1

2

3

4

5

6

7

8

2012年7月1号-版本A
DRV8代替CM1使用说明：

布线注意：
A

指示灯说明：

1.SGE1.SGE2对应1628的GR1，L1-L8对应1628的SGE1-SGE8
2.SGE3.SGE4对应1628的GR2，L9-L16对应1628的SGE1-SGE8
3.SGE5.SGE7对应1628的GR3，L17-L24对应1628的SGE1-SGE8

SEG6不能接指示灯,可以接数码管
复位电路必须靠近触摸IC
相邻键的走线至少相距2倍的线宽或隔地线

远离高频信号
双面板线宽0.18-0.254MM，单面板线宽0.3-0.4MM
走线长度小于20CM（无铺地的条件）
没有用到的触摸按键接4.7K到地

A

按键说明：
对应CM1的X7
对应CM1的X6
对应CM1的X5
对应CM1的X4
对应CM1的X3
对应CM1的X2
对应CM1的X1
对应CM1的X0

KEY1
KEY2
KEY3
KEY4
KEY5
KEY6
KEY7
KEY8

电量/电压

开关


SW6

SW5

SW4

SW3

DISP1
SEG1 R5
SEG2 R6

200R 1

SEG3 R7
SEG4 R8

200R 3

SEG5 R9
SEG6 R10

200R 5

B

D
DP

200R 4


C

GR1

8

COM1
200R
R1
COM2
200R
R2
COM3

6

COM4

GR4

9

COM3

B

200R 10

12


COM1
COM2

G

200R 7

SEG7 R11
SEG8 R12

KEY1
KEY2

E

200R 2

COM4

GR2
GR3

R24
4.7K
R29
R30
1K
R31
1K

R32
1K
R33
1K
R34
1K
1K

KEY3
KEY4
KEY5
KEY6
KEY7
KEY8
KEY9
KEY10
KEY11
KEY12

F

200R 11

A

B

4DISP Gongyin
SW7


SW8
功能选择

GR4

R27

10K

10K

CM_TX SDATA 2
3

VDD

4

对应1628:GR1

SEG1

C3
101

GR4

GR3

GR2


GR1

GR4

GR3

GR2

GR1

5

KEY2

6

KEY3

7

SEG2
C2
101

C

KEY1

KEY4


8

KEY5

9

KEY6

10

KEY7

11

KEY8

12

KEY9

13

L9

对应1628:GR2

SEG3

SEG4


KEY10 14

PB0

PA0/SDI/SDA

PB1/TP2_0

VDD

PB3

PC0/TP0_0/KEY1

PB4

PC1/TP0_1/KEY2

PB5

PC2/KEY3

PA6

KEY5

PA5

KEY6


PA4/TCK0/INT0

KEY7

SOP24

KEY9

PA1/INT1
KEY12

KEY10

KEY11

SOP28

COM2

26

COM3
COM4

25

+5

24


SEG8

23

SEG7

22

SEG6

RES

21

SEG5

C4
104

20

SEG4

19

SEG3

18


SEG2

R23

17

SEG1

16

KEY12

15

KEY11

10K

C

+5
R16
2K

TXD

R15

1


1K

CN3
4
3
2
1

RXD

CON2

4

2

12KEY不使用

3

通信接口

LEC-1

GR4

1
2
3
4

5

SEG7

VDD

1
2
3
4
5
6

CN1

在线烧写脚,生产时不用安装

CP1

D

R14
2K

CN2

VDD

RES
CLK

SDATA

+5

触摸要用

TXD
RXD

芯片滤波
CM_RX
CM_TX

GR3

GR2

GR1

GR4

GR3

GR2

GR1

PA3/SCS

KEY8


COM1

27

+5

连接口
SEG5

PA7/SDO

PC3/KEY4

HIGHWAY-DRV8

对应 1628:GR3

PB2/TP2_1

VSS

28

D1

GR3

GR2
L6


R26

PA2/SCK/SCL

100UF/16V
EC1

L5

定时/预约

U1
1

CM_RX CLK

4148

L1

GR1

GR4

GR3

GR2

GR1


+5

4
3
2
1
C1
104

RXD CON1
4

1

3

2

R13

TXD

1K

LEC-1

+5

D


Title
Size

Number

Revision

A3
Date:
File:
1

2

3

4

5

6

2015-4-11
Sheet of
F:\荣马电器\SCH\RM-D41 20131211.sch Drawn By:
7

8



25490A(1)_1

3/23/06 1:07 PM

Page 2-8

3. Alignment and Adjustments
3-1 Error mode and check method
Error Mode

LAMP

7-segment Display

Indoor unit room temperature sensor error (open or short)
Indoor unit heat exchanger temperature sensor error (open or short)
Indoor fan motor malfunction
EEPROM error
Option error (option wasn't set up or option data error)

3-1

Display Flickering

Samsung Electronics


25490A(1)_1


3/23/06 1:07 PM

Page 2-9

Alignment and Adjustments

3-1-1 Room temperature sensor Error
Error Mode

LAMP

7-segment Display

Indoor unit room temperature sensor error(open or short)

Detach the assembly sensor from the
ASS'Y PCB CN43 connector and measure
the sensor resistance with an ohmmeter (tester)
between Pin #1 and #2.

