Daewoo FRU-541 Series User manual

Mar. 2010.
S/M No. :FRSU20IA05

1. Model Name
① ②③④⑤
FRS-U20 IAI I
①Refrigerant Type
S : R-134a
N : R-600a
②Model Specification
I : Inner Basic
B : Basic
D : Dispenser Only
E : Dispenser + Magic Room
F : Dispenser + H/Bar
G : Dispenser + H/Bar + Magic Room (Full Option Models)
③Door, Handle & Refrigerator Case Features
A : 1st Basic Handle
B : Aluminum Long Handle ( Ref. Case 2ea )
C : Radius Handle ( Ref. Case 2ea )
E : Aluminum Long Handle ( Ref. Case 3ea )
G : Arc Handle
L : Aluminum Long Handle + Internal feature is C type
④Color Option
⑤Inverter Compressor Models Code
2. Model Features ( Below table is Full option model illustrated )
U20*A*
U20*B*
Model Name & Features
Model Name Features Pocket Type Chilled Case Refrigerator Case Q'ty
U20*C*
U20*E*
U20*G*
U20*L*
2 pieces
2 pieces
1 pieces
2 pieces
O
x
1 pieces
1 pieces
O
O
3 EA
2 EA
2 EA
3 EA
2 EA
2 EA
x
x
1

1. Specification
Dispenser
H/Bar
Magic Cool Zone
Total
Freezer
Refrigerator
Total
Freezer
Refrigerator
Width (mm)
Depth (mm)
Height (mm)
Refrigerant Type
Refrigerant Charge
Evaporator Type
Condenser Type
Dryer
Capillary Tube
Defrost Heater
Dispenser Heater
Water Pipe Heater
Main Duct Heater
Home Bar Heater
Defrost Sensor
Freezer Sensor
Refrigerator Sensor
Fuse Temp. (Defrost)
Freezer Fan Motor
Refrigerator Fan Motor
Condenser Fan Motor
Freezer Lamp
Refrigerator Lamp
Feature
xxO
xxx
xxx
343
AC 220V / 10W
531
175
AC 220V / 7W
AC 220V / 5W
AC 220V / 5W
175
518
104
227
377
O
377
227
x
xO
OO
FRU-54.G..
U20G…
604618 604
OO
U20F…
FRU-54.F..
U20D…
Cooling Cycle
Electronic Part
Heater
Sensor
U20E…
Factory No.
Buyer No. U20B…U20I…
FRU-57.I.. FRU-57.B.. FRU-54.D.. FRU-54.E..
Weight (kg)
Gross Vol.
(ISO 15502)
Storage Vol.
(ISO 15502)
Diemension
618
241
377
555 518
354 356356 343354
555
175 175201
377
241
531
604 604
O
377
227 227
377
PBN-43
76g or 190g
AC 220V / 192W
115 117 119
ID0.7 x T0.55 x L2200
Molecular Sieve xH-9
x
x
201
DC 13V, 2050rpm
AC 250V, 10A, 77C
PBN-43
PT-38
903
730.5
1790
x
R-600a or R-134a
25W x 2EA
25W x 1EA
DC 13V, 1100rpm
DC 13V, 1850rpm
117104
Fan Cooling System
Fin Type
2

2. External Size
SPECIFICATIONS
3

3. Interior Parts
3-1. Basic Models
3-2. Dispenser Model ( Full option model )
SPECIFICATIONS
4
1) Freezer Top Pocket (1ea)
2) The mouth of the ice
3) Freezer Pocket (3ea)
4) Case Ice Crusher
5) Freezer Lamp (25Wx1ea)
6) Freezer Shelf
7) Freezer Case (2ea)
8) Refrigerator Lamp (25Wx2ea)
9) Refrigerator Shelf
10) Wine Rack (*Option)
11) Refrigerator Case (2ea)
12) Magic Room (*Option)
13) Dairy Pocket
14) Refrigerator Pocket (3 ea)
15) Refrehsment Pocket
3
4
5
6
7
8
9
10
11
1
2
13
14
15
12

