Airwell PNXA 12 DCI, Service Manual

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TROUBLESHOOTING
SM PNXADCI 1-A.1 GB
13-5
No Problem 5 4 3 2 1
11 IPM Fault
0 1 0 1 1
12 Bad EEPROM
0 1 1 0 0
13 DC under voltage
0 1 1 0 1
14
DC over voltage 0 1 1 1 0
15
AC under voltage
0 1 1 1 1
16 Indoor / Outdoor unit Communication
mismatch
1 0 0 0 0
17
No Communication
1 0 0 0 1
18 Reserved
1 0 0 1 0
20 Heat sink Over Heating
1 0 1 0 0
21 Deicing
1 0 1 0 1
22 Compressor Over Heating
1 0 1 1 0
23 Compressor Over Current
1 0 1 1 1
24 No OFAN Feedback
1 1 0 0 0
25 OFAN locked
1 1 0 0 1
26 Compressor Lock
1 1 0 1 0
27 Bad Communication
1 1 0 1 1
For YBD 018/22/24
No Problem 5 4 3 2 1
1 OCT is shorted/disconnected
0 0 0 0 1
2 CTT is shorted/disconnected
0 0 0 1 0
3 HST is shorted/disconnected
0 0 0 1 1
4 OAT is shorted/disconnected
0 0 1 0 0
5 OMT is shorted/disconnected
0 0 1 0 1
6 RGT is shorted/disconnected
0 0 1 1 0
7 RLT is shorted/disconnected
0 0 1 1 1
8 Reserved
0 1 0 0 0
9 Reserved
0 1 0 0 1
10 Reserved
0 1 0 1 0
11 Compressor IPM Fault / IPM Driver Pin /
Compressor Current Sensor Fault
0 1 0 1 1
12 Bad EEPROM
0 1 1 0 0
13 DC under voltage
0 1 1 0 1
14 DC over voltage
0 1 1 1 0
15 AC under voltage/AC over Voltage/
Zero Crossing detection
0 1 1 1 1
16 Mismatch between IDU & ODU models
1 0 0 0 0
17 No Communication
1 0 0 0 1
18 System Over Power
1 0 0 1 0
19 PFC Current sensor
1 0 0 1 1
20 Heat sink Over Heating
1 0 1 0 0
21 Deicing
1 0 1 0 1
22 Compressor Over Heating
1 0 1 1 0
23 Compressor Over Current
1 0 1 1 1
24 No OFAN Feedback
1 1 0 0 0
25 OFAN IPM fault / OFAN IPM Driver Pin
1 1 0 0 1
26 Compressor Lock
1 1 0 1 0