Lc" Outdoor Unit; Inverter And Control Pc Board; P1" Outdoor Unit - Daikin VRV III REYQ8PY1B Service Manual

SiBE37-701
LC
3.40 " " Outdoor Unit:

Inverter and Control PC Board

LC
Remote
Controller
Display
Applicable REYQ8P~48P
Models
Method of Check the communication state between inverter PC board and control PC board by micro-
computer.
Malfunction
Detection
Malfunction When the correct communication is not conducted in certain period.
Decision
Conditions
Supposed
Causes
Troubleshooting
Malfunction of Transmission between
Malfunction of connection between the inverter PC board and outdoor main PC board
Defect of outdoor main PC board (transmission section)
Defect of inverter PC board
Defect of noise filter
Faulty fan inverter
Incorrect type of inverter PC board
Faulty inverter compressor
Faulty fan motor
External factor (noise etc.)
Troubleshooting by Indication on the Remote Controller
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