Daikin VRV RXYMQ-A Series Service Manual page 244

Troubleshooting by Error Code
Troubleshooting  Subcode P4-01
 Subcode P4-02
Note(s)
1. RXYMQ4AVMK: outdoor unit main PCB (A1P)
2. RXYMQ4AVMK: outdoor unit main PCB (A1P)
Reference
CHECK 11 Refer to page 281.
238
Be sure to turn off the power switch before connecting or disconnecting
Caution
connectors, or parts may be damaged.
Make measurement of
resistance of the radiation
fin thermistor.
CHECK 11
Is the resistance of the
radiation fin thermistor
normal?
YES
The
insulation resistance
of the compressor is
less than 100 k:.
NO
The insulation
resistance of the fan motor
is less than 1 M:.
NO
Turn ON the
power supply.
Does the error
recur?
NO
Be sure to turn off the power switch before connecting or disconnecting
Caution connectors, or parts may be damaged.
The insulation
resistance of the fan
motor is
less than 1 M:.
NO
Turn ON
the power supply.
Does the error recur?
NO
RXYMQ4-6AYFK: inverter PCB (A3P)
RXYMQ4-6AYFK: fan PCB (A4P)
NO
YES
YES
YES
YES
YES
SiME332106E
Replace the relevant PCB ( 1 ).
Replace the compressor
(M1C).
Replace the fan motor.
Replace the relevant PCB ( 1 ).
Continue operation.
Replace the fan motor.
Replace the relevant PCB
( 2 ).
Continue operation.
Part 6 Service Diagnosis