Unspecified Voltage (Between Indoor And Outdoor Units) - Daikin FVKS25BVMB Service Manual

Troubleshooting
4.8 Unspecified Voltage
UA
Remote
Controller
Display
Method of The supply power is detected for its requirements (different from pair type and multi type) by the
indoor / outdoor transmission signal.
Malfunction
Detection
Malfunction The pair type and multi type are interconnected.
Decision
Conditions
Supposed
Causes
Troubleshooting
92
(between Indoor and Outdoor Units)
Wrong models interconnected
Wrong indoor unit PCB mounted
Indoor unit PCB defective
Wrong outdoor unit PCB mounted or defective
Be sure to turn off power switch before connect or disconnect connector, Be sure to turn off power switch before connect or disconnect connector,
Caution Caution or parts damage may be occurred. or parts damage may be occurred.
Check the indoor and outdoor unit Check the indoor and outdoor unit
model numbers. model numbers.
Indoor unit and outdoor unit Indoor unit and outdoor unit
matched? matched?
YES YES
Check the code numbers Check the code numbers
(2P01234, for example) of the (2P01234, for example) of the
indoor and outdoor unit PCB indoor and outdoor unit PCB
with the Parts List. with the Parts List.
Matched compatibly? Matched compatibly?
YES YES
NO NO
NO NO
SiBE06-514A
Match the compatible Match the compatible
models. models.
Change for the specified Change for the specified
PCB (1) or (2). PCB (1) or (2).
Replace the indoor unit Replace the indoor unit
PCB (1) (or the outdoor unit PCB (1) (or the outdoor unit
PCB). PCB).
(Q0347) (Q0347)
Service Diagnosis