Samsung AQV12F2VE, Service Manual

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Samsung Electronics
5-9
5-4 Check method of major parts
Troubleshooting
NO
1
Parts Check method
Inverter controller
(outdoor unit con-
troller)
1. Open the top cover of outdoor unit.
2. Separate the connector (3P) connecting the comp from the outdoor unit controller. (wire
to wire connector).
3. Operate the aircon in the turbo mode. (operate the outdoor 3 minutes after)
4. Measure the voltage across the terminals of comp connector (3p) from the power TR
module if the outdoor fan is running.
( If normal)
AC voltage of each terminal is similar.
•Phase U-V : AC voltage is measured (80V- 190V)
•Phase V-W : AC voltage is measured (80V- 190V)
•Phase W-U : AC voltage is measured (80V- 190V) (at AC220V)
(If abnormal)
•The AC voltage is not measured from any one(or two) of Phase U-V, V-W or W-U.
- Check the power TR module.
- Check the other parts
MEASURING METHOD of INVERTER CONTROLLER
(Unit defect)
♦
If the comp is locked.
-> Replace the comp.
♦
If the comp is operating without the revolution of fan motor
-> Take out the protection cover.(cooling mode)
-> Check the fan motor connector and replace the fan motor.