Is the sensor resistance value
10KΩ ±3% at the room temperature
of 25˚C?

No

ASS'Y Sensor Replace
SENSOR Resistance Value : 20˚C-12.09kΩ
SENSOR Resistance Value : 30˚C-8.31kΩ
SENSOR Resistance Value : 35˚C-6.94kΩ

SENSOR Resistance Value : 40˚C-5.83kΩ

Yes

Connect the sensor to CN43,
supply power, and measure the voltage of
#1 and #2 of the CN43 connector.

Below 0.5V?

Yes

Poor ASS'Y PCB Replace

No
Yes
Over 4.9V?

Poor ASS'Y PCB Replace

No

MICOM Error or Connector(CN43) check

Samsung Electronics

3-2


25490A(1)_1


3/23/06 1:07 PM

Page 2-10

Alignment and Adjustments

3-1-2 Room Pipe sensor Error
Error Mode

LAMP

7-segment Display

Indoor unit heat exchanger temperature sensor error
(open or short)

1. Check the assembly condition of the sensor connector(CN43) on the indoor unit Main PCB and if not assembled, reassemble
the connector accurately.
2. Detach the room pipe sensor connector(CN43) and check the resistance between Pin #3 and #4.
Temperature(˚C)

Resistance Value(Kohm)

Temperature(˚C)

Resistance Value(Kohm)

15


14.68

30

8.31

20

12.09

35

6.94

25

10

40

5.83

Others
The data tolerance
is ±3%.

If the above data is not met, replace the room pipe sensor.
3. Assemble the room pipe sensor to PCB, plug in, and check the voltage of connector 3 and 4. If the resistance is below 0.5V
or over 4.9V, replace the indoor Main PCB. (short or disconnected in the PCB board)


3-3

Samsung Electronics


25490A(1)_1

3/23/06 1:07 PM

Page 2-11

Alignment and Adjustments

3-1-3 Indoor Unit Fan Motor Error
Error Mode

LAMP

7-segment Display

Indoor Unit Fan Motor Malfunction

1. Checklist :
1) Is the indoor unit fan motor properly connected with the connector (CN72)?
2) Is the AC voltage correct?
3) Is HALL IC in indoor fan motor properly connected with the connector (CN44)?
4) Is the running capacitor (CR71) properly connected with PCB board?
2. Troubleshooting procedure

After unplugging out the power cord should

be reconnected within 5 seconds.
Yes
No

Check as in the procedure "No power".

Does the OPERATION lamp blink?
Yes
Does the Solid State Relay(SS71) work properly?
Test rod location
+

-

SS71-

SS71-

No

Micom is
out of order.

Micom should be replaced

Normal
Voltage

12V


Yes
No
Is the supply voltage of the fan motor sufficient?
Test rod location
PCB CN72

Condition

pin #3 and #5

Fan operating

PCB is
out of order.

PCB should be replaced.

Normal
voltage

About AC180V
Motor Fan-Capacitor is out of order

Replace Motor
Fan-Capacitor

Yes

Fan motor is out of order.


Samsung Electronics

Fan motor should be replaced.

3-4


25490A(1)_1

3/23/06 1:08 PM

Page 2-12

3-2 Setting Option Setup Method

ex) Option No. :

Step 1 : Enter the Option Setup mode.
1st

Take out the batteries of remote control.

2nd

Press the temperature
insert the battery again.

3rd

Make sure the remocon display shown as


button simultaneously and

.

Step 2 : Enter the Option Setup mode and select your option according to the following procedure.

1
The default value is
Otherwise, push the

.
button to

.

Every time you push the button, the display panel reads

or

repeatedly.

2
3

button to set the display panel to

.

Every time you push the button, the display panel reads

...
repeatedly.

2

3

1

Push the

button to set the display panel to

.

Every time you push the button, the display panel reads
...
repeatedly.

4

5

Push the

6

4
Push the


button to set the display panel to

.

Every time you push the button, the display panel reads
...
repeatedly.

5

Push the

button to set the display panel to

.

Every time you push the button, the display panel reads
...
repeatedly.

6
✳ Setting is not required if you must
a value which has a
default.

3-5

Push the

button to set the display panel to


.

Every time you push the button, the display panel reads
...
repeatedly.

