LG LMX25964 Series - Component Testing Information; Defrost Controller Assembly

11. COMPONENT TESTING INFORMATION
11-1 Defrost Controller Assembly
Function
How to
Measure
(Fuse-M)
How to
Measure
(Sensor)
Standard
Controller assembly is consist of 2 kinds of part those are fuse-m and sensor, we can
decide part is defect or not when we check the resistance.
Fuse-M can cut off the source when defrost heater operate the unusual high temperature.
Sensor give temperature information to Micom
Measure the 2 pin connected to Fuse-M.
If the ohmmeter indicate below O.1ohm
Fuse-M is good. If Fuse-M measures infinite
ohms, it is open and needs to be replaced.
Measure the 2 pin connected to Sensor.
If the ohmmeter indicate 11k;2(at room
temperature) It is normal.
Checking the resistance at other
temperatures, check the sensor resistance
chart.
Fuse-M (at all temperature)
Test Point Ressult
(1) to (2) 0 ~ 0.1
Sensor (at room temperature)
Test Point Ressult
(1) to (2) 11
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