Daikin FXSQ32P7VEB [246/370] Std compressor motor overcurrent lock

Daikin FXHQ63MVET [246/370] Std compressor motor overcurrent lock
Troubleshooting by Indication on the Remote Controller SiBE311209
237 Service Diagnosis
4.18 STD Compressor Motor Overcurrent/Lock
Remote
Controller
Display
E6
Applicable
Models
Outdoor Unit: RTSQ10~16PAY1
Method of Error
Detection
Detects the overcurrent with current sensor (CT).
Error Decision
Conditions
Error is decided when the detected current value exceeds the below mentioned value for 2
seconds.
400 V unit: 15.0 A
Supposed
Causes
Stop value is not opened
Obstacles at the air outlet
Improper power voltage
Defective magnetic contactor
Defective compressor
Defective current sensor (A6P, A7P)
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.
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
Is the stop valve open?
NO
YES
Is the power supply
voltage normal?
YES
NO
NO
YES
Is the magnetic contactor
(K2M, K3M) normal? (*1)
NO
YES
Obstacle exists around
the air outlet.
In case of the models RTSQ14PA
and 16PA, identify the relevant
compressor while in monitor mode.
Check the wiring from power supply ~ current sensor (A6P, A7P) ~
MgS (K2M, K3M) ~ compressor
Is above wiring
correct?
NO
YES
NO
YES
Is current sensor
correct? 1
Open the stop valve.
Remove the obstacle.
Correct the power voltage.
Replace the magnetic
contactor.
Correct wiring.
Replace the corresponding
current sensor (A6P or
A7P).
Replace the compressor.

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