Samsung Electronics


25490A(1)_1

3/23/06 1:08 PM

Page 2-13

Alignment and Adjustments

7
Press

button, then the default value is

.

8
Push the

button to set the display panel to


.

Every time you push the button, the display panel reads
...
repeatedly.
9

8

9

Push the

button to set the display panel to

.

Every time you push the button, the display panel reads
...
repeatedly.

7
10

10
11

Push the

12


button to set the display panel to

.

Every time you push the button, the display panel reads
...
repeatedly.

11
Push the

button to set the display panel to

.

Every time you push the button, the display panel reads
...
repeatedly.

12
Push the
✳ Setting is not required if you must
a value which has a
default.

button to set the display panel to

.


Every time you push the button, the display panel reads
...
repeatedly.

Step 3 : Upon completion of the selection, check you made right selections.
Press the Mode Selection key,
The display part shows
Press the Mode Selection key,
The display part shows

to set the display part to

and check the display part.

.
to set the display part to

and check the display part.

.

Step 4 : Pressing the ON/OFF button (
)
When pressing the operation ON/OFF key with the direction of remote control for unit, the sound ''Ding'' or ''Diriring''
is heard and the OPERATION ICON(
) lamp of the display is flickering at the same time, then the input of option is
completed. (If the diriring sound isn't heard, try again pressing the ON/OFF button.)

Step 5 : Unit operation test-run
First, Remove the battery from the remote control.

Second, Re-insert the battery into the remote control.
Third, Press ON/OFF key with the direction of remote control for set.

• Error Mode
1st If all lamps of indoor unit are flickering, plug out, plug in power plug again and press the ON/OFF key to retry.
2nd If the unit is not working properly or all lamps are continuously flickering after setting the option code, see if the correct option code
is set up for its model.

Samsung Electronics

3-6


25490A(1)_1

3/23/06 1:08 PM

Page 2-14

Alignment and Adjustments

■ OPTION ITEMS
REMOCON
SEG1

SEG2

SEG3

SEG4


SEG5

SEG6

SEG7

SEG8

SEG9 SEG10 SEG11 SEG12

AS09CM3/XAZ

0

2

0

0

0

0

1

7

1


2

0

8

AS09CM3

0

2

0

0

0

0

1

7

1

2

1


8

AS09HM3

0

2

8

0

2

4

1

7

1

2

1

8

MODEL


3-7

Samsung Electronics


No.IHB0703002CE

Induction Heating Cooktop (Built-in/Free-standing)

KY-C227ABSD
Color:
Destination

Black
Hong Kong

TABLE OF CONTENTS
1
2
3
4
5
6
7
8
9

PAGE
Safety Precautions----------------------------------------------- 2

Specifications ----------------------------------------------------- 3
Location of Controls and Components ------------------- 4
Troubleshooting Guide ----------------------------------------- 5
Disassembly and Assembly Instructions ---------------18
Dimensions--------------------------------------------------------38
Factory Setting ---------------------------------------------------39
Schematic Diagram ---------------------------------------------41
Exploded View and Replacement Parts List -----------44

© 2007 Matsushita Electric Industrial Co., Ltd. All
rights reserved. Unauthorized copying and distribution is a violation of law.


1 Safety Precautions

2


2 Specifications
KY-C227A BSD (Hong Kong)
Installation type
Built-in / Free-standing
Power supply
Single phase 220V AC 50Hz 13A
Power consumption
2,600W
Dimensions
Full product size
749mm(W) x 450mm(D) x 108mm(H)
(approx.)

Top size (Frame outside)
749mm(W) x 450mm(D) x 12mm(H)
Burner pitch
38cm
Weight (approx.)
12.0Kg
Standby power consumption
Approx. 2.5W / When the power switch is turned off
Fuse (Main fuse on printed circuit board)
250V 17A
Equipment for Instal- Dedicated circuit
220V 20A or more with circuit breaker
lation
Leakage current breaker
Rated current 20A, Sensed current 30mA
Socket type
BS1363 (Be sure to do ground connection)
Power cord
Length
Approx. 1.5m
Top plate
Material
Crystallized grass
Color
Black
IH heater indication
Cooking ring
High-temperature caution
Two lamp
Fan Motor

Power consumption
DC brushless motor: Approx. 20W (10W x 2)
Ventilation noise
Approx. 50dB
IH heating
Power consumption Left
2,600W(9-level adjustment: Equivalent to 120W to 2,600W)
Right
2,600W(9-level adjustment: Equivalent to 120W to 2,600W)
*The maximum power will be auto-adjusted so as keep the total power under 2,600W.
Power level indication
LED
Cooking timer
Left
1minute to 9 hours and 30 minutes
Right
1minute to 9 hours and 30 minutes
Compatible
Material
Iron, Stainless steel (Magnetic type is better)
Pots/Pans
Diameter
12cm to 26cm: Diameter that the base contact with the top plate.
*Refer to operating instructions for details.
Congee Program
Cooking amount
4 or 2 servings
Congee timer
Within 2-3 hours
Specified Pots

