Refrigerator Temperature Sensor - Ntc - Whirlpool Multibras ARC8140IX Service Manual

When the product is for the first time connected to the Electrical power supply and the initialization
routine was finished (See User Characteristics) the digital panel (LCD) will start with the factory pre-
selected temperatures:
•
Freezer = 3 dashes (then, –18
•
Refrigerator = +5
If the product is disconnected during its use, or lack of energy occurs, it will assume the last
function/programming done by the user when reconnected. When this lack of power makes the Freezer
and Defrost sensors temperatures upper than +20º C, the controls will assume the pre-selected factory
temperatures.
5.6.1. Refrigerator Temperature Sensor – NTC
Located in the refrigerator compartment, attached on its support, in upper portion of the internal air duct,
the refrigerator Sensor is responsible for sending signs to the electronic control, which will command the
Refrigerator and Freezer fan motors functioning always simultaneously, that is, whenever they're
put in action by the refrigerator sensor, they will work together.
Note: Except after the first 5.8 minutes the product was connected to the electrical power supply (see
Initial Test Routine), they will work individually.
Its actuation range will follow the temperature selection indicated at the Refrigerator Control (LCD
Panel), which the Electronic Control Software will convert following the relation:
T (ºC)
-50,0 181117,9
-49,5 174753,7
-49,0 168634,8
-48,5 162751,1
-48,0 157092,7
-47,5 151650,2
-47,0 146414,9
-46,5 141378,0
-46,0 136531,5
-45,5 131867,6
-45,0 127378,7
-44,5 123057,8
-44,0 118898,1
-43,5 114893,0
-43,0 111036,3
-42,5 107322,0
-42,0 103744,5
-41,5 100298,2
-41,0 96977,9
MSEX0105i – Electronic No Frost Refrigerator Bottom Mount/ Dual Fan - Maestro High
o
C
R (Ω) T (ºC)
-25,0
-24,5
-24,0
-23,5
-23,0
-22,5
-22,0
-21,5
-21,0
-20,5
-20,0
-19,5
-19,0
-18,5
-18,0
-17,5
-17,0
-16,5
-16,0
o
C )
R (Ω) T (ºC)
35050,0 0,0
34012,7 0,5
33009,5 1,0
32039,1 1,5
31100,3 2,0
30192,0 2,5
29313,2 3,0
28462,8 3,5
27639,7 4,0
26843,1 4,5
26072,0 5,0
25325,5 5,5
24602,7 6,0
23902,9 6,5
23225,2 7,0
22568,9 7,5
21933,1 8,0
21317,3 8,5
20720,8 9,0
Refrigerator
Sensor
R (Ω) T (ºC)
8758,0 25,0
8532,5 25,5
8323,0 26,0
8114,7 26,5
7912,1 27,0
7715,3 27,5
7524,0 28,0
7337,9 28,5
7157,1 29,0
6981,2 29,5
6810,2 30,0
6643,9 30,5
6482,2 31,0
6324,9 31,5
6171,8 32,0
6023,0 32,5
5878,1 33,0
5737,2 33,5
5600,1 34,0
R (Ω)
2681,8
2623,7
2567,1
2511,9
2458,0
2405,4
2354,1
2304,0
2255,2
2207,5
2160,9
2115,5
2071,2
2027,9
1985,6
1944,3
1904,1
1864,7
1826,3
15