Outdoor Unit: Std Compressor Motor Overcurrent/Lock; E6" Outdoor Unit: Std Compressor Motor Overcurrent/Lock - Daikin VRV III REYQ8PY1B Service Manual

SiBE37-701
E6
3.17 " "
Outdoor Unit: STD Compressor Motor Overcurrent/
Lock
E6
Remote
Controller
Display
Applicable REYQ8P~48P
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
∗
Note: 1 One of the possible factors may be chattering due to rough MgS contact.
∗
2 Abnormal case
Troubleshooting
400 V unit : 15.0 A
Closed stop value
Obstacles at the air outlet
Improper power voltage
Faulty magnetic switch
Faulty compressor
Faulty current sensor (A6P, A7P)
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
outlet.
NO
Is the power
supply voltage
normal?
YES
Is the
magnetic switch
(K2M, K3M) normal?
(∗1)
YES
Check the wiring from power supply ~ current sensor (A6P, A7P) ~
MgS (K2M, K3M) ~ compressor
Is
above wiring
correct?
YES
Is
current sensor
correct? ∗1
YES
The current sensor value is 0 during STD compressor operation.
The current sensor value is more than 15.0A during STD compressor stop.
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
(A6P or A7P).
Replace compressor.
(V3051)
279