Service manual

13-5
TROUBLESHOOTING
SM CINCO 1-A.1 GB
№
Problem AO 54321
1 OCT is shorted/disconnected Yes 00001
2 CTT is shorted/disconnected Yes 00010
3 HST is shorted/disconnected Yes 00011
4 OAT is shorted/disconnected Yes 00100
5 OMT is shorted/disconnected Yes 00101
6 RGT is shorted/disconnected Yes 00110
7 RLT is shorted/disconnected Yes 00111
8 High pressure protection Yes 01000
9 Low pressure protection Yes 01001
10 No communication to Driver Yes 01010
11
Compressor IPM Fault / IPM Driver Pin / Compressor Current
Sensor Fault
Yes01011
12 Bad EEPROM No 01100
13 DC under voltage Yes 01101
14 DC over voltage Yes 01110
15 AC under voltage/AC over Voltage/Zero Crossing detection Yes 01111
16 Mismatch between IDU & ODU models Yes 10000
17 No Communication Yes 10001
18 System Over Power Yes 10010
19 PFC Current sensor Yes 10011
20 Heat sink Over Heating No 10100
21 Deicing No 10101
22 Compressor Over Heating No 10110
23 Compressor Over Current No 10111
24 No OFAN Feedback (Both OFAN_UP or OFAN_DN) Yes 11000
25 OFAN IPM fault / OFAN IPM Driver Pin Yes 11001
26 Compressor Lock Yes 11010
27 Bad Communication No 1101 1
28 Missing ODU configuration Yes 11100
29 Undefined ODU Model Yes 11101
30 Outdoor/Indoor Coil Overheating No 11110
31 Operation conditions are exceeded Yes 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.