Panasonic NA-127VB6WAE User manual

1
Order No. ??
Service Manual
Drum Type Washing Machine
Model No.
NA-127VB6WAE/WAS/WPG
Product Color
:
White
Destination
:
IRAN, OMAN, UAE
WARNING
This service information is designed for experienced repair technicians only and is not designed for use by the general public. It
does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service
or repair the product or products dealt with in this service information by anyone else could result in serious injury or death.
All the components used in this equipment are important for safety. These parts are marked by a
in the Schematic Diagrams,
Circuit Board Diagrams, Exploded Views and Replacement Parts List. It is essential that the parts should be replaced with
manufacturer’s specified parts to prevent shock, fire or other hazards and lack of performance. Do not modify the original design
without permission of manufacturer.
TABLE OF CONTENTS
1.Safety Precautions --------------------------------------------------
2
7. Service Mode --------------------------------------------------------------
12
2.Specifications ---------------------------------------------------------
3
7.1. Service Autotest -------------------------------------------------
12
2.1.Product Specifications ---------------------------------------
3
7.2. Failure Codes -----------------------------------------------------
13
2.2.Name Plate -----------------------------------------------------
3
8. Troubleshooting Guide ------------------------------------------------
13
2.3.Dimensions -----------------------------------------------------
4
9. Critical Torque Values --------------------------------------------------
15
3.Location of Controls and Components ----------------------
5
10. Disassembly and Assembly Instructions ----------------------
16
4.Installation Instructions -------------------------------------------
6
11. Component Specifications ------------------------------------------
26
4.1.Moving and Installing ----------------------------------------
6
11.1. Drain Pump ------------------------------------------------------
26
4.2.Detergent Box Group ----------------------------------------
7
11.2. Heater -------------------------------------------------------------
27
5.Operating Instructions ---------------------------------------------
8
11.3. NTC ----------------------------------------------------------------
28
5.1.LCD Screen, Function Buttons & Knobs ---------------
8
11.4. Valve ---------------------------------------------------------------
29
5.2.Program Details -----------------------------------------------
9
11.5. Electronic Pressure Switch (EPS) --------------------------
30
5.3.Child Lock ------------------------------------------------------
10
11.6. Motor ---------------------------------------------------------------
31
6.Test Mode --------------------------------------------------------------
10
11.7. Door Lock ---------------------------------------------------------
32
6.1.Autotest ---------------------------------------------------------
10
11.8. Circulation Pump--------------------------------------------
33
12. Wiring Diagram ---------------------------------------------------------
34
13. Exploded View and Spare Parts List -----------------------------
36
© Panasonic Corporation 2015 Unauthorized copying
and distribution is violation of law.
IMPORTANT SAFETY NOTICE

2

3
2. Specifications
2.1. Product Specifications
Model
NA-127VB6
Product Type
Front Loader
Capacity
7 kg
Max Spin Speed
1200 rpm
Drum Volume
50 lt
Energy Label Rating
A+++
Energy Consumption
162 kWh / annum
Water Consumption
9240 L / annum
Noise Level
Wash
58 dBA
Spin
74 dBA
Control Panel
LCD Display
Wash Programs
15 settings
Spin Speed Setting
7 setting
Dimensions
Height
84,5 cm
Width
59.7 cm
Depth
52.7 cm
Door Opening
Large door opening
Delay Time Setting
Yes
Colour
White
Water Protection
Overflow Protection
Other Features
Child Lock
Packaging
Shrink package
2.2. Name Plate

