10-14
Samsung Electronics
10-2-13 O.C(Over Current) error
Indoor display
3-LED DISPLAY
7-SEG DISPLAY
DESCRIPTION
LED1
LED2
LED3
E464
IPM Over Current(O.C) Error
◎
{
◎
Outdoor display
{
{
◎
IPM Over Current(O.C) Error
O
LED ON
◎
LED BLINKING
{
LED OFF
1. Checklist :
1) Is the IPM Shunt resistance value correct? Check the resistor is opened
2) Is the condition of surrounding temperature abnormal overload?
3) Is there any problem as like the temperature sensor separation or measurement value error?
4) Is the interphase resistance of compressor normal?
2. Troubleshooting procedure
Restart after power off.
Is the O.C error occurred?
Is the connection of compressor wire is normal?
Is the O.C error occurred again?
Is the condition of indoor/outdoor temperature
normal load?
NO
NO
NO
NO
Terminate the service
Connect the comp wire normally
Terminate the service
Restart after returning to the normal load
Is the O.C error
occurred again?
Terminate the service
YES
YES
YES
YES
Summary of Contents for AR18NSFPEWQNEU
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Page 41: ...DB68 05092A 4...
Page 42: ...7 2 _18K DB68 06674A 1...
Page 43: ...7 3 7 2 Outdoor Unit_24K DB68 06675A DB68 06675A 00...
Page 45: ...S a m s u n g C o n f i d e n t i a l S a m s u n g...
Page 46: ...8 3 8 3 Refrigerating Cycle Diagram...
Page 53: ...9 1 2 9 2 AR18NSFPEWQXEU AR24NSFPEWQXEU AR18NSFHBWKXEU AR24NSFHBWKXEU Outdoor Unit...
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