6
2.5
Thermistor Sensors Resistance Table
Temperature (
O
C)
Resistance
(K Ohms + 5%)
-30.0
25.17
-25.0
19.43
-20.0
15.13
-15.0
11.88
-10.0
9.392
-5.0
7.481
0.0
6.000
5.0
4.844
10.0
3.935
15.0
3.217
20.0
2.644
25.0
2.186
30.0
1.817
35.0
1.518
40.0
1.274
45.0
1.075
50.0
0.9106
2.6
FC Fan
The fan is a 240v shaded pole motor. The fan cycles with the compressor but
remains on when the door is opened.
2.7
Defrost Heater
A 230/240V, 350watt heating element positioned beneath and around the FC
evaporator is used to defrost the ice accumulated on the evaporator.
There are two thermal fuses mounted in the wiring harness of the defrost element,
having a tripping temperature of 72
O
c. Once open circuit they cannot be reset.
Replacement is part of the element heater assembly.
These fuses in both leads of the element protect the refrigerator from any over
heating through failure of the element itself or a triac failure in the control module.
Both sides are protected in case polarity is reversed.
NOTE: Care should be taken if manually defrosting the evaporator if using heat
guns, that the thermal fuses are not over heated.
In normal conditions the defrost period is terminated by the control module when the
FC evaporator sensor (defrost sensor) r8
O
C.
