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Samsung Electronics
12-17
Troubleshooting
No
No
No
No
12-2-15 DC Link Over voltage/ Low voltage error
1. Checklist :
1) Is the power voltage normal?
2) Is the voltage of front and back terminal of indoor(outdoor) power relay normal?
3) Is the resistance value for DC Link voltage detection NORMAL?
4) Is the resistance value of DC Link discharge normal?
5) Is the appearance of DC Link Capacitor normal?
2. Troubleshooting procedure
Yes
Terminate the service.
Exchange the PCB.
Exchange the PCB.
Exchange the PCB.
Yes
Yes
Yes
No
No
Yes
Terminate the service.
No
Yes
Yes
Yes
Restart after power off.
Is the DC Link voltage error occurred again?
Is the front and back terminal voltage of
indoor/outdoor power relay normal?
Is the resistance for the
detection of DC Link voltage normal?
Exchange the reactor.
Is the appearance of
DC Link Capacitor normal?
Is the power voltage normal?
Reassembly the PCB.
Is the resistance value of
DC Link discharge normal?
Is the reactor insulation damaged?
Exchange the PCB.
Exchange the PCB.
Содержание UH052EAS
Страница 18: ...Samsung Electronics 4 1 4 Disassembly and Reassembly Necessary Tools Item Remark SCREW DRIVER MONKEY SPANNER ...
Страница 29: ...Samsung Electronics 5 1 5 Exploded Views and Parts List 5 1 Indoor Unit DH070 052 EAS ...
Страница 31: ...Samsung Electronics 5 3 Exploded Views and Parts List 27 26 UH070 052 EAS 5 2 Outdoor Unit ...
Страница 33: ...Samsung Electronics 5 5 5 3 Ass y Control Out ...
Страница 56: ...Samsung Electronics 8 2 Outdoor Unit This Document can not be used without Samsung s authorization EMI PCB 8 2 ...
Страница 57: ...9 1 1 Indoor Unit 9 Circuit Descriptions 9 1 PCB Circuit Descriptions Samsung Electronics ...
Страница 58: ...9 1 ...
Страница 59: ...9 1 2 Outdoor Unit 9 1 PCB Circuit Descriptions 9 2 ...
Страница 60: ...Temperature sensor EEV PCB display Communcation Tap motor 4 way valve Samsung Electronics ...
Страница 61: ...MEMO Samsung Electronics ...
Страница 62: ...Samsung Electronics 9 2 Refrigerating Cycle Diagram 9 3 ...
Страница 63: ...Samsung Electronics The red number connecter is not used 10 PCB Diagram 10 1 Indoor PCB 10 1 ...
Страница 95: ...Samsung Electronics 13 Block Diagram 13 1 Indoor Unit 13 1 ...
Страница 98: ...Samsung Electronics 14 2 Pressure Graph UH052EAS 14 2 UH070EAS ...