Compressor Motor Overcurrent/Lock; E6" Compressor Motor Overcurrent/Lock - Daikin RXYQ72 Serivce Manual

SiUS39-601
2.17 "E6"

Compressor Motor Overcurrent/Lock

E6
Remote
Controller
Display
Applicable RXYQ72M, 96M
Models
Method of Detects the overcurrent with current sensor (CT).
Malfunction
Detection
Malfunction Malfunction is decided when the detected current value exceeds the below mentioned value for 2
seconds.
Decision
Conditions
Supposed
Causes
Troubleshooting
Troubleshooting
200V unit : 28.8A
Closed stop value
Obstacles at the discharge port
Improper power voltage
Faulty magnetic switch
Faulty compressor
Faulty current sensor (A5P)
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) normal?
Check the wiring from power supply~current
sensor (A5P)~Mgs (K2M)~Compressor.
Is above
wiring correct?
YES
Is the current
sensor correct?
YES
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 current sensor
(A5P).
Replace the compressor.
(V3051)
141