Ipm Over Current Error - Samsung AJ009JNNDCH Service Manual

4-5-5 IPM Over Current error

1. Check items
1) Is the coolant 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
Samsung Electronics
Checking Comp Resistance ( Normal value )
U-V
AJ020JCJ2CH 0.5~1.1Ω
AJ024JCJ3CH 0.2~0.6Ω
AJ036JCJ5CH 0.1~0.5Ω
Turn off the power and reconnect the table.
Turn off the power and correct or replace the
temperature sensor location
V-W W-U
0.5~1.1Ω 0.5~1.1Ω
0.2~0.6Ω 0.2~0.6Ω
0.1~0.5Ω 0.1~0.5Ω
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