Sensors - Ariston MSZ 701 NF HB (T) Service Manual

4-3. Sensors

1) Circuit Diagram
2) Function of Each Sensor
[ F-sensor ]
1) It senses the temperature of freezer compartment and controls Comp., F-fan ON / OFF.
2) How it works ;
Working Point
Working Temp.
Resistance
Sensing Voltage
[ D-sensor ]
It senses return point of defrosting heater.
Working Point
Working Temp.
Resistance
Sensing Voltage
[ R-sensor ]
1) It senses the temperature of refrigerator compartment and controls R-fan ON / OFF.
2) How it works ;
Working Point
Working Temp.
Resistance
Sensing Voltage
Low ON Mid OFF
-13.0 -21.0
C
15.30k 23.83k
3.14 V 2.60 V
Return point of defrosting heater
10
19.53k
3.1 V
Low ON
4.30
C
24.56k
2.82V
36
CIRCUIT OPERATION
High OFF
- 27.0
C
32.74k
2.20 V
C
Mid OFF High OFF
1.3
C
27.95k 30.37k
2.66V
C
-0.7
C
2.55V