Panasonic NA-F70T1, NA-F70T1P, NA-F70H1, NA-F821H Service Manual

Order No. PHAT081002C3

(Revision : Nov. 2011)

Service Manual

Fully Automatic Washing Machine

NA-F70T1
NA-F70T1P
NA-F70H1
NA-F821H

© Panasonic Home Appliances (Thailand) Co., Ltd. 2008.
All rights reserved. Unauthorized copying and distribution
is a violation of law.

There are special components used in this equipment which are important for safety. These parts are marked by
in the Schematic Diagrams, Circuit Board Diagrams, Exploded Views and Replacement Parts List. It is essential that
these critical parts should be replaced with manufacturer’s specified parts to prevent shock, fire or other hazards. Do
not modify the original design without permission of manufacturer.

IMPORTANT SAFETY NOTICE

WARNING

The 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 within this service information by anyone
else could result in serious injury or death.

Product Colour

Silver (A)

White (D)

Destination

Thailand, Indonesia, Vietnam, Malaysia, India

Singapore (Local), Singapore (Export)

Fiji, Philippines, Tahiti, UAE (ONE)

Kuwait, Oman, Qatar, UAE (PGF)

- 2 -

CONTENT

Page

3
4
5
6

7
8
8
8

9

10

11
11

12
13
14

15

16 - 17

18
19
20
21
22
23
24
25
26
27
28
29

1. Attention in the Repair Work Security

2. Specifications

3. Features and Technical Information

3.1 Function Control with Fuzzy sensor

4. Installation

4.1 Checking of placement

4.2 Connect the water supply hose

4.3 Install Washing Machine to steady

4.4 Child Lock program

5. Operations Panel

5.1 NA-F70T1 / NA-F70T1P

5.2 NA-F70H1 / NA-F821H

6. Wiring Diagram

6.1 NA-F70T1 / NA-F70T1P

6.2 NA-F70H1 / NA-F821H

7. Table of Errors

7.1 Case of buzzer alarm

7.2 Error Indication

7.3 Setting after U11 happen

8. Troubleshooting

8.1 Table of Troubleshooting

8.2 The following symptoms are not trouble

9. Parts Exploded View and Replacement Parts List

9.1 Parts Exploded View : Part A

9.2.1 Replacement Parts List : Part A of NA-F70T1 / NA-F70T1P

9.2.2 Replacement Parts List : Part A of NA-F70H1 / NA-F821H

9.3 Parts Exploded View : Part B

9.4.1 Replacement Parts List : Part B of NA-F70T1 / NA-F70T1P

9.4.2 Replacement Parts List : Part B of NA-F70H1 / NA-F821H

9.5 Parts Exploded View : Part C

9.6.1 Replacement Parts List : Part C of NA-F70T1 / NA-F70T1P

9.6.2 Replacement Parts List : Part C of NA-F70H1 / NA-F821H

9.7 Parts Exploded View : Packing Part

9.8. Replacement Parts List : Packing of NA-F70T1 / NA-F70T1P / NA-F70H1 / NA-F821H
Detail Change Notice

NA-F70T1 / F7OT1P / F70H1 / F821H

Usage : For repair and change of spare part only for washing machine type

Panasonic Model NA-F70T1 / NA-F70T1P / NA-F70H1 / NA-F821H

Instruction
for usage

: The work repair and changing of space part should be operated by a
skilled technician from the distribution agents, or Panasonic’s standard
service center.

Warning : Switch off electrical power before commencing work to avoid a

potential short circuit or injury.

- 3 -

1. ATTENTION IN THE REPAIR WORK SECURITY

In order to prevent any accident during repair work and ensure security of the product after repair work,
somethings surely followed are explained below.

Connectionof cables should be done according to regular work.

• Connection of cables should be tightened reliably with strength using solderless terminal.
(specified parts always using regular bonding plier)

• Install a fire protection cover (fireproof) covering connectin area completely, and close opening
areas by tape. (Please reuse the fire protection cover which came with the products).

• When drawing cables around, fixing those cables with cable suppression part. Do not touch
rotating part, high temperature part and surface of metal.

