Troubleshooting by Indication on the Remote Controller
Troubleshooting
205
3.52
“
UH
”
Malfunction of System, Refrigerant System Address
Undefined
Remote
Controller
Display
UH
Applicable
Models
AII indoor unit models
U-4..6ML5DPQ, U-4..6ML5XPQ
Method of
Malfunction
Detection
Malfunction
Decision
Conditions
Supposed
Causes
Improper connection of transmission wiring between outdoor unit and outdoor unit outside
control adaptor
Defect of indoor unit PC board
Defect of outdoor unit PC board (A1P)
Troubleshooting
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
(V2831)
NO
YES
YES
After fixing incorrect wiring,
push and hold the RESET
button on the master outdoor
unit PC board for 5 seconds.
Normal
NO
Is
electricity
being introduce for
the first time after
installationor after an indoor
or outdoor unit PC
board has been
replaced?
Is
indoor - outdoor and
outdoor - outdoor unit
transmission wiring
normal?
YES
Normal
NO
Does a malfunction occur?
NO
Does
a "
UH
" malfunction occur
for all indoor units in
the system?
YES
NO
Does
a malfunction
occur even after 12
minutes elapses from the
time when electricity is
introduced to indoor
and outdoor
units?
YES
Replace indoor unit PC board.
Replace outdoor unit PC
board (A1P).
After fixing incorrect wiring,
push and hold the RESET
button on the outdoor unit
PC board for 5 seconds
∗
The unit will not run for up to
12 minutes.
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: ......