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Daikin VRV - WII Service Manual: Troubleshooting (op: Central Remote Controller)

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SiUS30-604

3. Troubleshooting (OP: Central Remote Controller)

"M1"
3.1
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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Troubleshooting

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  • Fadi Sayess Jul 13, 2016 07:30:
    How do you reset the U4 error on the BRC1C62 control unit?
    Than​ks.