1. Display ( Inner Basic Model )
a Temperature adjustment button for freezer compratment
b Temperature adjustment button for refrigerator compratment
2. Display Control
3. FRZ. SET button
1) Temperature control of freezer compartment
2) Initial power plug in : Medium ( 3 )
- Every time you press the FRZ. SET button, the setting temperature changes below order.
4. REF. SET button
1) Temperature control of refrigerator compartment
2) Initial power plug in : Medium ( 3 )
- Every time you press the REF. SET button, the setting temperature changes below order.
FUNCTIONS ( DISPLAY_Inner Basic Model )
FCP Cotrol
Temp. Display (Set Temp.) Initial Mode : Freezer / Refrigerator set medium ( 3 / 3 )
a
b
5

1. Display ( Basic Model )
a Temperature adjustment button for freezer compratment
b Super(Quick) freezer compartment button
c Super(Quick) refrigerator compartment button
d Temperature adjustment button for refrigerator compratment
2. Display Control
3. FRZ. SET button
1) Temperature control of freezer compartment
2) Initial power plug in : Medium ( -19C )
- Every time you press the FRZ. SET button, the setting temperature changes below order.
4. SUPER FRZ. Button
When this button press, the QUICK and Speed icon is flicker 6 times and keep ON.
( By pressing the SUPER FRZ. Button again you can stop this function. )
5. REF. SET button
1) Temperature control of refrigerator compartment
2) Initial power plug in : Medium ( 4C )
- Every time you press the REF. SET button, the setting temperature changes below order.
6. SUPER REF. Button
When this button press, the QUICK and Speed icon is flicker 6 times and keep ON.
( By pressing the SUPER REF. Button again you can stop this function. )
FUNCTIONS ( DISPLAY_Basic Model )
FCP Cotrol
Temp. Display (Set Temp.)
SUPER FRZ, SUPER REF. Icon
Initial Mode : Freezer / Refrigerator set medium ( -19C / 4C)
Button
a
b
c
d
6

1. Display ( Dispenser Type )
a Temperature adjustment button for freezer compratment
b Super(Quick) freezer compartment button
c Reset water filter button after exchanging the filter
d Dispenser selction button. ( Water / Crushed ice / Cubed ice )
e Ice maker lock button
f Children lock button ( Hold 3 sceconds )
g Temperature adjustment button for refrigerator compratment
h Super(Quick) refrigerator compartment button
2. Display Control
3. FRZ. SET button
1) Temperature control of freezer compartment
2) Initial power plug in : Medium ( -19C )
- Every time you press the FRZ. SET button, the setting temperature changes below order.
4. SUPER FRZ. Button
When this button press, the QUICK and Speed icon is flicker 6 times and keep ON.
( By pressing the SUPER FRZ. Button again you can stop this function. )
FUNCTIONS ( DISPLAY_Dispenser Model )
FCP Cotrol
Temp. Display (Set Temp.)
SUPER FRZ, SUPER REF. Icon
WATER / CUBED ICE / CRUSHED ICE
KEY LOCK ICON
FILTER CHANEGE LED AFTER 6 Month, LED ON
Initial Mode : Freezer / Refrigerator set medium ( -19C / 4C)
Button
Button
Button
a
b
ce
h
g
df
7

5. REF. SET button
1) Temperature control of refrigerator compartment
2) Initial power plug in : Medium ( 4C )
- Every time you press the REF. SET button, the setting temperature changes below order.
6. SUPER REF. Button
When this button press, the QUICK and Speed icon is flicker 6 times and keep ON.
( By pressing the SUPER REF. Button again you can stop this function. )
7. RESET WATER FILTER
After 6 month of first power input, 'Change Filter Icon' is on. When the time comes to change follow the steps.
1) Push the Lock button.
2) Push the 'Filter Reset' button for 3 seconds. Then 'Change Filter'icon is off.
8. WATER/ICE select
1) WATER / CUBED ICE / CRUSHED ICE mode available.
2) Every the button press, the order is WATER - CUBED ICE - CRUSHED ICE.
3) The initial mode is WATER.
9. ICE MAKER LOCK
1) Press the 'Dispenser' button continue. ( Press again, the mode is OFF. )
2) When cleaning the ice storage case or when not use for a long period of time.
9. LOCK button
1) When lock the other buttons, press this button and LOCK icon is active.
( In this mode other button is unable except LOCK button.)
2) To unlock, push the button again.
< REFERENCE >
: Please wait for 2 ~ 3 seconds in order to take final ice or drops of water when taking out cup from the pressing
switches after taking ice or water.
: The actual inner temperature varies depending on the frood status, as the indicated setting temperature is a target
temperature, not actual temperautre within refrigerator.
FUNCTIONS ( DISPLAY_Dispenser Model )
8

