Daikin VRV II RXYQ8MY1K Service Manual page 182

Si39-502A
Troubleshooting
Note: Abnormal case
Troubleshooting
Be sure to turn off power switch before connect or disconnect connector,
Caution or parts damage may be occurred.
Is the stop valve open?
YES
Obstacle
exists around the air
discharge port.
NO
Is the power
supply voltage
normal?
YES
Is the
magnetic switch
(K2M, K3M)
normal?
YES
Check the wiring from power supply ~ current sensor (A5P, A6P) ~
MgS (K2M, K3M) ~ compressor
Is
above wiring
correct?
YES
Is
current sensor
correct?
YES
The current sensor value is 0 during STD compressor operation.
The current sensor value is more than 15.0A during STD compressor operation.
Troubleshooting by Indication on the Remote Controller
NO
YES
NO
NO
NO
NO
Open the stop valve.
Remove the obstacle.
Correct the power voltage.
Replace the magnetic
switch.
Correct wiring.
Replace the corresponding
current sensor
(A5P or A6P).
Replace compressor.
(V3051)
171