Samsung AQB09JJWC Service Manual page 63

Troubleshooting
11-2-11 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?
Is the capacitor(C101, C102, C103)
for DC-Link assembled in accordance
Are R113, R114, R115 470kohm?
11-15
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Yes
the specification?
Yes
Yes
Is R116 14.3kohm?
Yes
Apply the troubleshooting for
outdoor unit power supply error.
No
No
Connect the connector.
No
Exchange the PCB.
No
Exchange the Fan.
Exchange the PCB.
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Normal operation
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