Troubleshooting (Op: Centralized Remote Controller); M1" Pcb Defect - Daikin RTSQ20PY1 Service Manual

Troubleshooting (OP: Centralized Remote Controller)

5. Troubleshooting (OP: Centralized Remote
Controller)
M1
5.1 " " PCB Defect
M1
Remote
Controller
Display
Applicable Centralized remote controller
Schedule timer
Models
Method of Detect an abnormality in the DIII-NET polarity circuit.
Malfunction
Detection
Malfunction When + polarity and - polarity are detected at the same time.
Decision
Conditions
Supposed
Causes
Troubleshooting Replace the centralized remote controller.
323
Defect of centralized remote controller PCB
Defect of intelligent Touch Controller PCB
Defect of Schedule timer PCB
Be sure to turn off power switch before connect or disconnect connector,
Caution
or parts damage may be occurred.
Turn ON the power supply of
the centralized controller with
M1
" " displayed once again.
M1
Is the displayed
again?
M1
Without " " displayed
intelligent Touch Controller
M1
With " " displayed
SiBE31-801_C
Replace the centralized
controller.
Centralized controller: Normal
It is supposed that the
malfunction results from
external factors (e.g. noises)
from other equipment.
Troubleshooting