Panasonic NA-148VB3WRU / NA-128VB3 / NA-147VB3 / NA-127VB3WRU Service Manual ▷ View online
33
11 Measurements and Adjustments
11.1. Drain Pump
Drain pump is both a mechanical and electrical component
which is used to drain water inside the washing machine. It has
an synchronous motor inside. For better performance mainte-
nance, pump filter should be cleaned regularly.
which is used to drain water inside the washing machine. It has
an synchronous motor inside. For better performance mainte-
nance, pump filter should be cleaned regularly.
11.1.1. Technical Features
11.1.2. Checking of Component
Check the resistance value on the component with multimeter
as shown in belows figures.
as shown in belows figures.
Resistance value should be between 131 - 141
Ω.
Checking the component
11.1.3. Component Controlling By Con-
nection Measurement
You can determine the ohm value by measuring from the blue
cable at 2nd and blue cable at 11th position in the large socket
(refer to 13 Wiring Connection Diagram) as shown in belows
figures.
Resistance value should be between 131 - 141
cable at 2nd and blue cable at 11th position in the large socket
(refer to 13 Wiring Connection Diagram) as shown in belows
figures.
Resistance value should be between 131 - 141
Ω.
Nominal voltage
220 - 240 V
Nominal current
0.28 A (±10 %)
Nominal power
37 W
Frequency
50 Hz
Resistor (coil)
136
Ω (±5 %)
Water flow:
17 L/min (to 1 m height)
Thermal protector
YES
34
11.2. Circulation Pump
The component is used for circulation of water inside the drum
in order to increase washing performance.
in order to increase washing performance.
11.2.1. Technical Features
11.2.2. Checking of Component
Check the resistance value on the component with multimeter
as shown.
as shown.
Resistance value should be between 160 - 180
Ω.
Checking the component
11.2.3. Component Controlling By Con-
nection Measurement
You can determine the ohm value by measuring from the red
cable at 5th and red cable at 12th position in the small socket
(refer to 13 Wiring Connection Diagram) as shown in belows
figures.
Resistance value should be between 160 - 180
cable at 5th and red cable at 12th position in the small socket
(refer to 13 Wiring Connection Diagram) as shown in belows
figures.
Resistance value should be between 160 - 180
Ω.
Nominal voltage
220 - 240 V
Frequency
50 Hz
Resistor (coil)
169,5
Ω (±5 %)
35
11.3. Resistance
Heating element (Resistance) is a component which is des-
ingned to regulate temperature of water inside the drum. It has
three connections: Phase, notral and ground connections.
ingned to regulate temperature of water inside the drum. It has
three connections: Phase, notral and ground connections.
11.3.1. Technical Features
11.3.2. Checking of Component
Check the resistance value on the component with multimeter
as shown in below pictures.
as shown in below pictures.
Checking the component
11.3.3. Component Controlling By Con-
nection Measurement
You can determine the ohm value by measuring from the grey
cable at 13th and brown cable at 4th position in the small
socket (refer to 13 Wiring Connection Diagram) as shown in
belows figures.
Resistance value should be between 23 - 27 Ohm.
cable at 13th and brown cable at 4th position in the small
socket (refer to 13 Wiring Connection Diagram) as shown in
belows figures.
Resistance value should be between 23 - 27 Ohm.
Kind of heating
Tubular heating element with NTC - sensor
Nominal voltage
230 V
Nominal power
2000 W (±5 %)
Resistance
24,8 ±5%
Ω (for NA-127VB3 and NA-147VB3)
25,2 ±5%
Ω (for NA-128VB3 and NA-148VB3)
Thermal fuse
2 - sided
36
11.4. NTC
Component which sends signals to PCB about the water tem-
perature inside the tub.
perature inside the tub.
The Resistance (Ohm) value of the NTC decreases as the tem-
perature increases.
perature increases.
11.4.1. Technical Features
NTC Tempure - Resistance Values
11.4.2. Checking of Component
Check the resistance value on the component with multimeter
as shown in below pictures.
as shown in below pictures.
Checking the component
11.4.3. Component Controlling By Con-
nection Measurement
You can determine the ohm value by measuring from the black
cable at 3th and black cable at 11th position in the small socket
(refer to 13 Wiring Connection Diagram) as shown in belows
figures.
NTC resistance value varies depending on temperature.
cable at 3th and black cable at 11th position in the small socket
(refer to 13 Wiring Connection Diagram) as shown in belows
figures.
NTC resistance value varies depending on temperature.
Tem (
°C)
R min (k
Ω)
R max (k
Ω)
-10
54,9
62,6
-5
43,0
48,6
0
33,9
38,1
5
27,0
30,1
10
21,6
23,9
15
17,4
19,1
20
14,1
15,4
25
11,5
12,5
30
9,4
10,2
35
7,8
8,3
40
6,4
6,9
45
5,4
5,7
50
4,5
4,7
55
3,8
3,9
60
3,2
3,3
65
2,7
2,8
70
2,3
2,4
75
1,9
2,0
80
1,7
1,8
85
1,4
1,5
90
1,2
1,3
95
1,1
1,1
100
0,9
1,0
Click on the first or last page to see other NA-148VB3WRU / NA-128VB3 / NA-147VB3 / NA-127VB3WRU service manuals if exist.