Daikin RXYQ96PYDN, Руководство по обслуживанию

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Troubleshooting by Indication on the Remote Controller SiUS34-801A_b
392 Troubleshooting
Troubleshooting
*1. List of Inverter PC boards
Model Name Electric symbol
RXYQ72, 96, 120PYDN, PTJU
REMQ72, 96, 120PYDN, PTJU
Compressor inverter PC board A4P
Fan inverter PC board A5P
REYQ72, 96, 120PYDN
REYQ72, 96, 120PTJU
Compressor inverter PC board A5P
Fan inverter PC board A6P, A7P
REYQ144PTJU Compressor inverter PC board A4P
RXYQ144PTJU Fan inverter PC board A5P
Do the
lead wires have any
disconnection, broken wire,
short circuit, or ground
fault?
Check 4
Check if the power
transistor is
normal.
YES
Check if
insulation resistance of
the compressor is 100k
Ω
and above.
NO
YES
Check 4
Check if the power
transistor of the fan
driver is normal.
NO
NO
YES
YES
NO
Replace the lead wires.
Replace the compressor and
compressor inverter PC board
(A2P) at the same time.
Replace the inverter PC board
(A2P).
Replace the compressor inverter
PC board (A2P) and fan inverter
PC board (A5P).
Replace the inverter PC board
(A2P).
Does the
power supply normally
come back ON?
Is the
single system applied
to the outdoor
unit?
YES
NO
It is supposed that the malfunction
results from external causes other
than failures (e.g. exogenous
noises or thunder).
YES NO
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
∗
∗
∗
Check 4 : Referring to the information on P463.
Turn OFF the power supply
once, and then check the
compressor lead wires.
Turn ON the power supply
again.
While in monitor mode, check
whether the system is right-
hand (control PC board 1) or
left-hand (control PC board 3).
While in monitor mode,
check the outdoor unit
concerned.
Single system Multi system