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
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
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
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

15
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
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
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