1. Freezer Compartment Control
1) Adjust by the pushing the FRZ.SET button.
2) Compressor & Freezer Fan controlled by each mode ON/OFF point.
3) Freezer Compartment ON/OFF Difference : 2C
- MEDIUM OFF point : -19C
- When Room Temperature (RT) is below 13C, Freezer sensor OFF point 2C up ( so, MEDIUM OFF : -17C )
4) Control Temperature Point in Each Mode
2. Refrigerator Compartment Control
1) Adjust by the pushing the REF.SET button.
2) Refrigerator Fan controlled by each mode ON/OFF point.
3) Freezer Compartment ON/OFF Difference : 0.5C
- MEDIUM OFF point : 4.2C
- When Room Temperature (RT) is below 13C, Refrigerator sensor OFF point 2C up ( so, MEDIUM OFF : 6.2C )
4) Control Temperature Point in Each Mode
FUNCTIONS ( TEMPERATURE CONTROL )
Initially On 1st Press 2nd Press 3rd Press 4th Press
Sensor On -14.0 -15.5 -17.5 -9.0 -12.0
Sensor Off -16.0 -17.5 -19.5 -11.0 -14.0
Sensor On -12.0 -13.5 -15.5 -7.0 -10.0
Sensor Off -14.0 -15.5 -17.5 -9.0 -12.0
Division
34512Display
Min Medium
Min
Control Medium
Max Max
Normal
RT <= 13C
Temperature Medium
Initially On 1st Press 2nd Press 3rd Press 4th Press
Sensor On 4.7 3.7 2.7 6.7 5.7
Sensor Off 4.2 3.2 2.2 6.2 5.2
Sensor On 6.7 5.7 4.7 8.7 7.7
Sensor Off 6.2 5.2 4.2 8.2 7.2
Sensor On 11.2 10.2 9.2 13.2 12.2
Sensor Off 4.2 3.2 2.2 6.2 5.2
Sensor On 13.2 12.2 11.2 15.2 14.2
Sensor Off 6.2 5.2 4.2 8.2 7.2
51
Division
Display
Weak refrigeration
& RT <= 13C
2
Temperature Medium Medium
Max Max Min Medium Min
34
Normal
RT <= 13C
Weak refrigeration
9

1. Freezer Compartment Control
1) Adjust by the pushing the FRZ.SET button.
2) Compressor & Freezer Fan controlled by each mode ON/OFF point.
3) Freezer Compartment ON/OFF Difference : 2C
- MEDIUM OFF point : -19C
- When Room Temperature (RT) is below 13C, Freezer sensor OFF point 2C up ( so, MEDIUM OFF : -17C )
4) Control Temperature Point in Each Mode
6) SUPER FRZ. (QUICK) Mode
- In this mode, Compressor & Freezer Fan motor is on unconditionally for 150min. ( free of freezer sensor )
FUNCTIONS ( TEMPERATURE CONTROL )
Initially On 1st Press 2nd Press 3rd Press 4th Press 5th Press 6th Press
Sensor On -14.8 -15.8 -16.8 -17.8 -11.8 -12.8 -13.8
Sensor Off -16.8 -17.8 -18.8 -19.8 -13.8 -14.8 -15.8
Sensor On -12.8 -13.8 -14.8 -15.8 -9.8 -10.8 -11.8
Sensor Off -14.8 -15.8 -16.8 -17.8 -11.8 -12.8 -13.8
Normal
RT <= 13C
Medium
Display
Medium Min
-19 -20
Division
Control
Temperature
-18-21 -22
Min
-16 -17
Medium Max Max
Freezer
Sensor
Freezer
Fan On/Off
SUPER FRZ. Start
( SUPER FRZ. MODE )
NORMAL MODE
Start
150MIN
10