4
2.3. Dimension in millimetres
NA-127VB6

5
3. Location of Controls and Components

6
4. Installation Instructions
4.1. Moving and Installing
4.1.1. Removal of Transportation Screw
1. 1. Transportation screws, which are located at the back side of
the machine, must be removed before running the machine.
2. 2. Loosen the screws by turning them anticlockwise with a
suitable spanner.
3.
4.1.2. Foot Adjustment
1. 1. Do not install machine on rugs or similar surfaces.
2. 2. For machine to work silently and without any vibration, it should be
installed on a flat, non-slippery firm surface. Any suspended floor
must be suitably strengthened.
3. 3. You can adjust the level of machine using its feet.
4. 4. First, loosen the plastic adjustment nut away from the cabinet
base.
1. 5. Change the level by adjusting the feet upwards or downwards.
2. 6. After level has been reached, tighten the plastic adjustment nut
again by rotating it upwards against the base of the cabinet.
3. 7. Never put cartons, wooden blocks or similar materials under the
machine to balance irregularities of the floor.
5.
3. Pull out the screws and rubber washers.
4.1.3. Electrical Connection
1. 1. Washing machine requires a 50Hz supply of 220-240Volts.
2. 2. A special earthed plug has been attached to the supply cord of
washing machine. This plug must be fitted to an earthed socket. The
fuse value fitted to this plug should be 13 amps. If you have any
doubts about electrical supply, consult a qualified electrician.
THIS APPLIANCE MUST BE EARTHED.
Insert the machine’s plug to a grounded socket which
you can easily reach.
4.
4. The holes where the transport screws have been removed
should be covered with the plastic transport caps found in the
accessories bag.
5. The transportation screws that have been removed from the
machine must be re-used in any future transporting of the
machine.

7
4.1.4. Water Supply Connection
1. 1. Washing machine is supplied with a single (cold) water inlet.
2. 2. To prevent leakage from the connection joints, a rubber
washer is included in the hose packing. Fit this washer at the
end of water inlet hose on the tap side.
3. 3. Connect the hose to the water inlet valve. Tighten the plastic
connector by hand. Please call a qualified plumber if you are
unsure about this.
4. 4. Water pressure of 0,1-1 MPa from tap will enable machine to
work more efficiently.(0,1 MPa pressure means water flow of
more than 8 litres in 1 minute from a fully opened tap)
5. 5. After connection is complete, check for leakage by turning on
tap completely.
6. 6. Make sure that water inlet hoses cannot become folded,
damaged, stretched or crushed when the washing machine is in
its final position.
7. 7. Mount the water inlet hose to a ¾” threaded water tap.
5.
4.1.5. Drain Connection
1. 1. Make sure that water inlet hoses are not folded, twisted,
crushed or stretched.
2. 2. The drain hose should be mounted at a minimum height of 60
cm and a maximum height of 100 cm from the floor.
3. 3. The end of the drain hose can be connected directly to a
drainage stand-pipe or alternatively to a specific connection point
designed for that purpose on the waste outlet of a sink unit.
4. 4. Do not extend the drain hose or guarantee will be invalidated.
4.2 Detergent Box Group
PREWASH = WATER ENTRY VALVE 1
MAIN = WATER ENTRY VALVE 2
SOFTENER = WATER ENTRY VALVE 1 + VALVE 2
MAIN
SOFTENER
PREWASH
VALVE1
VALVE2
VALVE1

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5. Operating Instructions
5.1. LCD Screen, Function Buttons & Knobs
PR
Program selector 16 programs including off position
SW1
Switch 1, Start / Pause
SW2
Switch 2, Temperature Selection
SW3
Switch 3, Spin Speed Selection
SW4
Switch 4, Delay Timer Selection
SW5
Switch 5, Extra Rinse Option
SW6
Switch 6, Easy Ironing Option
SW7
Switch 7, Eco/Speed Mode Option
SS1
7 Segment LCD for Temperature Display
I8
Extra Rinse Symbol
SS2
7 Segment LCD for Spin Speed Display
I9
Easy Ironing Symbol
SS3
7 Segment LCD for Remaining Time
I10
Eco Mode Symbol
I1
Child Lock Symbol
I11
Speed Mode Symbol
I2
Door Lock Symbol
I12
Cold Wash Symbol
I3
Drain Phase Symbol
I13
Temperature Sign
I4
Spin Phase Symbol
I14
Program Proceeding Zone
I5
Rinse Phase Symbol
Slow Blink
ON 0.5 sec, OFF 0.5 sec, ON 0.5 sec
I6
Wash Phase Symbol
Fast Blink
ON 0.10 sec, OFF 0.10 sec, ON 0.10 sec
I7
Delay Symbol
SW1
SW2
SW3
SW4
SW5
SW6
SW7
PR
I6
I5
I4
I3
I2
I1
SS1
SS2
SS3
I7
I8
I9
I10
I11
I12
I13
I14

