13-7
TROUBLESHOOTING
SM PNXDCI 1-A.1 GB
13.1.5 Outdoor
Unit
Diagnosits
No
Problem
5
4
3
2
1
1
OCT is disconnected
0
0
0
0
1
2
OCT is shorted
0
0
0
1
0
3
CTT is disconnected
0
0
0
1
1
4
CTT is shorted
0
0
1
0
0
5
HST is disconnected (when enabled)
0
0
1
0
1
6
HST is shorted (when enabled)
0
0
1
1
0
7
OAT is disconnected (when enabled)
0
0
1
1
1
8
OAT is shorted (when enabled)
0
1
0
0
0
9
TSUC is disconnected (when enabled)
0
1
0
0
1
10 TSUC is shorted (when enabled)
0
1
0
1
0
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
13.1.5.1
Outdoor Unit Diagnostics and Corrective Actions
No
Fault
Probable Cause
Corrective Action
1
Sensors failures of all
types
Check sensors connec-
tions or replace sensors.
2
IPM Fault
Electronics HW prob-
lem
Check all wiring and
jumper settings, if OK,
replace electronics.
3
Bad EEPROM
No action, unless special
parameters are required
for unit operation.
4
DC under/over Voltage
Electronics HW prob-
lem
Check outdoor unit pow-
er supply voltage
5
AC under Voltage
Check outdoor unit pow-
er supply voltage
6
Indoor / Outdoor unit
Communication mis-
match
Indoor and Outdoor
controllers are with
different versions
Replace Indoor controller
7
No Communication
Communication or
grounding wiring is not
good.
Check Indoor to Outdoor
wiring and grounding
8
Compressor Lock
Switch unit to STBY and
restart
9
Bad Communication
Communication quality is
low reliability
Check Indoor to Outdoor
wiring and grounding
CONTENTS
Содержание PNX 12 DCI
Страница 16: ...4 3 OUTLINE DIMENSIONS SM PNXDCI 1 A 1 GB 4 5 Outdoor Unit GC 24 Z DCI CONTENTS...
Страница 108: ...14 4 EXPLODED VIEWS AND SPARE PARTS LISTS SM PNXDCI 1 A 1 GB 14 4 Outdoor Unit GC 9 12 DCI CONTENTS...
Страница 110: ...14 6 EXPLODED VIEWS AND SPARE PARTS LISTS SM PNXDCI 1 A 1 GB 14 6 Indoor Unit PNX 18 21 24 DCI CONTENTS...
Страница 114: ...14 10 EXPLODED VIEWS AND SPARE PARTS LISTS SM PNXDCI 1 A 1 GB 14 10 Outdoor Unit GC 18 DCI CONTENTS...
Страница 116: ...14 12 EXPLODED VIEWS AND SPARE PARTS LISTS SM PNXDCI 1 A 1 GB 14 12 Outdoor Unit GC 21 DCI CONTENTS...
Страница 118: ...14 14 EXPLODED VIEWS AND SPARE PARTS LISTS SM PNXDCI 1 A 1 GB 14 14 Outdoor Unit GC 24 Z DCI CONTENTS...
Страница 121: ...16 1 APPENDIX A SM PNXDCI 1 A 1 GB APPENDIX A INSTALLATION AND OPERATION MANUALS CONTENTS...