Material
Stainless steel
Diameter
22cm to 24cm: Diameter that the base contact with the top plate.
Depth
16cm to 21cm
*Refer to operating instructions for details.
Safety function
Forgotten-OFF auto shutoff
45min. (When elapses without any button being pressed while heating.)
Main power switch auto shutoff
1min. (When elapses without any button being pressed while non-heating.)
Undetected pot auto shutoff/
The indicator of the IH heater flashes for 1 minute, then goes off.
Small object auto shutoff
Empty pot auto shutoff
Approx. 15 min. when an empty pot is heated, the heater auto shut off.
Error code --- U13: Left IH heater, U14: Right IH heater
Note: Even if this function activated, the pan/pot may be deformed or discolored.
All-lock (Child safety lock)
Lock/Unlock all heater operations, by pressing Lock/Unlock button for 3 sec.
Over heating prevention
If the bottom of the pan is overheated, the heat power is adjusted automatically.
When the temperature decreases, the power increase.
High temperature caution light
The caution light notifies the high temperature of the top plate.

3



3 Location of Controls and Components
3.1.

Functional assignments of boards

PCB-A and PCB-H are the same circuit boards where each one is arranged right and left.

4


4 Troubleshooting Guide
Before starting the troubleshooting process, use the following procedures to pinpoint the cause of the problem.
Operation buttons
The right operation panel

A:Main Power switch
B:All-lock (child safety lock) button
C:Off/On button
D:Heating up button
E:Heating down button
F:Congee button
G:Timer up (+) button
H:Timer down (-) button
The left operation panel

C:Off/On button
D:Heating up button
E:Heating down button
F:Congee button
G:Timer up (+) button

H:Timer down (-) button
Reference: All displays which can be lit.

5


4.1.

Operational checks and procedures
Operation

Description

Preparation: Fill suitable pots with water and place them on the left/right IH heaters. (Refer to: Types of Pots and Pans that can be used in the
Operating Instructions.)
1.Turn the main power switch on.

• The Power switch is lit.

2.Press the Off/On button on the
right/left operation panel.

• The cooking ring is lit and the heat level indicator is displayed on level 6. (The cooling fan starts rotating.)
• Change the heat level with the heating UP and DOWN buttons.

* Turns off automatically if a button is not pressed within approximately one minute.

• Press the heating UP button for longer than one second while the heat level is on 8. This will activate level
9 (2.6kW-boiling).


• When either IH is on level 9 (2.6kW-boiling), turning on the other IH will automatically drop the level 9 IH to
level 8.
*The maximum duration of an IH at level 9 is ten minutes. After ten minutes the level automatically drops to
8.
• When one IH is used on level 8, the maximum level of the other IH is 5.
• The maximum heating level of both IHs simultaneously is 7.

6


Operation

Description

3. The Congee Program
(1)Press the Congee button.

• The Congee symbol flashes,
the timer is set to 3:00 and the 4-servings indicator light is illuminated.

(2)Press the Congee button again.

• The servings light changes to 2.
Each time the Congee button is pressed, the number of servings indicator switchesbetween 4 and 2.

(3)Press the Timer "-" or "+" button.

• Each button press adds or deducts 10 minutes within the 2-3 hour time range.
* Press and hold for rapid mode.


(4)Press the Off/On button.

• The Congee program starts.
The cooking ring is lit and the Congee symbol is illuminated.

* When 3 hours (or the set time) has elapsed, the buzzer will sound and the power will automatically turn
off.
*The Congee setting will be cleared if the Timer or the Off/On button is not pressed within 10 seconds.

7


Operation
4. Timer
(1) Press the "Off/On" button.
(2)Press the "+" button
or press the "-" button.

Description

• "0:01" is displayed.
• "9:30" is displayed.

(3)Repeatedly press the "+" or "-" • 1 min. intervals up to 20 minutes.
button.
• 10 min. intervals up to 3 hours.
*Press and hold for rapid mode.
• 30 min. intervals over 3 hours.

• Timer cooking starts.

(Countdown is in 1 minute intervals.)
* When the timer button is pressed ahead, the timer setting is cleared if 10 seconds have elapsed without
any button being pressed before heating.
5. All-lock button
(1)Locking
Turn on the main power switch • The All-lock symbol appears (An illuminated key.)
* All button operations are disabled.
and press and hold the key but* Locking is disabled while any of the panel operations are in use.
ton for 3 seconds or more.
* The controls remain locked, even when the power is turned off.

