Ipm Over Current Error - Samsung AR07TSFABWKN Service Manual

4-6-6 IPM Over current error

1. Check items
1) Is the cool ant changed?
2) Is the compressor running normally?
3) Is the compressor connected correctly?
4) Are there any obstacles near the indoor and outdoor units?
2. Check procedure
Is the ourdoor unit unstalled correctly?
Is the resistance
between pin1 and pin3 of the fan
between pin4 and pin3 of the fan (CN901)
pin5 and pin3 of the fan (CN901) during
the operation 1V~6V?
Is the fan running the operation mode?
Is the resistance
in the range of Mega
Are the temperature
sensor location and the measured
between pin6 and pin3 of the fan (CN901) fluctuate?
(High 5V~6V, Low:0V~1V)
Samsung Electronics
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
Check the compressor connection status.
No
Replace the compressor.
Checking Comp Resistance (Normal Value)
AJ020TXJ2CH
AJ024TXJ3CH
AJ020TXS3CH
AJ***TX*4CH
AJ***TX*5CH
No
Replace the compressor.
No
Trun off the power and reconnect the table.
Trun off the power and correct or replace
No
the temperature sensor location.
Troubleshooting
the unit again.
the unit again.
U-V V-W W-U
4-35