Cozzia EC-326G-CO Manual

Maintenance Service Manual

MODEL: EC-326G-CO

By Customer Service Department

1. Precautions for inspection and repair

Inspection

Verify that the power cord is tightly connected on the machine.

Be careful to avoid electric shock.

Repair

Power off the supply before repair work begins.

Keep things tidy and in order during repair work.

When changing more than one part, identify the parts that are damaged and reuse the

serviceable parts.

During the dismantling or assembling process, do not damage other parts and PCB.

Be on the alert for loose or disconnected connectors during repair.

Do not leave any screws or other foreign objects in the unit after it is assembled.

Carry out test operation of the machine after the repair work is done.

It is preferable to perform the repair work on a carpet to prevent scratching or dirtying the

unit.

Clean the workplace after repair work is completed.

2:massage chair auto-check list

ON/OFF: KNEAD + TAP + POWER(buttons on the controler), press and hold the three buttons in two

senconds to turn on the automatic analysis system model.

After activating the "auto-checking model", the display screen of the controller keeps flashing; if

there is something wrong with the chair, the time area will show you the exact code of the

malfunction, meanwhile the buffer will make noise.

Code

Phenomenon

Malfunction description

Solutions

Remarks

remote control

tested any key

pressed more

than 25 seconds

1.one of the KEY has been

blocked.

1.check the key of the

remote control

turn on the

chair

remote control did

not connected

1.the remote control wire

is broken or the remote

control wire is

disconnected

1.reconnecte the

remote control wire or

change the remote

control wire.

turn on the

chair

backrest signal is

abnormity

1.backrest wire(black) is

not well connected.

2.up & down limit sensor

is broken

1.check whether the

backrest wire(black) is

well connected

2.change the up &

down limit sensor

turn on the

chair

backrest signal is

abnormity

1.backrest wire(black) is

not well connected.

2.the counting sensor of

the rolling motor is broken

1.check whether the

backrest wire(black) is

well connected

2.change the counting

sensor of the rolling

motor

activate the

Rolling

function

tested more than 2

wideth inspection

signal

1.wideth inspection board

is broken

2.wideth inspection wire is

not well connected

1.change wideth

inspection board

2.change backrest

wires.(black)

activate the

Rolling

function

more than 5

seconds did not

tested the wide

signal

1.wideth inspection board

is broken

2.the wire connect to the

wideth inspection board is

1.change wideth

inspection board

2.change backrest

wires.(black and gray)

activate

auto-check

model

disconnected

3.kneading motor is

broken or kneading belt is

lost

3.change kneading

motor

more than 5

seconds did not

tested the middle

signal

1.wideth inspection board

is broken

2.the wire connect to the

wideth inspection board is

disconnected

3.kneading motor is

broken or kneading belt is

lost

1.change wideth

inspection board

2.change backrest

wires.(black and gray)

3.change kneading

motor

activate

auto-check

model

more than 5

seconds did not

tested the narrow

signal

1.wideth inspection board

is broken

2.the wire connect to the

wideth inspection board is

disconnected

3.kneading motor is

broken or kneading belt is

lost

1.change wideth

inspection board

2.change backrest

wires.(black and gray)

3.change kneading

motor

activate

auto-check

model

when not

kneading but the

wideth inspection

signal still can be

tested

1.Main PCB is broken

1.Change PCB

activate

auto-check

model

tested signals

from up & down

limit sensor at the

same time.

1.up & down limit sensor

are broken

2.backrest wire(black) is

disconnected.

1.Change up & down

limit sensor

2.check whether the

backrest wire(black)is

well connected

activate

auto-check

model

more than 40s

didn't tested the

signal from the up

limit sensor

1.upper limit sensor is

broken.

2.backrest wires( black

and gray) are

disconnected

3.rolling motor is broken

or rolling motor wire

disconnected

1.change upper limit

sensor

2.check whether the

backrest wire(black) is

well connected.

3.change rolling motor

or rolling motor wire.

activate

auto-check

model

height counting

signal error

1.the counting sensor of

the rolling motor is broken

2.backrest wire(black) is

disconnected

1.change the counting

sensor of the rolling

motor.

2.check whether the

backrest wire(black) is

well connected.

activate

auto-check

model

can't test signal

from foot rest

recline actuator

1.down limit sensor is

broken

1.change down limit

sensor

2.check whether the

backrest wire(black) is

well connected.

3.change rolling motor

activate

auto-check

model

more than 40s

didn't tested the

signal from the up

limit sensor

1.down limit sensor is

broken

2.the backrest wire(black)

is disconnected.

3.rolling motor is broken

or disconnected

1.change down limit

sensor

2.check whether the

backrest wire(black) is

well connected.

3.change rolling motor

activate

auto-check

model

after tested signal

from down limit

sensor then

tested signal from

up limit sensor in

2 seconds.

1.upper limit sensor is

broken.

1.change upper limit

sensor

activate

auto-check

model

when start the

backrest recline

actuator, there is

no counting signal

for more than 2.5

seconds

1.backrest recline actuator

is broken

2.backrest recline actuator

wire is disconnected

3.the signal wire of the

backrest recline wire is

disconnected

1.change backrest

recline actuator

2.check whether the

backrest recline

actuator motor wire is

well connected.

3.check whether the

signal wire of the

backrest recline

actuator is well

connected

activate

auto-check

model

5-18: Guidance of service the footrest.

A：Detach the seat pad assy . ( Refer to Guidance of service the seat pad.)

B：Slacken and remove the screws which fixing the seat board . Then remove the seat board.

C：Disconnect footrest air hose, then cut the cable tie which fasten footrest air hose together.

Seat pad has been detached.

Locate screws.

Seat board has been removed.

Locate air hose connecter.

Locate cable tie.

D: Find the bolt which joint the footrest and connecting rod together.

E: Use pliers remove the bin first, then remove the bolt.

D: Find two screws which fixing the footrest onto the chair.

Locate the two screws.

Locate the bolt.

Remove the pin by pliers.

The bolt has been removed.

E: Slacken and remove the screw nut, then remove the screw. ( As picture below show.)

F: After the two screws have been removed, then we can detach the footrest.

G: Slacken and remove the screws which fixing the footrest supports. ( As pictures below

show.)

Locate footrest supporters and

screws.

H: Find the zipper heads of the footrest cover. And unzip the zipper. (As pictures below show.)

I: Now we can remove the footrest cover.

Locate zipper heads.

The zipper has been unzipped.

Footrest cover has been

removed.

J: Find connecters of air bag and disconnect it, Then we can take off the air bag and change a

new one. ( As pictures below show.)

Locate air bag connecter.

Locate air hose connecter.

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