(2)Unlocking
Press and hold the key button for
3 seconds again.
• The key symbol disappears.
6.Undetected pot auto-shutoff /
Small object auto-shutoff
• When the Off/On button is • The heat level indicator flashes for 1 minute and then goes off.
* The cooking ring lights up normally.
pushed without placing anything
on the IH heater.

8


4.2.

4.2.1.

Self-diagnosis functions and remedy/repair methods


U indications "U##"

When the safety function is activated, a buzzer will sound and the error indication "U##" will appear.
Note the U number and remove the U display by pressing the Off/On button. Follow the remedy provided for U factors. If the U factor still appears after trying the remedy, there is a breakdown and repairs must be carried out as itemized in the B factor procedures,
shown below.
"Factor" --- U: Using or maintenance B: Breakdown
Error codes
Description
U04
Filter clog detection

Symptom/state

Cause

Factor

"U04" appears while cook- The thermistor has detected
ing and the power is shut abnormal overheating of
down.
PCB-A.

U

Using an incompatible pot.

U

Fan motor is not turning.


B

"U04" appears immediately The thermistor (TH1) on
after the left/right IH heater PCB-A has short-circuited.
is turned on.
Or PCB-A has a malfunction.
U13
"U13" appears while heat- The overheating safety
Empty pot auto-shutoff ing a pan/pot, and the
function triggers when the
(for the left IH heater). power turns off.
temperature of the pan's
base becomes too high.

B

U

U

Note:
Even if this function
activated, the pan/pot
may be deformed or
discolored.

The left IH does not heat up The left IH thermistor has
despite the display being
short-circuited.

normal (the display is not
blinking) and "U13"
appeared after about 10
minutes.

9

B

Checkpoint

Remedy/Repair

Is the intake or exhaust vent Remove anything that is
blocked?
clogging the intake or
exhaust vent.
(U04 disappears when ventilation returns to normal
and the IH coil has cooled
down. Power will be
restored automatically.)
Is the pot being used Use a compatible pot as
labeled "usable with IH"
shown in the Operating
* Earthen pots should not Instructions.
be used even if displayed
for induction heating.
Check the exhaust air Replace the U04 side fanstream, motor noise and fan motor.
rotation.
If the fan motor is func- Replace PCB-A on the U04

tional.
side.
* The motor ratings are DC.
20V.
(As an informal checking:
The motor is normal if it
begins to rotate within the
DC volts 6 to 10.)
If PCB-A is functional.
Replace PCB-L.
"U04" appears soon after Replace PCB-A.
the heat is turned on.

Turn the power off.
Make sure that there is food
in the pan/pot together with
sufficient liquid. Turn the
power on again.
Is the cooker being used for Do not attempt deep frying
deep frying?
with this model.
The oil may overheat and
catch alight because this
cooker model does not
have an oil temperature
control system.
Resistance of thermistor C. Replace thermistor C.
(If this lower than
approx.400Ωat 20°C, it is
defective.)

Resistance of thermistor D. Replace thermistor D.
(If this lower than
approx.400Ωat 20°C, it is
defective.)
If thermistor C and D have Replace PCB-A (left).
not malfunctioned.
Is the pan/pot empty?
Have the contents of the
pan/pot dried out and
burned onto the base?


Error codes
Description

Symptom/state

U14
"U14" appears while heatEmpty pot auto-shutoff ing a pan/pot, and the
(for the right IH heater). power turns off.

Cause

Factor

The overheating safety
function triggers when the
temperature of the pan's
base becomes too high.


U

U

Note:
Even if this function
activated, the pan/pot
may be deformed or
discolored.

U19
Top plate high temperature detection
(for the Congee program).

The right IH does not heat The right IH thermistor has
up despite the display being short-circuited.
normal (the display is not
blinking) and "U14" appears
after about 10 minutes.

B

"U19" appears when the
heat is turned on and the
Congee program is being
used.

The Congee program is
being used while the top
plate is still too hot.


U

An empty pot was used with
the Congee program.

U

The IH coil set thermistor
(C) has a malfunction.

B

10

Checkpoint

Remedy/Repair

Turn the power off.
Make sure that there is food
in the pan/pot together with
sufficient liquid. Turn the
power on again.
Is the cooker being used for Do not attempt deep frying
deep frying?
with this model.
The oil may overheat and
catch alight because this
cooker model does not

have an oil temperature
control system.
Resistance of thermistor C. Replace thermistor C.
(If this lower than
approx.400Ωat 20°C, it is
defective.)
Resistance of thermistor D. Replace thermistor D.
(If this lower than approx.
400Ωat 20°C, it is defective.)
If thermistor C and D have Replace PCB-A (right).
not malfunctioned.
Was the Congee program Wait until the top plate has
started after using the top cooled down before using
plate for other cooking?
the Congee program.
(If "U19" does not appear,
the plate is ready for Congee cooking.)
Is the pot on the top plate Wait until the top plate has
empty or dry?
cooled down. Place food in
the pot and start the Congee program again.
Resistance of thermistor C. Replace thermistor C on the
(If this is lower than approx. side displaying "U19."
1kΩat 20°C, it will malfunction during the Congee program.)
If thermistor C has not mal- Replace PCB-A on the side
functioned.
displaying "U19."
Is the pan/pot empty?
Have the contents of the
pan/pot dried out and

burned onto the base?


