Daikin REYQ8-48PY1B, Service Manual

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Troubleshooting by Indication on the Remote Controller SiBE37-701_B
331 Troubleshooting
Troubleshooting
*1. List of Inverter PCBs
Comp1 Comp2 FAN1 FAN2
REYQ8PY1 PC0509-1 — PC0511-3 PC0511-4
REYQ10PY1 PC0509-1 — PC0511-3 PC0511-4
REYQ12PY1 PC0509-1 — PC0511-3 PC0511-4
REYQ14PY1 PC0509-1 PC0509-1 PC0511-1 PC0511-1
REYQ16PY1 PC0509-1 PC0509-1 PC0511-1 PC0511-1
REMQ8PY1 PC0509-1 — PC0511-1 —
REMQ10PY1 PC0509-1 — PC0511-1 —
REMQ12PY1 PC0509-1 — PC0511-1 —
REMQ14PY1 PC0509-1 — PC0511-3 PC0511-4
REMQ16PY1 PC0509-1 — PC0511-3 PC0511-4
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Was the PCB (A1P)
replaced with a spare
PCB?
YES
Make correct model setting.
(For setting procedure, refer to
information on P186.)
Does the model setting
of the spare PCB match
the system?
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
100k
Ω
.
The fan motor has
insulation resistance
of not more than
1M
Ω
.
YES
NO
NO
NO
YES
NO
YES
YES
NO
YES
NO
A
Properly connect the connectors.
Replace it with a correct
PCB.
Replace the compressor (M1C).
Replace the fan motor.