Ipm And Over Current Error - Samsung AC026FBRDEH Service Manual

4-3-8 IPM and over current error

1. Inspection items
1) Is refrigerant filled?
2) Is the compressor operating without a problem?
3) Is the compressor connected properly?
4) Are there any obstacles around the indoor/outdoor units?
2. Inspection order
Are outdoor units installed correctly?
Are indoor units installed correctly?
Is service valve completely opened?
Is the compressor
connection line properly connected to the
compressor?
Are the values for R418
current sensing resistance within
19mΩ-21mΩ?
Is resistance value of the
different compressor phases
(UV, V W, WU)
less than 2Ω?
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Samsung Electronics
Yes
Yes
Yes
Yes
Yes
Yes
No
Reinstall after removing obstacles
No
Reinstall after removing obstacles
No
No
Check the connection status of the compressor
No
Resistance replacement
No
Compressor replacement
Open valves
(continued on the back)
4-19