Field Setting Abnormality After Replacing Main Pcb Or Combination Error Of Pcb - Daikin VRV II-Q RQYQ8-48PY1B Service Manual

Troubleshooting by Remote Controller
2.28 Field Setting Abnormality after Replacing Main PCB or
Combination Error of PCB
PJ
Remote
Controller
Display
Applicable RQYQ-PY1B
Models
Method of Error This error is detected according to communications with the INV. PCB.
Detection
Error Decision Make judgement according to communication data on whether or not the type of the INV. PCB
is correct.
Conditions
Supposed
Causes
Troubleshooting
148
Mis-matching of type of PCB
Defective (or no) field setting after replacing main PCB
Be sure to turn off power switch before connect or disconnect connector,
Caution or parts damage may be occurred.
Is the type of the
compressor inverter
PCB (A4P) correct?
YES
Is the type of the fan
inverter PCB (A5P)
correct?
YES
Is the setting of DIP
switches when replace the
main PCB correct?
YES
Does the preparation
indication lamp (H2P)
on the main PCB turn
OFF?
YES
NO
NO
NO
NO
SiBE341027
Replace it with the
correct compressor
inverter PCB.
Replace it with the
correct fan inverter
PCB.
Set the DIP switches
correctly.
(After setting: Reset the
power supply)
Rectify the connection
wiring.
Replace the outdoor
unit main PCB.
Service Diagnosis