• Be sure to replace with cable unit when any cable was snapped. When a part of the cable unit
was cut, you must not do the connection repair. It may be the cause of smoke, ignition or
receiving an electric shock.

Please wear gloves when disassembling, replacing and assembling.

Always wear gloves to prevent an injury by the metal end face or an electric shock at the time of
the electricity service

Please be careful to the edges of the metal end face.

Wear the working clothes of long sleeves to prevent an injury by the metal end face or please
work after covering the end face with tape or towel.

Be careful about receiving an electric shock.

When doing electric connection service
such as voltage measurement, please be
careful enough about receiving an electric
shock at electric charging parts and cable
terminal parts.

■ The level of the arised damages or dangers, when indicated contents are ignored, are classified by

following indications and explained.

WARNING

ATTENTION

The content in the column of this indication is
“ Be assumed that possibly die or get seriously injured ”.

This figured symbol means caution “ ATTENTION ”

This figured symbol means must not do “ PROHIBITION ”

This figured symbol means surely execute “ INSTRUCTIONS ”

The content in the column of this indication is
“ Be assumed that possibly get damages or possibly only damage object occured ”.

■ Types of the contents being followed are classified by following figured symbols and explained.

(The following is an example of expression in pictures)

WARNING

Pull out electric plug when doing repair work.

Disassembling, assembling and replacing
parts should be done after pulling out
electric plug. Receiving an electric shock
or getting an injury may occur.

Rebuilding is prohibited.

Do not rebuild machine parts and
components when repairing service.
It may be the cause of damage or ignition.

Straightly pull out or insert in huasuton terminal.

Do not twist it. It may be the cause of
damage or ignition.

Slow rotation may also roll in your hands
and cause injury.

Be sure to use specified parts.

Always use specified parts for the parts
with mark in the electric circuit
diagrams and parts list. It may be the
cause of smoke, ignition or damage.

Do not touch any rotating object with hand
unless it stops completely.

ATTENTION

NA-F70T1 / F7OT1P / F70H1 / F821H

- 4 -

2. SPECIFICATIONS

Model NA-F70T1 NA-F70T1P NA-F70H1 NA-F821H

Rate voltage 220V/50Hz

Singapore (Export),

UAE (PGF)

Thailand, Vietnam,

Singapore (Export),

Fiji, UAE (PGF)

Vietnam,

Singapore (Export),

Fiji

Thailand, Vietnam,

Sin-RBD

Singapore (Local),

India

Singapore (Local),

India

Malaysia, UAE (ONE),

Oman, Qatar

390W / 230W

400W / 240W

410W / 250W

430W / 280W

155 Liter

7 Kg

32 Kg

110 r / min

765 r / min

37 Kg

0.03 to 1 MPa (0.3 - 10 Kgf / cm2)

Motor

Input : 320 Watts / Output : 180 Watts

Checking Unbalance / Tub Lid

Rings when finishing washing or unusual

Have

Have

Have

Have

White (D) White (D) Silver (A) Silver (A)

Philippines, Tahiti

UAE (ONE),

Kuwait, Qatar, Oman

UAE (ONE),

Kuwait, Qatar

and Frequency

230V/60Hz

230V/50Hz

240V/50Hz

230V/60Hz

230V/50Hz

220V/50Hz

240V/50Hz

Colour

Rate Power

Consumption

(Wash / Spin)

Standard Water Consumption

Standard Capacity

Weight (with accessories)

Pulsator (r.p.m.)

Spin Tub (r.p.m.)