4.2.2.

H indications "H##"
Error codes
Description

Symptom/state

Checkpoint

H01
"H01" appears when the main Have those connectors been surely
Open circuit detection for the IH power switch is turned on.
inserted?
coil-center thermistor.
(Left IH)
*E.g.
CN812/CN811 on PCB-G
Measure the resistance between
the two terminal pins of thermistor
C's connector (in the center of the
left IH coil).
* When the resistance is higher
than 2MΩ, it is detected out as
open.
If thermistor C is functional and the
wire is undamaged.

If there is still an error despite
replacing PCB-A.
H02
"H02" appears when the main Have those connectors been surely
Open circuit detection for the IH power switch is turned on.
inserted?
coil-center thermistor.
(Right IH)
*E.g.
CN812/CN811 on PCB-G
Measure the resistance between
the two terminal pins of thermistor
C's connector (in the center of the
right IH coil).
* When the resistance is higher
than 2MΩ, it is detected out as
open.
If thermistor C is functional and the
wire is undamaged.
If there is still an error despite
replacing PCB-A.
"H06" appears when the main Have those connectors been surely
H06
inserted?
Open circuit detection for the IH power switch is turned on.
coil-in thermistor.
*E.g.
(Left IH)
CN813 on PCB-G
Measure the resistance between

the two terminal pins of thermistor
D's connector(in the rolling coil of
the left IH).
* When the resistance is higher
than 2MΩ, it is detected out as
open.
If thermistor D is functional and the
wire is undamaged.
If there is still an error despite
replacing PCB-A.
"H07" appears when the main Have those connectors been surely
H07
inserted?
Open circuit detection for the IH power switch is turned on.
coil-in thermistor.
*E.g.
(Right IH)
CN813 on PCB-G
Measure the resistance between
the two terminal pins of thermistor
D's connector (in the rolling coil of
the right IH).
* When the resistance is higher
than 2MΩ, it is detected out as
open.
If thermistor D is functional and the
wire is undamaged.
If there is still an error despite
replacing PCB-A.


11

Remedy/Repair
Ensure the connection.

Confirm the wire is undamaged and
replace thermistor C (left).

Replace PCB-A (left).
Replace PCB-G (left).
Ensure the connection.

Confirm the wire is undamaged and
replace thermistor C (right).

Replace PCB-A (right).
Replace PCB-G (right).
Ensure the connection.

If it is damaged, replace thermistor
D (left).

Replace PCB-A (left).
Replace PCB-G (left).
Ensure the connection.

If it is damaged, replace thermistor
D (right).

Replace PCB-A (right).

Replace PCB-G (right.)


Error codes
Description

Symptom/state

Checkpoint

H10
"H10" appears when the main
Interruption of the communication power switch is turned on. Only the
signal between the right and left IH left IH indicator.
control circuits.
• The right IH does not operate.
• The left IH does not reach heating level 8. (The heating level 7
or less can be used.)
Note:
For this error, it is high possibility
that the control system in the other
side of the error display has the
trouble.

H13
Open circuit detection for the hightemperature caution light.
(On PCB-D or E)

H14
Open circuit detection for the fuse

of the left IH side.

Remedy/Repair

Wire connections of PCB-L and Ensure that a connection is being
PCB-A (right and left).
made. If not, replace the lead wire.

*E.g.
CN9 on right PCB-A
If the lead wire is making a connection surely.
If there is still an error despite
replacing PCB-A.
"H10" appears when the main Wire connections of PCB-L and
power switch is turned on. Only the PCB-A (right and left).
right IH indicator.
• The left IH does not operate.
*E.g.
• The right IH does not reach CN4/CN9 on left PCB-A
heating level 8. (The heating CN806 on PCB-L
level 7 or less can be used.)
If the lead wire is making a connection surely.
If there is still an error despite
replacing PCB-A.
"H10" appears
when the main Wire connections of PCB-L and
power switch is turned on. Both the PCB-A (right and left).
left and right IH indicators.
• Both IHs do not reach heating *E.g.
level 8. (The heating level 7 or CN4 on left PCB-A

