Service manual

12-4
TROUBLESHOOTING
SM DUO38 1-E.1 GB
1.3.3 MSMP Fault Code for Indoor unit:
No Problem 5 4 3 2 1
1
RT-1 is disconnected 0 0 0 0 1
2
RT-1 is shorted 0 0 0 1 0
3
RT-2 is disconnected 0 0 0 1 1
4
RT-2 is shorted 0 0 1 0 0
5
RGT is disconnected 0 0 1 0 1
6
Reserved 0 0 1 1 0
7
Communication mismatch 0 0 1 1 1
8
No Communication 0 1 0 0 0
9
No Encoder 0 1 0 0 1
10
Reserved 0 1 0 1 0
11
Outdoor unit fault 0 1 0 1 1
12
Reserved 0 1 1 0 0
13
Reserved. 0 1 1 0 1
14
Reserved 0 1 1 1 0
15
Reserved 0 1 1 1 1
17
Defrost protection 1 0 0 0 1
18
Deicing Protection 1 0 0 1 0
19
Outdoor Unit Protection 1 0 0 1 1
20
Indoor Coil HP Protection 1 0 1 0 0
21
Overflow Protection 1 0 1 0 1
22
Reserved 1 0 1 1 0
23
Reserved 1 0 1 1 1
24
EEPROM Not Updated 1 1 0 0 0
25
Bad EEPROM 1 1 0 0 1
26
Bad Communication 1 1 0 1 0
27
Using EEPROM data 1 1 0 1 1
29 No Fault (Heat Mode)
1 1 1 0 1
30 No Fault (Cool, Dry, Fan Mode)
1 1 1 1 0
31 No Fault (Stand By)
1 1 1 1 1
CONTENT