Troubleshooting for Outdoor Unit
SiUS181305E
213
Troubleshooting
7.27 Signal transmission Error between Indoor Unit and
Outdoor Unit in the Same System
Error Code
U9
Method of Error
Detection
Error Decision
Conditions
Supposed
Causes
Signal transmission error within system
Defective electronic expansion valve in indoor unit of other system
Defective indoor unit PCB in other system
Improper connection of transmission wiring between indoor and outdoor unit
Troubleshooting
Turn on all indoor units.
U9
has
been displayed for 2
minutes or more?
UA
blinks on the
other remote controllers
within the same
system?
A1
blinks on the
other remote controllers
within the same
system?
A9
blinks on the
other remote controllers
within the same
system?
U4
blinks on the
other remote controllers
within the same
system?
Re-diagnose by display after
passage of 2 minutes or
more.
Refer to troubleshooting for
UA
error code.
Refer to troubleshooting for
U5
error code.
(R19192)
YES
NO
NO
YES
Refer to troubleshooting for
A1
error code.
NO
YES
Refer to troubleshooting for
A9
error code.
NO
YES
Refer to troubleshooting for
U4
error code.
YES
NO
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
Содержание RMXS-L Series
Страница 10: ...Safety Considerations Safety Considerations ix...
Страница 11: ...SiUS181305E 1 List of Functions Part 1 List of Functions 1 Functions 2 1 1 Outdoor Unit 2 1 2 Indoor Unit 3...
Страница 129: ...SiUS181305E Field Settings Test Operation and Field Settings 120...
Страница 144: ...FFQ09 12 15 18LVJU SiUS181305E 135 Remote Controller...
Страница 249: ...SiUS181305E Removal Procedure Booklet No Appendix 240...