Operating Instructions and Installation
4-18
Samsung Electronics
Troubleshooting
4-3-9 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
Yes
Yes
Yes
Yes
Yes
Reinstall after removing obstacles
No
Are outdoor units installed correctly?
No
Reinstall after removing obstacles
Are indoor units installed correctly?
No
Check the connection status of the compressor
Is the compressor
connection line properly connected to the
compressor?
No
Resistance replacement
Are the values for R418
current sensing resistance within
19mΩ-21mΩ?
No
Open valves
Is service valve completely opened?
Yes
No
Compressor replacement
Is resistance value of the
different compressor phases
(U
V, V
W, W
U)
less than 2Ω?
(continued on the back)
Continue
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2008-10-22 17:04:04