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