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5.2. Program Details

10
5.3. Child Lock
Activation
1. Press SW7 for 5 seconds.
2.
3.
4. The Child Lock Symbol on appears on the LCD display as Child
Lock is active.
5.
Deactivation
Press SW7 for 5 seconds.
The Child Lock Symbol will disappear on LCD display upon
deactivation.
6. Test Mode
6.1. Autotest
1.
2. Set PR to program 3 (Colours)
3.
4. While pressing SW5 (Extra Rinse), change position of the PR from
third program to second (Cotton-Prewash), and release SW5.
5.
6.
7.
8.
9. Autotest starts.
10.

11
Time in seconds (to be adjusted)
Entering autotest
Changing power to 220 50Hz
Main Voltage 50 Hz
Door Lock Powered (Depends on door lock)
Motor Ramp to max spin (max. is 15 sec.)
Time until motor is stopped (Depends on the motor stop time)
Motor Preferred Run (Direction to Right)
Motor Inverse Run (Direction to Left)
EV1 (flowrate dependent of washer)
EV2 (flowrate dependent of washer)
Test stopped until E.Rinse button is pressed (symbol blinking)
EV1 + EV2 valves up to autotest level frequency (Depends on the water level)
NTC check
Heather resistance
Pump
EPS measurement
End Visualization
65
55
35
15
50
60
5
10
25
40
AUTOTEST
If temperature value is outside the range, then it means NTC is detecting the temperature in a wrong way and heating step will be skipped.
EPS measurement:The frequency value should be between 46.04Hz - 43.40Hz.It checks the EPS and if it OK, it continues the autotest; if it is NOK then cancel the Autotest and go to the selection mode. Also
if any frequency can not be detected, then it mean
20
30
Ntc detection : Software will detect NTC's resistance value and will check if the temperature is between 5°C < Tdetected < 40°C. If it is inside the range, heating step will be done.
45

12
7. Service Mode
7.1. Service Autotest
1. Set PR to program 3 (Colours) and press SW2 (T°C)
1. 2. While pressing the SW2, change PR position from third to
second, and release the SW2 button.
2.
3. Bring PR to desired test step (1st 2nd or 3rd program position) as soon as “SAU” is displayed on LCD.
LCD Display status:
I2 Door Lock Symbol -> Fixed on
SS3 -> SAU
11.
Step1
Step 2
Step 3
PR Position:
Program 1
(Cotton)
PR Position:
Program 2
(Cotton Prewash)
PR Position:
Program 3
(Colours)
Result
Result
Result
HEATER ON
PUMP ON
TEST PROGRAM
ON (Rapid 12’)
Comments :
When entering in
service test, door
will be locked.
Test is over
Door will be
unlocked, machine
will go to END state.
The test steps are as below ;
Step 1:
Selector Program 1 (Cotton) will be “HEATER ON”
Before heating it should take water till first level frequency then
start heating.
Heater will be on max. 8 minutes after this 8 minutes if the temp.
doesn’t change more than 2°C then it will give NTC failure.
(E05).
Or if the NTC connection is broken then it should give again E05
NTC failure.
At the end of heating, “SAU” visualization should make slow
blink to indicate that the step is over.
Note: If user changes the selector position, machine will do what
is defined for the new selected position.
Step 3:
Selector position 3 (Colours) will be a 12 mins test program where all
functions of the appliance will be checked.
Machine will make exactly the same algorithm of Super Rapid 12'.
So, time for selector position 3 is 12 minutes.
At the end of test program “End” is visualized on LCD and door is
unlocked.
Step 2:
Selector Program 2 (Cotton Prewash) will be “PUMP ON”
Temperature will be measured, if it is higher than 50 °C, it should
take 60 sec. cooling water, and then make “Drain + 5 sec.”
At the end of pump activation, “SAU” visualization should make
slow blink to indicate that the step is over.