Water Pressure

583 x 572 x 980 (mm)

External Dimension (W x D x H)

Net Weight

Thermal Protector

Motor Power

Safety Switch

Alarm

Water Inlet Hole

Fabric Softener Dispensor

Have

Filter

Automatic Power - Cut Switch

Bleach Dispenser

Standard Water Volume

Model : NA-F70T1 / NA-F70T1P / NA-F70H1 / NA-F821H

High

Medium

Low 1
Low 2
Low 3

<Lower 3 Lower>

Wash Level Water Only Clothes Weight

56 Liters
45 Liters

35 Liters
25 Liters
18 Liters

16 Liters

7.0 Kgs

3.5 Kgs

2.0 Kgs

1.0 Kgs

0.5 Kgs

0.3 Kgs

51 Liters
41 Liters

33 Liters
24 Liters
18 Liters

16 Liters

NA-F70T1 / F7OT1P / F70H1 / F821H

- 5 -

3. FEATURES AND TECHNICAL INFORMATION

NA-F70T1 / NA-F70T1P

Product special features

• Pre-wash weight sensor

• Dial indicating detergent level after sensing wash level

• Pre-set timer

• Fabric softener dispenser

• Detergent dispenser

• Automatic power-off when finish

• Dial indicating unusual sign (LED will blink)

• Overflow sensing device

• Dial indicating time remaining

High Medium Low

Low Pulse Number High

Weight Sensor

The weight is sensed by the moving force of the Pulsator,
which changes a capacitor pole and releases a signal wave.
The wave is changed into a pulse number from which the
clothes weight is sensed. Prior to weight sensing for Normal
and Strong program, the machine runs without water by
spinning the Pulsator to left and right for 4.2 seconds
(ON 0.3 second- OFF 0.4 second).
The motor stops (OFF), a water system counts the pulse
number, then calculates the accumulated pulse numbers for
drawing water into the tub over a defined level. The dial will
indicate High wash level.

Program Time

Normal

Speedy

Delicate

Tub Dry

Soak 1 hour

Soad 3 hour

Soak 8 hour

Approx. 40 - 59 min

Approx. 21 - 37 min

Approx. 24 - 29 min

Approx. 36 min

Approx. 100 - 119 min

Approx. 219 - 238 min

Approx. 511 - 530 min

NA-F70H1 / NA-F821H

Product special features

• Pre-wash weight sensor

• Dial indicating detergent level after sensing wash level

• Pre-set timer

• Fabric softener dispenser

• Detergent dispenser

• Automatic power-off when finish

• Dial indicating unusual sign (LED will blink)

• Overflow sensing device

• Dial indicating time remaining

Program Time

Normal

Mini

New Speedy

Blanket

Delicate

Tub Hygiene

Soak 1 hour

Soad 3 hour

Soak 8 hour

Approx. 46 - 60 min

Approx. 15 min

Approx. 37 - 53 min

Approx. 47 - 55 min

Approx. 23 min

Approx. 150 min

Approx. 61 min

Approx. 179 min

Approx. 471 min

NA-F70T1 / F7OT1P / F70H1 / F821H

- 6 -

3.1 Function Control with Fuzzy sensor

Clothes quantity checking, wash level indication and detergent consumption indication with Fuzzy Logic
System.

1. Check clothes quantity and specify the amount of
detergent

1. Wash timer and spin timer with checked clothes quantity

2. Additional wash timer and spin timer as temperature
increases

<Motor status>

Turn Switch “ON”

Press “Start” button

1. Check clothes quantity

2. Check ambient
temperature

A. Check clothes
quantity
B. Control wash time
C. Control spin time

Supply water to a proper
level

WASH

RINSE

SPIN

Switch will automatically
cut the power current
“OFF”

Spin Timer +0 min. +1 min. +2 min. +0 min.

Wash Timer +0 min. +2 min. +3 min. -1 min.

External temp. 25°C 15°C 5°C 30°C

High

3.0 Kg and more

Medium

1.2 Kg~3.0 Kg

Low

0 Kg~1.2 Kg

Wash Timer 12 min. 12 min. 9 min.

Spin Timer 6 min. 6 min. 5 min.

2. Temperature checking

Check temperature in the atmosphere when the machine
starts. In case of low temperature, wash timer and spin timer are
extended automatically so that washed clothes are as clean as
washing in high temperature.

<Checking Method>
Check cross pressure at the
capacitor while the Pulsator operates
without water.

