Page 1
7. General Error Function
When an error occurs, this function starts to keep generating error melody sounds and displays error indicators as
shown in the followings per corresponding error by blinking in 0.5sec interval until the error status is completely cleared out.
In this case, all the driving devices are turned off until the error is cleared out.
1. WATER SUPPLY ERROR
- Display shows such as fig. 1
- Water Supply Error occurs when water level frequency does not show
changes more than 100Hz or water is not supplied
up to the water level presetting for 20 min or more at the time of initial
water supply.
-The error status can be cleared by turning POWER S/W OFF and
resuming the POWER ON initial status.
fig. 1
○ :Lighton
● :Lightoff
1000rpm
2. WATER DRAIN ERROR
- Display shows such as fig.2
- In case the water level frequency is 24.5KHz or less in the initial phase
of UNB-detecting cycle.
- Water Drain error can be cleared by turning POWER S/W OFF and
resuming the POWER ON initial status.
3. OVER-FLOW ERROR
- Display shows such as fig.3
- Over-Flow error occurs when the water level is in abnormal operation.
ItcanbeclearedbyturningPOWERS/WOFF.
Water is drained prior to POWER S/W OFF and it is forced to be drained
for 2 min if a frequency of more than 24.5 KHz is detected.
4. UNBALANCE ERROR
- Display shows such as fig4.
- Laundry load is unbalanced; loosen any tangled laundry.
- If only one item of clothing needs washing, such as a bathrobe or jeans,
the final spin result might be unsatisfactory and an error message will be
shown in the display panel such as fig 4..
- Unbalance error is cleared by POWER S/W OFF and by resuming the
POWER ON initial status.
5.WATERHEATERERROR
- Display shows such as fig.5 or fig.6
- In case the water temperature rises by 7∞C or more in 1 min. or by 2∞C
less in 10 min after heating is started.
- It can be cleared by turning POWER S/W OFF.
1000rpm
fig. 2
1000rpm
fig. 3
1000rpm
fig. 4
1000rpm
6 DOOR OPEN ERROR
- Display shows such as fig.7
- Door Open error can be cleared by closing the door.
7. ASSí Y PRESSURE S/W ERROR
* Generated Frequency Signal of WATER LEVEL(W/L) S/W (KHz)
Level Low Level High Level
Abnormal W/L Frequency 30.00 KHz 15.00 KHz
- 12 -
fig. 5
1000rpm
fig. 6
1000rpm
fig. 7
Page 2
7. General Error Function
- If the same signal as the above table is detected for more than
5 seconds, it is a PRESSURE S/W Error.
- When the error occurs, water drain pump will operate for 3 min. and
then turn off the water drain pump.
Then the display shows fig. 8 indicating a pressure s/w error indicator.
1000rpm
8. ABNORMAL WATER TEMPERATURE ERROR
- In case the water temperature is 50∞C or more in Delicate and Wool
course.
- At the time of initial water supply, if the water temperature is not
appropriate, water starts to be drained and it is forced to be drained
for 2 min when the abnormal frequency of 24.5KHz is detected.
- Display shows fig. 9
- This error can be cleared by POWER S/W OFF.
9. WATER LEAKAGE ERROR (E9)
- Water Leakage error occures when water is drained naturally after
washing program starts.
10. Tacho Error
- This error occurs in case motor thaco is out of order or tacho siganals
inputted are fewer than 2
- Display shows fig. 11
- This error can be cleared by power s/w off
11. Motor Triac short Error
- This error occurs in case over 300 per 1 sec tacho signals are inputted
power S/w should be off.
-fig. 12 is diplayed.
- This error can be cleared by power s/w off
fig. 8
1000rpm
fig. 9
1000rpm
fig. 10
1000rpm
fig. 11
1000rpm
fig. 12
12. Thermistor error
- This error occurs, when Thermistor circuit is abnormal or the detected
electrical volt is 0.2v below or 4.5v over
- fig. 13 is displayed
- This error can be cleared by power s/w off
- 13 -
1000rpm
fig. 13
Page 3
8. Trouble Diagnosis
- As the micom wash machine is configured of the complicate structure, there might be the service call.
Below information is prepared for exact trouble diagnosis and suitable repair guide.
Caution for the Repair and Replacement
Please follow below instruction for the trouble diagnosis and parts replacement.
1) As some electronic components are damaged by the charged static electricity from the resin part of wash
machine or the human body, prepare the human body earth or remove the potential difference of the
human body and wash machine by contacting the power supply plug when the work contacting to PCB is
executed.
POWER SUPPLY PLUG
2) Since AC220~240V is applied to the triac T1 and T2 on P.C.B, the electric shock may occur by touching
and be careful that the strong and weak electricity are mixed.
3) As the P.C.B assembly is designed for no trouble, do not replace the P.C.B assembly by the wrong
diagnosis and follow the procedure of the trouble diagnosis when the micom is not operated normally.
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Page 4
8-1. Trouble Diagnosis
No Item Cause and treatment
- Is the PCB connector connected well?
- Is the voltage normal?
- Is the power supply plug connected well?
1 The power is not supplied
2 The water is not supplied.
The wash does not start though
3
the water supply is stopped.
- Is the noise filter connected well?
- Is the secondary output of the power supply transformation normal?
- Is the fuse disconnected? (option)
ï If above points are not found, the PCB assembly is out of order.
Replace it.
- Is the knob open?
- Did you push START/PAUSE button after selecting the course?
- Is the water supply valve connected well?
- Is the winding of the water supply valve continuous?
- Is the connection and operation of the pressure switch normal?
ï If above points are not found, the PCB assembly is out of order.
Replace it.
- Is the connection and operation of the pressure switch normal?
- Is the pressure switch hose damaged so that the air is leaked?