2. Refrigerator Compartment Control
1) Adjust by the pushing the REF.SET button.
LOW - MEDIUM LOW - MEDIUM - MEDIUM MAX - MAX
2) Refrigerator Fan controlled by each mode ON/OFF point.
3) Refrigerator Compartment ON/OFF Difference : 0.5C
- MEDIUM OFF point : 5.2C
- When Room Temperature (RT) is below 13C, Refrigerator sensor OFF point 2C up ( so, MEDIUM OFF : 7.2C )
4) Weak Cooling Prevention Function
- This funtion is free of Freezer sensor.
- When refrigerator compartment reaches the Fan OFF point, the Fan is OFF.
and then Compressor controlled by Freezer sensor.
- Weak cooling temperautre is + 7C in each sensor OFF temperature.
- Weak cooling terminate temperautre is same as each sensor OFF temperature.
6) Control Temperature Point in Each Mode
7) SUPER REF. (QUICK) Mode : This mode runs for 40 minutes.
- Until the sensor reaches the Excess Refrigeration OFF point ( -7C), Refrigerator Fan and compressor is ON.
- Until the QUICK Mode ends, the appliance runs with MAX dial mode.
- After QUICK Mode ( about 40 mins ) the normal mode start.
FUNCTIONS ( TEMPERATURE CONTROL )
Freezer
Sensor
Excess
Refrigeration
OFF point
ON/OFF
MAX MODE
NORMAL MODE
Start
QUICK MODE (40MIN )
Initially On 1st Press 2nd Press 3rd Press 4th Press 5th Press 6th Press
Sensor On 5.7 4.7 3.7 9.7 8.7 7.7 6.7
Sensor Off 5.2 4.2 3.2 9.2 8.2 7.2 6.2
Sensor On 7.7 6.7 5.7 11.7 10.7 9.7 8.7
Sensor Off 7.2 6.2 5.2 11.2 10.2 9.2 8.2
Sensor On 12.2 11.2 10.2 16.2 15.2 14.2 13.2
Sensor Off 5.2 4.2 3.2 9.2 8.2 7.2 6.2
Sensor On 14.2 13.2 12.2 18.2 17.2 16.2 15.2
Sensor Off 7.2 6.2 5.2 11.2 10.2 9.2 8.2
32
Division
Display
Temperature
4
Medium
Normal
Weak refrigeration
RT <= 13C
Weak refrigeration
& RT <= 13C
Medium Max Max Min Medium Min
7658
11

1. When Defrost Mode start?
; When total Compressor runnig time becomes at 6, 8, 10, …, 24hours.
- The compressor runing rate is over 85% every 2 hours.
- Door opening time is over 2 minutes ( Each Freezer / Refrigerator door )
- Total compressor running time ( on time + off time ) is 60hours.
- Any error happens. ( R1, F1, D1, F3, RT-Sensor, C1, Door switch etc. )
( But, F3 error happens then defrost mode start without Pre-cool )
FUNCTIONS ( Defrost Mode )
Compressor runing
time is over 2hours
Start
Total appiance runing
time is over 60hours
Yes
No
Compressor runing
time is over 24hours
Compressor runing
time is over 6hours
Any error happens
Room temperature is
over 35C
Compressor runing rate is
over 85% every 2 hours
Door open ( each door )
is over 2 minutes
End
No
Yes
No
No
No
No
Yes
No
No
Defrost mode start
Yes
Yes
Yes
Yes
Yes
12

2. Normal Defrost Mode
3. Forced Defrost Mode
1) How to start
( Basic Models Only )
; Press the REF. SET button 5 times while pushing the FRZ. SET button.
( Dispenser Models Only )
- Press the LOCK button.
- Press the Refrigerator Set button 5 times while pushing the Freezer Set button.
2) Except PRECOOL, steps are same as above 2. Normal Defrost Mode.
FUNCTIONS ( Defrost Mode )
PRECOOL
HEATER
DEFROTING
PAUSE
FAN DELAY
1) PRECOOL
- Compressor runs ( to cool down the freezer compartment prior to heater switch on )
for 50minutes or until Freezer sensor temperature reaches -27C
2) HEATER DEFROSTING
- Defrost heater is switch on until Defrost Sensor temperature reaches 13C.
- Heater operation time
; 30 seconds - Heater is ON free of Defrost Sensor.
; 30 minutes - When Defrost Sensor is malfunction. ( D1 error )
; 80 minutes - Heater maximum operation time. ( F3 error )
3) PAUSE
- After Defrost Heater switch OFF, Compressor dosen't run within 7 minutes.
4) FAN DELAY
- Freezer & Refrigerator fan switch on after 5miunuts' cmopressor running.
PRECOOL
Defrsot Heater
Time
Division
Compressor
Freezer Fan
Refrigerator Fan
50min
ON
Off
OFF OFF ON
5min
OFF OFF
OFFOFF
OFF
ON
7min
OFF
PAUSEHEATER DEFROST
OFF OFF
FAN DELAY
30min ( D1 error )
80min ( F3 error)
ON
Control
Normal Mode
13

