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Troubleshooting by Remote Controller
SiBE341027
112
Service Diagnosis
2.7
STD Compressor Motor Overcurrent/Lock
Remote
Controller
Display
E6
Applicable
Models
RQYQ10P~16PY1B
Method of Error
Detection
Detects the overcurrent with current sensor (CT).
Error Decision
Conditions
Error is decided when the detected current value exceeds 28.8 A for 2 seconds.
Supposed
Causes
Stop valve is not opened
Obstacles at the air outlet
Improper power supply voltage
Defective magnetic switch
Defective compressor
Defective current sensor (A6P, A8P)
Troubleshooting
Note:
*1. One of the possible factors may be chattering due to rough MgS contact.
*2. Abnormal case
The current sensor value is 0 during STD compressor operation.
The current sensor value is more than 15.0A during STD compressor stop.
Is the stop valve open?
NO
Obstacle
exists around
the air outlet.
YES
Is the power
supply voltage
normal?
NO
NO
NO
YES
NO
Is the magnetic
switch (K2M, K3M)
normal? (*1)
Is above
wiring
correct?
NO
Is current
sensor
correct? (*2)
Check the wiring from power supply ~ current sensor (A6P, A8P) ~
MgS (K2M, K3M) ~ compressor
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Open the stop valve.
Remove the obstacle.
Correct the power supply
voltage.
Replace the magnetic
switch.
Correct wiring.
Replace the corresponding
current sensor
(A6P or A8P).
Replace the compressor.
YES
YES
YES
YES