- Is the pressure switch hose bent?
- Check the operation of the water level switch.
ï If above points are not found, the PCB assembly is out of order.
Replace it.
The drum does not rotate during
4
washing.
The drum rotates by one direction
5
during washing. (The drum rotates
to one direction for SPIN.)
6 Drainage problem.
7 Dehydration problem.
8 Abnormal noise during SPIN.
Leak breaker or current/leak
9
breaker is down during washing.
10 The heating is not executed.
- Is the belt connected well?
- Is the winding of the motor continuous?
(Rotor winding, stator winding, generator)
- Is the motor protector normal?
ï If above points are not found, the PCB assembly is out of order.
Replace it.
- The PCB assembly is out of order. Replace it.
(Inversion relay open trouble)
- Is the drainage hose bent?
- Is the winding of the drainage pump continuous?
- Is the drain filter clogged by the waste?
ï If above points are not found, the PCB assembly is out of order.
Replace it.
- The unbalance is detected.
- Put in the laundry uniformly and start again.
- Is the pulley nut loosen?
- Is the transport safety device removed?
- Is the product installed on the level and stable place?
(Little noise may be generated during the high-speed SPIN.)
<When the leak breaker and current breaker is installed separately>
- When the leak breaker is down, check and make the earth of the outlet.
- When the current is down, the current is leaked.
<Is the breaker down when the leak/current breaker is combined?>
- Check the rated capacity of the current and leak breaker.
The current breaker may be down due to the lack of the current when the
wash machine and other apparatus are used.
In this case, execute the cold water wash to check whether the current capacity is lack.
- Is the wash heater terminal unplugged?
- Is the wash heater normal?
- If above points are not found, the PCB assembly is out of order.
Replace it.
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Page 5
8-2 . Problem Checkking And Method Of Pcb
8-2-1 The Part Of Power Source
NO Power On
YES
The Voltage Of
BetweenⓐandⓑIs
As Big As 12V?
YES
NO
Check The Trans
TRANS
The Voltage Of
Betweenⓒand
As Big As 12V?
YES
The Voltage Of
Betweenⓔand
As Big As 5V?
YES
ⓐ
ⓑ
ⓓ
Is
ⓓ
Is
D11,12,13,14
2200UF
D10
CE7
ⓒ
NO
NO
TR7
7805
Check The Diode(D15-D19)
And Condenser(CE7)
Exchange TR7(7805) And
Check The
Condenser(CE6)
CE6
470UF
ⓓ
ⓔ
16
47
17
48
20
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Page 6
8-2-2. Reset Part
The Value Of
Measurement Result Of
Between Micom 23 And
Gnd Is 5V?
Check IC4
YES
NO
Check The Power Source
8-2-3. Interrupt Part
Check The Curve
Output Ofⓐ?
Check The Micom
Number 31 ?
IC4
7033
R19
23
CE4 1UF
Check D11 - D14
Check TR12, R29
Check The Part Of
Oscillator
ⓐ
C14
R31 2.2K
R29 4.7K
TR12 815
31
C11
R30 C12
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Page 7
8-2-4. Checking The Part Of An Oscillator
When The Micom 18,19
Check, The Value Is
8Mhz?
YES
Exchange Micom And Check R53
NO
Check Resonator
RESO
8MHz
R53 1M
18
19
- 18 -
Page 8
8-2-5. Driving Part Checking
◆
Confirm The Output Of DC5V, When The Every Part Of Micom Number Check,
According To The Some Problem Condition
ex) When The Drain Is Not Operating But Pump Motor Is Operating, Check
The 5Voltage Of Micom
Micom Number, 9 Is
5Voltage?
YES
The Part Of
ⓐ
Is
0 Voltage?
YES
Check R38, TRIAC2
NO
Micom Bad
NO
Check The IC 65003
MICOM
IC65003
ⓐ
TRIAC1
TRIAC3
TRIAC2
※
Check The Micom 12th In The Above Method When The Cold Water Is Bad
R40
R35
R38
ⓐ
ⓐ
ⓐ
POWER
DOOR
COLD
PUMP
1
7
12
9
- 19 -
Page 9
8-2-6. Confirm The Driving Part Of Motor
Motor Is Not Spinning
NO
Motor Is Not Turnning
Right And Left
NO
Check The Tacho Part
YES
Check BD1, TRIAC4
YES
Check RELAY3
CM4
R50
BD1
COIL1
RELAY3
CM5
R51
TRIAC4
12V
MICOM
IC 65003
R34
5
1W 300
3
D15
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Page 10
8-2-7. Checking The Tacho Part
Have The Motor Turn In Hand
Is The Rectangular
CurveInTheMicom
21,10th ?
YES
Exchange The Motor
R43 1K
R41
C19
TR13
NO
Check The Surroundings
Circuit And TR13
MICOM
R41 4.7K
21
815
C18
- 21 -
Page 11
9. Test Mode
Bio 60
60
40
Rinse+Spin
1
1. Driving Compartment Test Mode
A. Hold down ì 1î and ì 2î keys simultaneously and then press POWER S/W ì 4î on.
B. The driving compartment can be tested when you press ì 3î key right after entering
into the initial stage of the TEST MODE.
ï Driving Compartment Test
COLD VALVE ON(0.3sec)→[OFF(0.3sec)
Pump MOTOR ON(0.3sec)→OFF(0.3sec)→MOTOR Left (0.5sec)→OFF(0.5 sec)
MOTOR Right (0.5sec)→OFF(0.3sec)→HEATER RELAY ON(0.3sec)→OFF(0.3sec)→DOOR OPEN
(Function continues when door is closed)
Cold
2
→
Softener
800rpm
1000rpm
600rpm
No Spin
Power
Star t/
Pause
3 4
→
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