Rotate clockwise

stop

Rotate
anti-clockwize

stop

Rotate clockwise

stop

Rotate
anti-clockwize

stop

Rotate clockwise

stop

Rotate
anti-clockwize

stop

NA-F70T1 / F7OT1P / F70H1 / F821H

- 7 -

4. INSTALLATION

4.1 Checking of placement

NA-F70T1 / F7OT1P / F70H1 / F821H

Connect the water supply hose
to the water supply valve screw.

1. Push the water supply hose nut straights onto
the water supply valve screw.

2. Hold the elbow by lifting it up, screw the nut
onto the water supply valve screw, and firmly
tighten the nut.

3. After the nut is tightened, check whether or
not the elbow is unsteady or loose.

4. After tightening, open the faucet to confirm
that there is no water leakage.

[Cautions]

Firmly tighten the nut, otherwise water leakage
will result.

Water Pressure Rating :

2.9 x 10

4

~ 9.8 x 105 Pa

Hose extension

If extended external part is necessary when connecting the drain hose, the length of the drain hose should be less
than 3 m and the height should be below 10 cm.

Elbow

Water supply
valve screw

Nut

Water Supply

Hose

Drain hose

3 m max.

Do not put hose tip
under the water

Over 10 cm

Install the machine 10 cm or more away from the wall.

Good Example

Below 10 cm

- 8 -

4.2 Connect the water supply hose

[Note]

- Firmly tighten part B of the water tap adaptor,
otherwise water leakage will result.

- If a water tap adaptor is already connected,
replace with the attached new one.

- When the hose must be reinstalled (after you
remove, for example), turn B to the lelt until
about 4 mm of the thread becomes visible,
then carry out the procedure described above.

4.4 Child Lock program

Press the [POWER OFF/ON] button for at least
5 seconds. The buzzer sounds (two time for
setting) and the [CHILD LOCK] indication turns
on.

Open lid

Close lid

Buzzer on

Buzzer off

Water drain

Buzzer on and
abnormal alarm

Unplug the power
cord from the
outlet and re-plug
it again after
5 seconds

Less than
10 sec.

More than
10 sec.

Water faucet

Water supply
hose cover

A

B

Screw (4)

Water tap
adaptor

Lever

Approx. 4 mm

B

4.3 Install Washing Machine to steady

1. Turn the adjustable leg knob towards (Loosen)
direction to loose it.

2. Turn the adjustable leg to adjust the levelness.

2.1 When increasing height, turn adjustable leg
towards (Loosen) direction.

2.2 When decreasing height, turn adjustable leg
towards (Tighten) direction.

3. Turn the adjustable leg knob towards (Tighten)
direction to tighten it.

If the floor is largely inclined

Use board or
a like for prop
up under leg
of washing
machine

Adjust Height of leg

Adjustable leg knob

Adjustable leg

Loosen

To raise

To lower

Tighten

NA-F70T1 / F7OT1P / F70H1 / F821H

- 9 -

5. OPERATIONS PANEL

5.1 NA-F70T1 / NA-F70T1P

Fuzzy logic control is used to recommend the proper water level and amount of detergent for

the amount of laundry being done.

Caution: If you need to change the [PROGRAM] and [SOAK] settings after the cycle has already started,

turn the power off and on it back.

RESERVE

• You can choose the finishing time to 9 hours.

SOAK

• Operations course for heavily washed laundry.

• You can adjust soak time based on the

condition of dirt.

• You can choose your soak time from 1, 3, or

8 hours.

OFF/ON

• The power automatically turns off when total

operations is finished.

• The power automatically turns off if [START/

HOLD] button is not pressed within 10

minutes after turning on the power.

PROCESS

• Press to select WASH only, WASH and RINSE

or other individual functions.

WATER LEVEL

(Water volume display)

• The appropriate WATER LEVEL for the size

and type of your laundry will be displayed.

• You can adjust the WATER LEVEL according

to your desired level.

START/HOLD

• Press this to start.

• Press this to stop in the middle of the cycle.

PROGRAM (Course Select)

• According to type of laundry and stain, you

can select suitable course yourself.

NA-F70T1 / F7OT1P / F70H1 / F821H