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Daikin VRV III-S RXYMQ36 48PVJU Service Manual: Troubleshooting (op: Centralized Remote Controller)

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SiUS34-907
4. Troubleshooting (OP: Centralized Remote
Controller)
M1
4.1
"
" 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
 Defect of centralized remote controller PCB
Supposed
 Defect of intelligent Touch Controller PCB
Causes
 Defect of Schedule timer PCB
Troubleshooting
Replace the centralized remote controller.
Be sure to turn off the power switch before connecting or disconnecting the connector, or parts may be damaged.
Caution
Turn ON the power supply of the
centralized remote controller with
M1
"
" displayed once again.
Is the
Troubleshooting
M1
With "
displayed
again?
M1
Without "
" displayed

Troubleshooting (OP: Centralized Remote Controller)

intelligent Touch Controller
M1
" displayed
Replace the centralized remote
controller.
centralized remote controller:
Normal
It is supposed that the
malfunction results from
external factors (e.g. noises)
from other equipment.
197

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    RXYQ18PAY6 service manual & vrv Fulform