Troubleshooting (Op: Central Remote Controller); Pc Board Defect; M1" Pc Board Defect - Daikin VRV II RXYQ8MY1K Service Manual

Si39-502A
4.

Troubleshooting (OP: Central Remote Controller)

" M1 "
4.1

PC Board Defect

M1
Remote
Controller
Display
Applicable Central remote controller
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 central remote controller.
Troubleshooting
Defect of central remote controller PC board

Troubleshooting (OP: Central Remote Controller)

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