less can be used.)
CN9 on both PCB-A
CN806 on PCB-L
If the lead wire is making a connection surely.
If there is still an error despite
replacing PCB-L.
"H13" appears when the top plate Wire connections of PCB-D, PCB-E
heats up (the high temperature cau- and PCB-H.
tion light is not illuminated) and the If the lead wire is making a connecpower to the left IH is off.
tion.
About the high-temperature cau- * A tester with a diode mode can be
tion light: On the 227 series, a pro- used to check if the LED element is
gram was added that illuminates the broken.
high-temperature caution light, cal- If there is still an error despite
culated according to the watt/hour replacing PCB-D/H or PCB-E/H.
consumption from the time when
the heat is turned on.
This watt/hour calculation causes
the high-temperature caution light
to illuminate before the top plate
becomes hot.
On the high power setting, the caution light will illuminate within in a
few seconds. On lower power settings, it will illuminate within about 3
minutes.
"H14" appears when the left IH is Wire connections of PCB-L PCB-A
turned on.
(left).
*E.g.
CN809/CN810 on PCB-L
FUSE2 on PCB-A (left) is open.


Replace PCB-A (right).
Replace PCB-L.
Ensure that a connection is being
made. If not, replace the lead wire.

Replace PCB-A (left).
Replace PCB-L.
Ensure that a connection is being
made. If not, replace the lead wire.

Replace PCB-L.
Replace both PCB-As (left and
right).
Ensure that a connection is being
made. If not, replace the lead wire.
Replace PCBs D, E or H.
• The left caution light: PCB-E or
H.
• The right caution light: PCB-D or
H.
Replace PCB-A on the "H13" side.

Ensure that connection is being
made.

Replace PCB-A (left.)
Note: Do not simply replace the
fuse. This will not work because the
inverter element is also defective.

H15
"H15" appears when the right IH is FUSE2 on PCB-A (right) is open.
Replace PCB-A (right.)
Open circuit detection for the fuse turned on.
Note: Do not simply replace the
of the right IH side.
fuse. This will not work because the
inverter element is also defective.
H20
"H20" appears for both IHs when Check the power supply voltage.
Connect to a correct line (singleImproper power supply detected
the main power switch is turned on. * Is the unit connected to a 110V/ phase 220V).
(or an in-circuit problem).
Pressing buttons has no effect.
120V line?

12


Error codes
Description

Symptom/state

Checkpoint

H21/H22
Both of "H21" and "H22" appear on
Breakdown detection for the power the left and right display, when the
relay.

main power switch is turned on.
("H22" appears first on the right.
And, "H21" will appear on the left in
about 1 minute.)

"H21" appears on the left display
only, when the main power switch is
turned on.

"H22" appears on the right display
only, when the main power switch is
turned on.

H26
"H26" appears when the main
Open circuit detection for the left power switch is turned on.
IGBT thermistor.

H27
"H27" appears when the main
Open circuit detection for the right power switch is turned on.
IGBT thermistor.

4.2.3.

Remedy/Repair

Wire connections from PCB-L to Ensure that connection is being
PCB-A (left).
made.

*E.g.
CN810-CN2/PCB-A (left)
The power relay (RL801) on PCB-L
is malfunction.
*Contacts welding or open in active.
The control signal from the left
PCB-A to the power relay does not
reach.
If there is still an error despite
replacing PCB-A (left).
The control signal from the right
PCB-A to the power relay does not
reach.
If there is still an error despite
replacing PCB-A (right).
Check the resistance of the thermistor TH1 on PCB-A (left.)
* When the resistance is higher
than 1MΩ, the circuit is detected as
open.
Check the resistance of the thermistor TH1 on PCB-A (right).
* When the resistance is higher
than 1MΩ, the circuit is detected as
open.

Replace PCB-L

Replace PCB-A (left)

Replace PCB-L
Replace PCB-A (right)


Replace PCB-L
Replace PCB-A (left).

Replace PCB-A (right).

Other faults

1. The high-temperature caution light keeps blinking.
Checkpoint
Thermistor C
Thermistor D

Probable Cause
The element in thermistor C has short-circuited.
* Resistance lower than 150Ω is detected a short-circuit.
The element in thermistor D has short-circuited.
* Resistance lower than 150Ω is detected a short-circuit.

Remedy/Repair
Replace thermistor C.
Replace thermistor D.

2. The cooking ring of the IH heater does not illuminate
Checkpoint
PCB-F (in the IH coil set)
PCB-G (in the IH coil set)
PCB-A (on the defective side)

Probable Cause

Check the PCB-F/G connection. If the connection is sound
If the defect persists despite replacing PCBs F and G

13

Remedy/Repair
Replace PCB-F or PCB-G.
Replace PCB-A.


4.2.4.