1. How to enter this check mode
; Press the FRZ. SET button 5 times while pushing the REF. SET button.
2. The Front LED displays the current error code ( if happens ).
3. How to exit this mode
1) Press the FRZ.SET button
2) After 4 minutes automatically exit.
4. Error Code
No
1
2
3
4
5
6
7
8
; All Error Code reset, when the relative parts turn into normal.
FUNCTIONS ( Error Display_Basic Model )
Display (LED flicker) Remark
Freezer sensor disconnection or short
Refrigerator sensor disconnection or short
Room temperature sensor disconnection or short
Defrost sensor disconnection or short
Refrigerator Door switch is defective.
Abnormal return after defrosting
Freezer Door switch is defective.
Abnormal or defective cycle
14

5. Troubleshooting when error happens
( If the relative parts is normal, Error code display will be reset. )
1) Freezer sensor error
- Cause : Freezer sensor disconnection or short.
- Check point : Measure the resistance between both terminals after separating CN9 of the Main PCB.
If sensor is disconnected or short, change that in the freezer compartment.
2) Refrigerator sensoer error
- Cause : Refrigerator sensor disconnection or short.
- Check point : Measure the resistance between both terminals after separating CN8 of the Main PCB.
If sensor is disconnected or short, change that in the refrigerator compartment.
3) Room temperature sensor error
- Cause : Room temperature sensor disconnection or short.
- Check point : Measure the voltage of sensor part on the Main PCB.
If voltage is 0.5~4.5V, normal. If voltage is 0V (short) or 5V (disconnect), change new one.
4) Defrost sensor error
- Cause : Defrost sensor disconnection or short.
- Check point : Measure the resistance between both terminals after separating CN9 of the Main PCB.
If sensor is disconnected or short, change that on the evaporator.
5) Refrigerator door switch error
- Cause : When it senses the door open for more than 1 hour.
- Check point : Check the each door switch and exchange.
6) Freezer door switch error
- Cause : When it senses the door open for more than 1 hour.
- Check point : Check the each door switch and exchange.
7) Cycle error
- Cause : When compressor works for over 3 hours although Defrost sensor is over -5C.
- Check point : Refrigerant leakage.
8) Abnormal defrosting end error
- Cause : in case defrosting mode ends after 80 minutes.
- Check point : Measure the resistance between both terminals of the defrost heater.
If the resistance is infinity (disconnection) or 0 ohm (short).
FUNCTIONS ( Error Display_Basic Model )
15

1. How to enter this check mode
; Press the SUPER FRZ. button 5 times while pushing the FRZ. SET button.
2. The Front LED displays the current error code ( if happens ).
; Every time you press the FRZ. Set button, the following value display.
1) The appliance running time. ( From the plug in. )
2) Freezer sensor temperature.
3) Defrost sensor temperature.
4) Refrigerator sensor temperature.
5) Room temperature.
3. How to exit this mode
1) Press the REF.SET button
2) After 4 minutes automatically exit.
4. Error Code
No
1
2
3
4
5
6
7
8
9
10
11
; All Error Code reset, when the relative parts turn into normal.
FUNCTIONS ( Error Display_Basic Model )
Display (Error Code) Remark
F1 Freezer sensor disconnection or short
r1 Refrigerator sensor disconnection or short
rt Room temperature sensor disconnection or short
d1 Defrost sensor disconnection or short
dr Refrigerator Door switch is defective.
dF Freezer Door switch is defective.
dH Home Bar Door switch is defective.
C1 Abnormal or defective cycle
F3 Return after defrosting : abnormal or defective
Co Pull-Down mode display (No error)
d2 Forced Defrost mode display (No error)
16

