Daikin RTSQ20PY1 Service Manual page 297

SiBE31-801_C
Troubleshooting
*1. List of Inverter PCBs
Troubleshooting
Be sure to turn off power switch before connect or disconnect connector,
Caution
or parts damage may be occurred.
Was the PCB (A1P) YES
replaced with a
spare PCB?
NO
Are the connectors
of the inverter PCB,
main PCB, and sub
PCB all securely
connected?
Is the type of the
inverter PCB
correct?(*1)
The INV
compressor has
insulation resistance
of not more than
100kΩ.
The fan motor has
insulation resistance
of not more than
1MΩ.
Applicable Models
RTSQ8 ~ 16P
0509-1
BTSQ20P
Troubleshooting by Indication on the Remote Controller
Does the model setting
of the spare PCB match
the system?
YES
NO
YES
NO
YES
YES
NO
YES
NO
A
NO
Make correct model setting.
(For setting procedure, refer to
information on P.168.)
Properly connect the connectors.
Replace it with a correct
PCB.
Replace the compressor (M1C).
Replace the fan motor.
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