Samsung AS09HPB, Service Manual

Page: 70 / 96

Troubleshooting
12-13 Samsung Electronics
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
Yes
Yes
Yes
No
Is the capacitor(C101,C102,C103)
for DC-Link assembled in accordance
the specification?
No
No
No
Is the voltage of indoor unit terminal block
1, 2 correct after power supply?
Apply the troubleshooting for
outdoor unit power supply error.
Normal operation
Exit
Exchange the PCB.
Yes
Is R116 14.3kohm? Exchange the PCB.
Exchange the PCB.
Are R113, R114, R115 470kohm? Exchange the PCB.
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