Daikin REYQ8-48PY1B, Service Manual

Page: 372 / 477

Troubleshooting by Indication on the Remote Controller SiBE37-701_B
361 Troubleshooting
Troubleshooting
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Replace the main PCB of the
outdoor unit.
Confirmation of malfunction 3 Confirmation of malfunction 4
YES
NO
Diagnosis Flow 3
YES
NO
NO
YES
YES
NO
Check if the
outdoor unit PCB
is replaced with
PCB for spare
parts.
Is a correct spare
PCB procured?
Check if the spare
PCB setting is
correct.
Check if the unit
is not connected
to outdoor units
of different
models.
Check the model of the outdoor
unit.
Replace it with the correct spare
PCB.
Correct the setting to reset the
power.
Replace the spare PCB.
NO
YES
YES
NO
Confirmation of malfunction 3 Confirmation of malfunction 4
Diagnosis Flow 4
Is a single unit of
model REMQ
installed?
The connection wiring
of multi outdoor units is
broken or
disconnected.
Procure the correct model of unit.
(The REMQ model is dedicated to
multi connections.)
Correct the connection wirings.
Replace the main PCB (A1P).