Haier AD50S2SM1FA - Page 234

231
Outdoor unit Trouble shooting
Outdoor
LED
display
Fault possible
reasons
Wired controller
display(Hex-
YR-E17)---for
duct/cassette
Wired controller
display(Decimal-
YR-E16/YR-
E16A)---for duct/
cassette
Panel
display(Hex)--
-for round way
cassette
Round way cassette---
indoor display outdoor
error code use the timer
and running lamp OR I.D.
PCB LED
Compact design 4-way
cassette/Convertible unit/
Duct unit--- indoor display
outdoor error code use the
timer and running lamp
OR I.D. PCB LED
Wall
mounted
indoor
display
Outdoor unit(3U 4U
5U)
Timer lamp
ash
time(I.D.
PCBLED5)
Running
lamp
ash
time(I.D.
PCBLED1)
Timer lamp
ash
time(I.D.
PCBLED4)
Running
lamp
ash
time(I.D.
PCBLED3)
1
Faulty of outdoor
unit EEPROM
15 21 15 2 1 2 1 F12
2
IPM overcurrent or
short circuit
16 22 16 2 2 2 2 F1
4
Communication
failure between
Module and ECU
18 24 18 2 4 2 4 F3
5
Module operated
overload
19 25 19 2 5 2 5 F20
6
Module low or high
voltage
1A 26 1A 2 6 2 6 F19
8
"Discharging
temperature
overheating.Lack of
refrigerant,
ambient
temperature too
high or PMVs
blocked."
1C 28 1C 2 8 2 8 F4
9
Malfunction of the
DC fan motor
1D 29 1D 2 9 2 9 F8
10
Malfunction of
defrosting temp.
sensor
1E 30 1E 3 0 3 0 F21
11
Malfunction of
compressor suction
temp. sensor
1F 31 1F 3 1 3 1 F7
12
Malfunction of
ambient temp.
sensor
20 32 20 3 2 3 2 F6
13
Malfunction of
compressor
discharge temp.
sensor
21 33 21 3 3 3 3 F25
15
Communication
failure between
indoor&outdoor unit
23 35 23 3 5 3 5 E7
17
4-way valve
switching failure
25 37 25 3 7 3 7 F14
18
Loss of
synchronism
detection
26 38 26 3 8 3 8 F11
20
Indoor thermal
overload
28 40 28 4 0 4 0 E9
23
Module thermal
overload
2B 43 2B 4 3 4 3 F5
24
Compressor start
failure
2C 44 2C 4 4 4 4 F2
25
Module input
overcurrent
2D 45 2D 4 5 4 5 F23