E6" Outdoor Unit: Std Compressor Motor Overcurrent/Lock - Daikin RTSQ20PY1 Service Manual

SiBE31-801_C
E6
4.18 " " Outdoor Unit: STD Compressor Motor Overcurrent/
Lock
E6
Remote
Controller
Display
Applicable RTSQ8P~16P (Outdoor Unit)
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
In case of the models RTSQ14P
and 16P, 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?
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 the compressor.
250