Daikin RXYQ-TA Series Service Manual page 235

SiUS341615E
∗1. Make a comparison between voltage measured by the pressure sensor and that read by the
Note:
CHECK 4
CHECK 12
Service Diagnosis
pressure and
low pressure checked
by the service checker the
same as the actual measured
values of the high and
low pressure
CHECK 4
Is the power transistor
pressure gauge.
(The pressure sensor makes measurement of voltage at its connector block to convert it to
pressure. )
CHECK 12
Refer to page 295.
Refer to page 302.
A
Are
the high
NO
sensors?
YES
NO
normal?
YES
Troubleshooting by Error Code
Replace the outdoor unit main
PCB (A1P).
Replace the inverter PCB.
RXYQ72-120TA: A3P
RXYQ144/168TA: A3P, A6P
Replace the compressor.
RXYQ72-120TA: M1C
RXYQ144/168TA: M1C, M2C
222