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7.2. Failure Codes
Error Indication
Error Number
Indication For User
Indication For Service
Yes/No
Yes/No
Door is not locked
E01
Yes
Yes
Door is unlocked during programme
E01
Yes
Yes
Lack of water
E02
Yes
Yes
Pump failure
E03
Yes
Yes
Overflow
E04
Yes
Yes
NTC or Heater Failure
E05
No
Yes
Motor Failure - 1 (Tachometer open-short circuit or
motor connector is disconnected)
E06
No
Yes
Motor Failure - 2 (triac short circuit)
E08
No
Yes
Electronic Pressure Sensor
E10
No
Yes
8. Troubleshooting Guide
All repairs which must be done on the machine should be done by authorized agents only. When a repair is
required for machine or you are unable to eliminate the failure with the help of the information given below:
Unplug the machine.
Close the water tap.
FAILURE
PROBABLE CAUSE
METHODS OF ELIMINATION
Machine does not
operate.
It is unplugged.
Insert the plug into the socket.
Fuse is defective.
Change fuse.
Start / Pause button has not been
pressed.
Press the start / pause button.
The program knob is in 0 (off)
status.
Bring the program knob on the desired status.
The door is not shut properly.
Shut the door properly. You should hear the
click.
Child lock is active.
See section 5.5.
Machine does not
receive water.
Water tap is closed.
Open water tap.
The water inlet hose may be bent.
Check the water inlet hose.
The water inlet hose is obstructed.
Clean the filters of water inlet hose.
The water inlet filter is obstructed.
Clean the valve inlet filters.
The door is not shut properly.
Shut the door properly. You should hear the
click.
Machine is not
draining water.
The drain hose is obstructed or
bent.
Check the drain hose.
The pump filter is obstructed.
Clean the pump filter.
The clothes are not placed inside
the machine in a well-balanced
manner.
Spread the clothes inside the machine in an
orderly and well-balanced manner.
Machine is
vibrating.
The feet of machine are not
adjusted.
Adjust the feet.
Transportation screws are not
removed.
Remove transportation screws.
There is a small amount of clothes
in the device.
It does not prevent operation of the machine.
Excessive amount of clothes are
filled in the machine or the clothes
are not placed in a well-balanced
manner.
Do not exceed the recommended quantity of
clothes and spared clothes in the machine in a
well-balanced manner.

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FAILURE
PROBABLE CAUSE
METHODS OF ELIMINATION
Excessive foam in
the detergent
drawer
Too much detergent has been
used.
Press the start/pause button. In order to stop
the foam, dilute one table-spoon of softener in
half liter of water and pour it in the detergent
drawer. Press the start/pause button after 5-10
minutes. Arrange the amount of the detergent
properly in the next washing process.
Wrong detergent has been used.
Use only the detergents produced for full
automatic machines.
The washing result
is bad.
Laundry too dirty for the program
you have selected.
Select a suitable program.
The amount of detergent used is
not sufficient.
Use more detergent according to the
detergent.
The washing result
is not good.
Clothes exceeding the maximum
capacity have been filled in
machine.
Put the clothes in machine in a manner not to
exceed its maximum capacity.
Water may be hard.
Use the amount of detergent according to the
declaration of the detergent producer.
Distribution of the clothes in
machine is not well-balanced.
Spread the clothes inside the machine in an
orderly and well-balanced manner.
The water is seen
in the drum during
washing.
No failure. The water is at the lower
part of the drum.
There are residues
of detergent on the
clothes.
The pieces of some detergents
which do not dissolve in water may
stick to clothes as white stains.
By calibrating machine for “Rinsing” program,
make an additional rinsing or eliminate the
stains After drying with the help of a brush.
There are grey
stains on the
clothes.
These stains may be caused by oil,
cream or ointment.
In the next washing operation, use the
maximum detergent amount declared by the
detergent producer.
The spinning
process is not done
or starts with delay.
No failure. The unbalanced load
control works in that way.
The unbalanced load control system will try to
distribute clothes in a homogenous manner.
After clothes are distributed, passage to
spinning process will be realized. In the next
washing process, place clothes into the
machine in a well-balanced manner.
9. Critical Torque Values
Assembly Locatıon
Bolt/Nut
Torque Min.
(Nm)
Torque Nom.
(Nm)
Torque Max.
(Nm)
Air Pressure
Wrench (rpm)
*
Transport Screw Assembly
Transport Screws
6.50
6.50
7.00
1000
*
Motor Assembly
Motor Screws
6.00
6.50
7.50
800
*
Front Concrete Weight - Front Tub
Assembly
Front Counterweight Screws
14.00
14.50
14.75
600
*
Upper Counter Weight Assembly
Upper Counter Weight Screws
25.00
27.50
30.00
440
*
Pulley –Drive Shaft –Washing Group
Assembly
Pulley –Drive Shaft Assembly
Bolt
39.50
40.00
40.50
440
*
Heater Assembly
Heater Assembly Nut
3.85
4.00
4.00
970
The bolts/nuts above are important for product safety purposes. Please tighten screws, bolts and nuts according to the torque values given
in table above.

