Service manual

16-7
TROUBLESHOOTING > GC 24
SM HADDCI 1-A.2 GB
No Fault Name 54321
1 RT-1 is disconnected 00001
2 RT-1 is shorted 00010
3 RT-2 is disconnected 00011
4 RT-2 is shorted 00100
… Reserved 00101
7 Communication mismatch 00111
8 No Communication 01000
9 No Encoder 01001
10 Reserved 01010
11 Outdoor Unit Fault 01011
… Reserved
17 Defrost protection 10001
18 Deicing Protection 10010
19 Outdoor Unit Protection 10011
20 Indoor Coil HP Protection 10100
21 Overflow Protection 10101
… Reserved
24 EEPROM Not Updated 11000
25 Bad EEPROM 11001
26 Bad Communication 11010
27 Using EEPROM data 11011
28 Model A 11100
29 Model B 11101
30 Model C 11110
31 Model D 11111
1 - ON, 0 - OFF
Only one code is shown. Order of priority is lower to the higher number. Diagnostics is continuously
ON as long power is on.
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