Troubleshooting by Indication on the Remote Controller
Troubleshooting
187
3.39
“
LC
”
Outdoor Unit:
Malfunction of Transmission between
Inverter and Control PC Board
Remote
Controller
Display
LC
Applicable
Models
U-4..6ML5DPQ, U-4..6ML5XPQ
Method of
Malfunction
Detection
Check the communication state between inverter PC board and control PC board by micro-
computer.
Malfunction
Decision
Conditions
When the correct communication is not conducted in certain period.
Supposed
Causes
Malfunction of connection between the inverter microcomputer and outdoor control
microcomputer
Defect of outdoor unit PC board (A1P)
External factor (Noise etc.)
Troubleshooting
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Are the
connectors of the
inverter PC board and the
control PC board
securely
connected?
Replace the inverter PC board
(A2P) or the control PC board
(A1P).
Table 1: Combination of PC boards
Connect a connecting wire, and
then restart operation.
NO
NO
Are there
any broken wires in
the connectors of the
inverter PC board and
the control PC
board?
Repair the broken wires, and then
restart operation.
YES
YES
NO
Was the
inverter PC board or the
control PC board
replaced?
Are the inverter
PC board and the control PC board
used in combination of types listed
in Table 1?
Correct the combination following
Table 1, and then restart
operation.
YES
YES
NO
Type of control
PC board
U-4ML5XPQ
U-5ML5XPQ
U-6ML5XPQ
EC0640-1
PC0625-1
Type of inverter
PC board
Panasonic
Содержание U-4..6ML5XPQ
Страница 1: ...Service Manual U 4 6ML5XPQ DPQ Urban Multi Mini UM Heat Pump ...
Страница 2: ......
Страница 12: ...Introduction x Urban Multi ML5 Mini UM Heat Pump ...
Страница 17: ...Specifications 5 Part 2 Specifications 1 Specifications 6 1 1 Outdoor Units 6 1 2 Indoor Units 10 Panasonic ...
Страница 37: ...Specifications Specifications 25 Panasonic ...
Страница 38: ...Specifications 26 Specifications Urban Multi ML5 Mini UM Heat Pump ...
Страница 39: ...Specifications Specifications 27 Panasonic ...
Страница 40: ...Specifications 28 Specifications Urban Multi ML5 Mini UM Heat Pump ...
Страница 134: ...Field Setting 122 Test Operation Urban Multi ML5 Mini UM Heat Pump ...
Страница 235: ...Piping Diagrams Appendix 223 U 4 5 6ML5DPQ 3D052712 Panasonic ...
Страница 238: ...Piping Diagrams 226 Appendix Urban Multi ML5 Mini UM Heat Pump ...
Страница 239: ...Wiring Diagrams Appendix 227 2 Wiring Diagrams 2 1 Outdoor Unit U 4 5 6ML5XPQ 3D059640 Panasonic ...
Страница 240: ...Wiring Diagrams 228 Appendix U 4 5 6ML5DPQ 3D05811B Urban Multi ML5 Mini UM Heat Pump ...
Страница 241: ...Wiring Diagrams Appendix 229 2 2 Field Wiring U 4 5 6ML5XPQ 3D057919 Panasonic ...
Страница 242: ...Wiring Diagrams 230 Appendix U 4 5 6ML5DPQ 3D052597 Urban Multi ML5 Mini UM Heat Pump ...
Страница 243: ...Wiring Diagrams Appendix 231 2 3 Indoor Unit S 20 25 32 63LM3HPQ Panasonic ...
Страница 244: ...Wiring Diagrams 232 Appendix S 40 50 80 125LM3HPQ Urban Multi ML5 Mini UM Heat Pump ...
Страница 245: ...Wiring Diagrams Appendix 233 S 20 25 32 40 50 63 80 100 125UM4JPQ Panasonic ...
Страница 246: ...Wiring Diagrams 234 Appendix S 20 25 32 40 50YM3HPQ Urban Multi ML5 Mini UM Heat Pump ...
Страница 247: ...Wiring Diagrams Appendix 235 S 25 32 40 63DM3HPS 3D039564C Panasonic ...
Страница 248: ...Wiring Diagrams 236 Appendix S 20 25NM3HPQ Urban Multi ML5 Mini UM Heat Pump ...
Страница 249: ...Wiring Diagrams Appendix 237 S 20 25 32 40 50 63FM3HPQ Panasonic ...
Страница 250: ...Wiring Diagrams 238 Appendix S80 100 125FM3HPQ Urban Multi ML5 Mini UM Heat Pump ...
Страница 252: ...Wiring Diagrams 240 Appendix S 32 63 100TM3JPR 3D039801D Urban Multi ML5 Mini UM Heat Pump ...
Страница 255: ...Wiring Diagrams Appendix 243 Panasonic ...
Страница 256: ...Wiring Diagrams 244 Appendix Urban Multi ML5 Mini UM Heat Pump ...
Страница 257: ...Wiring Diagrams Appendix 245 Panasonic ...
Страница 259: ...Option List Appendix 247 Panasonic ...
Страница 262: ...Example of Connection 250 Appendix Urban Multi ML5 Mini UM Heat Pump ...
Страница 283: ......