15
10. Disassembly and Assembly Instructions
10.1. Top Plate
1
2
Remove two screws that fix the top-plate at the back
Push the top-plate back and pull it up
10.2. Door
1
2
Remove two screws that fix the door by using T25 tool
Pull up the door
3
4
Remove screws that fix the door group
Put the door outside plastic with helping screwdriver
5
6
Remove the door inside plastic
Remove six screws that fix the door hinge
T25

16
7
8
Remove the door handle
Remove the door handle pin
10.3. Spring Wire
1
2
First remove the spring wire fixing the tub bellows seal
by using the small size screw driver. Pull the tub bellows
seal
Remove the tub bellows seal-body fixing spring
10.4. Detergent Drawer
1
2
Gently pull the detergent drawer
While pressing siphon cover keep pulling drawer to remove
it
10.5. Control Panel
1
2
Remove the screw which fixes the control panel to the
front panel
Remove two screws fixing control panel

17
3
Pull the control panel out
10.6. Electronic Card
1
2
Depress the taps fixing the card by using a screwdriver
Release the socket fixing plastic by depressing the taps with
the help of a screwdriver
3
4
Remove the card out off panel
Remove the sockets on the card
5
6
After releasing sockets, remove PCB box from its housing
around the box
Disassemble the PCB box and its cover
7
8
Remove the PCB card by depressing the taps that fix it
Remove the connector that fixes the LCD screen

18
9
10
Remove the card from its housing and unplug its connector
Remove the LCD screen by depressing the taps by using a
screwdriver
10.7. Front Panel
1
2
Remove the screw fixing the front panel at the bottom
Remove two screws fixing the door lock
3
4
Remove the tub bellows seal
5
6
Remove two screws fixing front panel to body
Pull up front panel
7
8
Remove front panel

19
10.8. Support Bracket
1
Remove two clips fixing detergent drawer housing to
upper support bracket
10.9. Detergent Drawer Housing
1
2
Remove the tub bellow hose by releasing the holder
extensions of bellow hose
Unplug connectors from feed valve
3
4
Slightly turn the feed valve counter-clockwise to remove
Remove the detergent drawer housing assembly
10.10. Power Cable Group and EMI Filter
1
2
Remove the five connectors those are connected to the
EMI filter
Remove two screws fixing EMI filter

20
3
4
Pull up the power cable group
Remove EMI filter
10.11. Electronic Pressure Switch (EPS)
1
2
Unplug EPS connector
Pull up EPS
10.12. Door Lock
3
1
Remove clamp from EPS hose
Unplug door lock connector
10.13. Drain Pump
1
2
Remove clamp holding drain hose by using a plier
Remove clamp fixing tub outlet hose