Troubleshooting
Samsung Electronics
51
IPM over current error (Error Code : E464) (cont.)
Yes
Turn off the power and change the location
of the temperature sensor or replace it
No
Is the location and
measured value of the
temperature sensor normal?
Check the connection of the compressor
No
Are the compressor
wires correctly connected to
the compressor?
Yes
1. Change the compressor: When the resistance
value between phases of the compressor is
different
o
Turn the power on
o
Check for
normal operation
o
End service
2. Reassemble wire: When the wire connection of
the compressor is wrong
o
Turn the power on
o
Check for normal operation
o
End service
3. Change the compressor: When loud abnormal
noise generates (such as metal grinding), or
severe vibration
No
Check the compressor
1. Is resistance value between phases of
the compressor same? (U
l
V, U
l
W, V
l
W)
2. Is the wire connected to compressor normal?
(disconnection, wrong connection)
3. Is there any noise when
the compressor rotates?
Yes
Change the compressor
No
Yes
Is the resistance between
compressor body and chassis MegaΩ?
Open the valve
No
Is the service valve completely open?
Cont.
Cont.