Power supply check mode (OVD checking)

In this mode, an abnormal power supply can be checked. Use this mode, when one or more of the following symptom occur.
Symptom:
• It takes an excessively long time to boil water. (The indicators on the operation panel are normal.)
• The pot/pan intermittently stops heating up. (The indicators on the operation panel are normal.)
• The indicators on the operation panel disappear momentarily, or display intermittently. (Heating power starts/stops simultaneously with the blinking indicators.)
Note:
• If "C01" is displayed in this mode, the unit itself is not malfunctioning. This indicates that the power being supplied to it is abnormal, either due to an incorrect supply voltage or a disturbance in the waveform, caused by electrical noise or for other reasons.
• OVD (Over Voltage Defense,) is a damping function that is activated to temporarily stop operations in order to prevent the inner
circuit of the IH cooktop from overheating.
Remedy:
• Ascertain the source of the power supply noise and remove it. (Refer to "Noise Incidents" - KAD0507001BE.)
1. Check if the electrical noise is being caused by other equipment in the house.
2. If the noise is a coming from an outside source, approach your power company for assistance.
Operating procedures
Operation
Preparation

Pour water into a pot and put it on the IH heater.
How to operate (Each button operation has a buzzer sound.)
1.Turn the main power switch on.
2.Press the Heating down and Timer down button simultaneously.
3.Press the Heating up button immediately (within 3 seconds).

4.Press the Off/On button.

*In this mode, only the following button can be used On/Off.
Heating up and Heating down
How to release
Turn the main power switch off.

Indicators on the operation panel
"C" appears in the display window.

C00: Normal power supply.

C01: Abnormal power supply.
The wave exceeds the OVD limits.

14


4.2.5.

Memory of total hours used and the latest error code recall mode

In this mode, the total hours used by each IH and the latest displayed error code can be recalled on the IH indicator.
Operating procedures

Operation
How to operate (Each button operation has a buzzer sound.)
1.Turn the main power switch on.
2.Press the Heating down and Timer down button simultaneously.
3.Press the Heating down button immediately (within 3 seconds).

Indicators on the operation panel
Shows hours used.
Example: 112 hours.

4.Press the Heating down button again and hold it.
Note: The maximum time that can be displayed is 65,535 hours.

Shows X1000 hours.
Example: 15,000 hours..

Displaying the latest error code
5.Press the Timer up button.

Return to the hours used
6.Press the Off/On button.

Shows the latest error code.
Example: U14

Returns to the hours used display.
Example: 112 hours

Initialization of memory
7.Press and hold the Timer down button for 3 seconds.


The hours used and the error-code are set to zero.

How to exit from this mode
Turn the main power switch off.

15


4.2.6.

Integral power consumption display mode

In this mode, a rough estimate of integral power consumption is shown.
Operating procedures
Operation
How to operate(Each button operation has a buzzer sound.)
1.Turn the main power switch on.
2.Press the Heating down and Timer down button simultaneously.
3.Press the Off/On button immediately (within 3 seconds).

To see the lower digit.
4.Press and hold the Heating up button.

To see the upper digit.
5. Press and hold the Heating down button.

Change the display to integral watt-hour-2.
6. Press the Timer up button.


Indicators on the operation panel
Shows integral watt-hour-1 in 3-digit kWh.
Example: 126 kWh

Shows integral watt-hour-1 in 3-digit Wh.
Example: 345 Wh

Shows integral watt-hour-1 in 2-digit kWh X 1000.
Example: 18,000 kWh

The integral watt-hour of above example is 18126.345 kWh, if each set of
digits is totaled.
Shows integral watt-hour-2.

Reset integral watt-hour-2
7. Press and hold the Timer down button for 3 seconds.

The memory of integral watt-hour-2 is reset to zero.

How to exit from this mode
• Turn the main power switch off.

16


Operation
Note: The detailed aspects of integral watt-hour-1 and 2

4.2.7.


Indicators on the operation panel

Demonstration mode

In this mode, the buttons can be used but heating does not occur.
Operating procedures
Operation
How to operate(Each button operation has a buzzer sound.)
1. Turn the main power switch on.
2. Press the Heating down and Timer down buttons simultaneously.
3. Press the Timer up button immediately (within 3 seconds).

Indicators on the operation panel
• All LEDs, except the high temperature caution LED, illuminate for 3
seconds.

• Shows the demo-mode display, dE.

4. Press any operation button.

Example: Press Off/On

How to exit demo-mode
• Perform operations 1, 2 and 3 again.

Note:
• Demo-mode cannot be exited in any other manner, even if the power
is turned off. When the power is turned on again, demo-mode will still
be operational.


17

• The buttons work but heating does not occur and the fan-motors are
not turned on.
• The heating level indicator does not blink, even if there are no pots/
pans on the IH plates.
• The timer function works and countdown takes place.
• The high temperature caution light does not illuminate because the IH
plates do not heat up.
* The caution light will illuminate if the top plate is artificially heated by
placing a hot pot/pan on it.