SiUS372201EB
Troubleshooting by Error Code
Part 6 Service Diagnosis
444
3.78 System Not Set Yet
Applicable
Models
All indoor unit models
All outdoor unit models
Error Code
UF
Except on wrong wiring detection operation.
During wrong wiring detection operation, refer to page 255.
Method of Error
Detection
On check operation, the number of indoor units in terms of transmission is not corresponding to that
of indoor units that have made changes in temperature.
Error Decision
Conditions
The error is determined as soon as the abnormality aforementioned is detected through checking
the system for any erroneous connection of units on the check operation.
Supposed
Causes
Improper connection of transmission wiring between indoor-outdoor units and outdoor-outdoor
units
Failure to execute check operation
Defective indoor unit PCB
Stop valve is not opened
Troubleshooting
Is
indoor-o
u
tdoor
and o
u
tdoor-o
u
tdoor
u
nit
transmission
w
iring
normal?
Is
indoor-o
u
tdoor
and o
u
tdoor-o
u
tdoor
u
nit
transmission
w
iring
normal?
Replace the indoor
u
nit
control PCB.
W
iring check operation may
not ha
v
e
b
een carried o
u
t
s
u
ccessf
u
lly.
After fixing incorrect
w
iring,
press and hold the
RETURN
(BS3)
bu
tton on the o
u
tdoor
u
nit main PCB for 5 seconds.
∗
The
u
nit
w
ill not r
u
n for
u
p to
12 min
u
tes.
YES
N
O
YES
N
O
N
O
YES
Is the check
operation
carried o
u
t?
Open the stop
v
al
v
e.
YES
N
O
Are the stop
v
al
v
es opened?
Caution
Be s
u
re to t
u
rn off the po
w
er s
w
itch
b
efore connecting or disconnecting
connectors, or parts may
b
e damaged.
Содержание VRV EMERION REYQ-AATJA
Страница 1: ...Service Manual Heat Recovery 60 Hz REYQ AATJA B 208 230 V REYQ AAYDA B 460 V SiUS372201EB...
Страница 458: ...Check SiUS372201EB 451 Part 6 Service Diagnosis Reference Reference CHECK 7 Refer to page 457 CHECK 8 Refer to page 458...
Страница 490: ...Wiring Diagrams SiUS372201EB 483 Part 7 Appendix 1 2 2 Multi Branch Selector Unit Standard Series BS4Q54TVJ 3D089123B...
Страница 492: ...Wiring Diagrams SiUS372201EB 485 Part 7 Appendix BS6 8Q54TVJ 2D089122B...
Страница 493: ...SiUS372201EB Wiring Diagrams Part 7 Appendix 486 BS10 12Q54TVJ 2D089121B...
Страница 499: ...SiUS372201EB Wiring Diagrams Part 7 Appendix 492 FXFQ07 09 12 15 18 24 30 36 48TVJU 3D086460B...
Страница 500: ...Wiring Diagrams SiUS372201EB 493 Part 7 Appendix BYCQ125BGW1 Self Cleaning Decoration Panel for FXFQ TVJU 3D076375A...
Страница 501: ...SiUS372201EB Wiring Diagrams Part 7 Appendix 494 FXZQ05 07 09 12 15 18TAVJU 3D110443A...
Страница 505: ...SiUS372201EB Wiring Diagrams Part 7 Appendix 498 FXEQ07 09 12 15 18 24PVJU 3D098557A...
Страница 506: ...Wiring Diagrams SiUS372201EB 499 Part 7 Appendix FXDQ07 09 12 18 24MVJU C 3D050501C...
Страница 507: ...SiUS372201EB Wiring Diagrams Part 7 Appendix 500 FXSQ05 07 09 12 15 18 24 30 36 48 54TAVJU C 3D110467C...
Страница 509: ...SiUS372201EB Wiring Diagrams Part 7 Appendix 502 FXMQ07 09 12 15 18 24 30 36 48 54PBVJU 3D093209B...
Страница 513: ...SiUS372201EB Wiring Diagrams Part 7 Appendix 506 FXHQ12 24 36MVJU 3D048116C...
Страница 514: ...Wiring Diagrams SiUS372201EB 507 Part 7 Appendix FXAQ07 09 12 18 24PVJU 3D075354F...
Страница 521: ...SiUS372201EB Wiring Diagrams Part 7 Appendix 514 VAM1200GVJU 3D073270D...