
23 Module thermal overload
F5
24 Compressor start failure
F2
25 Module input overcurrent
F23
26 MCU reset
F9
27 Module current detect circuit malfunction
F24
28
Malfunction of liquid pipe temp. sensor for
indoor unit A
F10
29
Malfunction of liquid pipe temp. sensor for
indoor unit B
F16
30
Malfunction of liquid pipe temp. sensor for
indoor unit C
F17
31
Malfunction of liquid pipe temp. sensor for
indoor unit D
F18