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Samsung Electronics
12-2-12 O.C.(Over Current) error
1. Checklist :
1) Is the Shunt resistance value correct?
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.(Over Current) error occurred?
Is the Shunt resistance value normal?
Is the interphase resistance value
of compressor (u
v, v
w, w
u) normal?
Is the compressor body and
interphase resistance insulated?
Is the condition of
indoor/outdoor temperature normal load?
Is the position of temperature sensor
and the sensing value normal?
Is the connection cable for
the compressor and power terminal normal?
Exchange the PCB.
Terminate the service.
Exchange the PCB.
Exchange the Compressor.
Exchange the Compressor.
Restart after returning
to the normal load.
Correct the sensor position or
exchange the sensor.
Correct the cable connection.
Is the O.C. error occurred again?
Terminate
the service.
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
Yes
No
No
Yes
No
Troubleshooting
12-14
Содержание AQ18VBA
Страница 10: ...Samsung Electronics 5 1 5 Exploded Views and Parts List 5 1 Indoor Unit ...
Страница 12: ...Samsung Electronics 5 2 Outdoor Unit 5 3 ...
Страница 15: ...MEMO Samsung Electronics 5 6 ...
Страница 16: ...Samsung Electronics 5 7 5 4 Ass y Control Out AQV18V AX DB93 04268D AQV24V AX DB93 04268C ...
Страница 19: ...8 2 Outdoor Unit This Document can not be used without Samsung s authorization Samsung Electronics 8 2 ...
Страница 20: ...Samsung Electronics 4 1 4 Disassembly and Reassembly Necessary Tools Item Remark SCREW DRIVER MONKEY SPANNER ...
Страница 30: ...MEMO Samsung Electronics 4 11 ...
Страница 60: ...Samsung Electronics SMPS AC COMMUNICATION SUB PCB INDOOR FAN CONTROL BUZZER CONTROL Block Diagram 13 2 ...
Страница 61: ...Samsung Electronics 13 3 13 2 Outdoor Unit ...
Страница 62: ...Samsung Electronics Block Diagram 13 4 ...
Страница 66: ...This Document can not be used without Samsung s authorization 7 2 Outdoor Unit Samsung Electronics 7 2 ...
Страница 67: ...7 3 Samsung Electronics MEMO ...
Страница 91: ...Samsung Electronics 11 1 2 Outdoor Unit Operating Instructions 11 2 Air Outlet Air Inlet Rear Connection Valve ...