Daikin Aurora Series Service Manual page 227

SiUS341802E
∗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 286.
Refer to page 297.
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.
RXLQ-TATJU,
RXLQ-TAYDU: A3P
RXLQ-TAYCU,
RXYQ-TAYCU: A4P
Replace the compressor.
214