Samsung AQV12NSA Service Manual page 67

Troubleshooting
12-2-11 DC-Link voltage sensor error
1. Checklist :
1) Is the voltage of indoor unit terminal block 1, 2 correct after power supply?
2) Is the capacitor(C101, C102, C103) for DC-Link assembled in accordance the specification?
3) Are R112, R113, R114 470 Kohm?
4) Is R115 14.3Kohm?
2. Troubleshooting procedure
Is the voltage of indoor unit terminal block
1, 2 correct after power supply?
Yes
Is the capacitor(C101, C102, C103)
for DC-Link assembled in accordance
the specification?
Yes
Are R113, R114, R115 470kohm?
Yes
Is R116 14.3kohm?
Yes
12-13
All manuals and user guides at all-guides.com
No
No
No
Apply the troubleshooting for
outdoor unit power supply error.
No
Connect the connector.
Exchange the PCB.
Exchange the Fan.
Exchange the PCB. Normal operation
Exit
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