Haier MRV 5 Series Troubleshooting Manual page 132

Indication on
wired controller (hex)
Indoor ambient
temp. sensor
TA failure
Indoor coil pipe
temp. sensor
TC1 failure
Indoor coil pipe
temp. sensor
TC2 failure
Dual heat
source sensor
TW failure
Indoor ambient
temp. sensor TA
(Taf) failure
Central controller display
YCZ-A004
01
YR-E17
02
YR-E17
03
YR-E17
04
YR-E17
0F
YR-E17
BMS display
HCM-05
1
1
1
2
2
3
3
4
4
15
15
129
Indoor
PCB LED
HCM-01A
1
Flash 1 times
2
Flash 2 times
3
Flash 3 times
4
Flash 4 times
15
Flash 15 times