SiBE121135
Troubleshooting for SA Indoor Unit - FCQG, FFQ, FHQ, FDBQ, FBQ Series
Service Diagnosis
293
6.8
Signal Transmission Error (between Indoor Unit and
Remote Controller)
Remote
Controller
Display
U5
Method of
Malfunction
Detection
Microcomputer checks if transmission between indoor unit and remote controller is normal.
Malfunction
Decision
Conditions
Normal transmission does not continue for specified period.
Supposed
Causes
Connection of 2 main remote controllers (when using 2 remote controllers)
Defective indoor unit PCB
Defective remote controller
Transmission error caused by noise
Troubleshooting
Normal
Normal
There is possibility of
malfunction caused by noise.
Check the surrounding area and
turn on again.
Set one remote controller to
"SUB"; turn the power supply off
once and then back on.
Replace the indoor unit PCB.
There is possibility of
malfunction caused by noise.
Check the surrounding area and
turn on again.
NO
YES
YES
Return to normal?
Return to normal?
NO
YES
YES
YES
NO
NO
NO
NO
YES
(R13008)
Using 2 remote
controllers?
Is SS1 of
both remote controllers
set to "MAIN"?
Operation
returns to normal when
the power is turned off
momentarily.
All indoor PCB
microcomputer monitors
blink?
Replace the remote controller.
Replace the indoor unit PCB.
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
Содержание 3MXS40K2V1B
Страница 187: ...SiBE121135 RA Indoor Unit Operation Manual 175 2 1 17 Quick Reference FTXG25 35 50JV1BW A Quick Reference ...
Страница 188: ...RA Indoor Unit SiBE121135 176 Operation Manual FTXS20 25K2V1B CTXS15 35K2V1B Quick Reference ...
Страница 189: ...SiBE121135 RA Indoor Unit Operation Manual 177 FVXG25 35 50K2V1B Quick Reference ...
Страница 246: ...SA Indoor Unit SiBE121135 234 Operation Manual 2 Start 5s 5s 5s 5s 5s End ...
Страница 413: ...SiBE121135 Outdoor Unit 80 90 Class Removal Procedure 401 7 Remove the sound blanket inner Step Procedure Points R10439 ...