5. Troubleshooting when error happens
( If the relative parts is normal, Error code display will be reset. )
1) Freezer sensor error
- Cause : Freezer sensor disconnection or short.
- Check point : Measure the resistance between both terminals after separating CN9 of the Main PCB.
If sensor is disconnected or short, change that in the freezer compartment.
- Error code display
Freezer sensor is short. Freezer sensor is disconneted.
2) Refrigerator sensoer error
- Cause : Refrigerator sensor disconnection or short.
- Check point : Measure the resistance between both terminals after separating CN8 of the Main PCB.
If sensor is disconnected or short, change that in the refrigerator compartment.
- Error code display
Refrigerator sensor is short. Refrigerator sensor is disconneted.
3) Room temperature sensor error
- Cause : Room temperature sensor disconnection or short.
- Check point : Measure the voltage of sensor part on the Main PCB.
If voltage is 0.5~4.5V, normal. If voltage is 0V (short) or 5V (disconnect), change new one.
- Error code display
RT sensor is short. RT sensor is disconneted.
4) Defrost sensor error
- Cause : Defrost sensor disconnection or short.
- Check point : Measure the resistance between both terminals after separating CN9 of the Main PCB.
If sensor is disconnected or short, change that on the evaporator.
- Error code display
Defrost sensor is short. Defrost sensor is disconneted.
5) Refrigerator door switch error
- Cause : When it senses the door open for more than 1 hour.
- Check point : Check the each door switch and exchange.
6) Freezer door switch error
- Cause : When it senses the door open for more than 1 hour.
- Check point : Check the each door switch and exchange.
7) Cycle error
- Cause : When compressor works for over 3 hours although Defrost sensor is over -5C.
- Check point : Refrigerant leakage.
8) Abnormal defrosting end error
- Cause : in case defrosting mode ends after 80 minutes.
- Check point : Measure the resistance between both terminals of the defrost heater.
If the resistance is infinity (disconnection) or 0 ohm (short).
FUNCTIONS ( Error Display_Basic Model )
17

1. How to enter this check mode
1) Press the LOCK button.
2) Press the Super Freezer button 5 times while pushing the Freezer Set button.
2. The Front LED displays the current error code ( if happens ).
; Every time you press the Freezer Set button, the following value display.
1) The appliance running time. ( From the plug in. )
2) Freezer sensor temperature.
3) Defrost sensor temperature.
4) Refrigerator sensor temperature.
5) Room temperature.
6) P Factor display.
7) Filter remaing time until exchange. ( Filter runing time is about 4,320Hr )
3. How to exit this mode
1) Press the LOCK button
2) After 4 minutes automatically exit.
4. Error Code
No
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
; All Error Code reset, when the relative parts turn into normal.
Co Pull-Down mode display (No error)
d2 Forced Defrost mode display (No error)
C1 Abnormal or defective cycle
F3 Return after defrosting : abnormal or defective
EA Drop the ice while Et
Eu Full ice switch error
Et Horizontal switch error
Eg Water supply error
El Ice sensor disconnection or short
EF Flow sensor is defective.
dF Freezer Door switch is defective.
dH Home Bar Door switch is defective.
d1 Defrost sensor disconnection or short
dr Refrigerator Door switch is defective.
r1 Refrigerator sensor disconnection or short
rt Room temperature sensor disconnection or short
FUNCTIONS ( Error Display_Dispenser Models )
Display (Error Code) Remark
F1 Freezer sensor disconnection or short
18

5. Troubleshooting when error happens
( If the relative parts is normal, Error code display will be reset. )
1) F1 error
- Cause : Freezer sensor disconnection or short.
- Check point : Measure the resistance between both terminals after separating CN15 of the Main PCB.
If sensor is disconnected or short, change that in the freezer compartment.
- Error code display
Freezer sensor is short. Freezer sensor is disconneted.
2) R1 error
- Cause : Refrigerator sensor disconnection or short.
- Check point : Measure the resistance between both terminals after separating CN14 of the Main PCB.
If sensor is disconnected or short, change that in the refrigerator compartment.
- Error code display
Refrigerator sensor is short. Refrigerator sensor is disconneted.
3) rt error
- Cause : Room temperature sensor disconnection or short.
- Check point : Measure the voltage of sensor part on the Main PCB.
If voltage is 0.5~4.5V, normal. If voltage is 0V (short) or 5V (disconnect), change new one.
- Error code display
RT sensor is short. RT sensor is disconneted.
4) d1 error
- Cause : Defrost sensor disconnection or short.
- Check point : Measure the resistance between both terminals after separating CN15 of the Main PCB.
If sensor is disconnected or short, change that on the evaporator.
- Error code display
Defrost sensor is short. Defrost sensor is disconneted.
5) Door switch error ( dr, dF, dH on display )
- Cause : When it senses the door open for more than 1 hour.
- Check point : Check the each door switch and exchange.
6) EI error
- Cause : Ice sensor is abnormal.
- Check point : Measure the resistance between both terminals after separating CN11 of the Main PCB.
If sensor is disconnected or short, change that in the automatic ice maker.
FUNCTIONS ( Error Display )
19