Cozzia EC-360D Manual

EC-360D Maintenance Service Manual
MODEL: EC-360D
By Customer Service Department

Contents
1. Precautions for inspection and repair
2. Error codes and Description
3. Tools list
4. Replacing of the backrest pad
5. Replacing of the fabric of the backrest
6. Replacing Backrest Assembly.
7. Replacing detach front cover of backrest & rear cover of backrest
8. Replacing up & down limit sensor.
9. Replacing kneading motor.
10.Replacing counting sensor of rolling motor.
11. Replacing gear box.
12. Replacing massage mechanism.
13. Replacing rolling motor Assembly
14. Replacing main PCB.
15. Replacing Transformer.
16. Replacing Air valve.
17. Replacing Inflator Pump.
18. Replacing seat pad
19. Replacing side board.
20.Replacing remote control.
21.Replacing actuator
22. Replacing footrest Assembly

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. Error Codes and description
2.1 Error Message will be displayed when Malfunction
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
01
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
02 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
03 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
04 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
07
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
08
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
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
09
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

10
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
12
when not kneading but
the wideth inspection
signal still can be
tested
1.Main PCB is broken 1.Change PCB activate
auto-check model
13
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
14
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
16
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
17
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
18
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
19
can't test signal from
foot rest recline
actuator
1.foot rest recline actuator is
broken
2.foot rest actuator motor wire
is disconnected
3.the signal wire of foot rest
actuator is disconnected.
1.change foot rest recline
actuator
2.check whether the foot
rest recline actuator motor
wire is well connected.
3.check whether the signal
wire of foot rest actuator is
well connected
activate
auto-check model

25
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
2.2 Common Troubles and Maintenance Methods are listed as following:
Serial NO. Phenomenon Description Maintenance Methods
01
No Function When
Starting.
The LCD isn’t illuminating:
①Fuse melts (in the Power Source Box or on
the transformer wire).
②Power supply circuit poorly connected.
③ main PCB fails.
①Replace Fuse.
②Replace Power Box.
③ Replace main PCB.
02
No function when
starting.
The LCD is illuminating：
①Mechanical switch fails or it’s wire is
opened.
②Up or Down Stroke Photo-electricity fails.
③Main PCB fails.
④Kneading is on without pressing any key
when starting and no response by pressing
other keys.
①Replace mechanical switch or
it's wire.
②Replace Stroke Photo-
electricity.
③Replace the main PCB.
④Width Inspection Board of
PCB fails, replace it.
03
No Width
switchover.
①The terminals of Width Inspection on main
PCB and wires are poorly connected.
②The terminals of Width Inspection on
massage mechanical and wires are poorly
connected.
③Width Inspection fails.
④Main PCB fails.
①&②Plug the terminal securely
or replace the wires.
③Replace Width Inspection.
④Replace the main PCB.

5：Replacing of the fabric of the backrest
A：Unzip the zipper and separate the back pad from the backrest.
B：Find the two zippers at the bottom of the front back. Unzip these two zippers, then we can
take the fabric off.
6：Replacing BackrestAssembly.
A：Take off the backrest pad. ( Please refer to Replacing of the backrest pad)
B：Take off the bin which connects the backrest and the bindiny mechanism.

C：Disconnect the two backrest wires (one is gray, one is black ) .
D：Pull the backrest vertically, then the backrest can be take off.
E：Raise the backrest vertically, fix the axletree on the each side of the backrest to the side panel
slots. Then fix the bin and connect the backrest wire connecters.
Backrest wire connecters
Note different color Wire
Terminals and mark
(Insert the wire plugs back
black to black and gray to
gray, otherwise damage to
the chair may result)
Lift the
backrest at
90 de
g
rees.
After disassemble the Seat part
Disassembly Flat head rivet and Split pin