12-4
TROUBLESHOOTING
SM DUO38I 1-A.2 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
