Daewoo FRP-301D Series User manual

Dec. 2014.
Ver. 1.0
● Notice )
RF : R-134a (Refrigerant)
RN : R-600a (Refrigerant)
F/Model : FRP-301D..
B/Model: RF-331D..
RN-331D..
Service Manual
~ Ballista Dispenser ~
RFP301DCP8

WARNINGS AND PRECAUTIONS FOR SAFETY
Please observe the following safety precautions in order to use safely and correctly the refrigerator
and to prevent accident and danger during repair.
1. Be care of an electric shock. Disconnect power cord from wall outlet and wait for more than
three minutes before replacing PCB parts.
Shut off the power whenever replacing and repairing electric components.
2. When connecting power cord, please wait for more than five minutes after power cord was
disconnected from the wall outlet.
3. Please check if the power plug is pressed down by the refrigerator against the wall.
If the power plug was damaged, it may cause fire or electric shock.
4. If the wall outlet is over loaded, it may cause fire.
Please use its own individual electrical outlet for the refrigerator.
5. Please make sure the outlet is properly earthed, particularly in wet or damp area.
6 Use standard electrical components when replacing them
6
.
Use
standard
electrical
components
when
replacing
them
.
7. Make sure the hook is correctly engaged.
Remove dust and foreign materials from the housing and connecting parts.
8. Do not fray, damage, machine, heavily bend, pull out or twist the power cord.
9. Please check the evidence of moisture intrusion in the electrical components.
Replace the parts or mask it with insulation tapes if moisture intrusion was confirmed.
10. Do not let the customers repair, disassemble and reconstruct the refrigerator for themselves.
It may cause accident, electric shock, or fire.
11. Do not store flammable materials such as ether, benzene, alcohol, chemicals, gas, or
medicine in the refrigerator.
12. Do not put flower vase, cup, cosmetics, chemicals, etc., or container with full of water
on the top of the refrigerator.
13 Do not put glass bottles with full of water into the freezer
13
.
Do
not
put
glass
bottles
with
full
of
water
into
the
freezer
.
The contents shall freeze and break the glass bottles.
14. When you scrap the refrigerator, please disconnect the door gasket first and scrap it
where children are not accessible.

1-1. Model Information
Freezer
Refrigerator
Refrigerator Lighting
1. SPECIFICATIONS
* is the Door Type
Buyer No.
Factory No.
Control Type KNOB & Digital Smart Control
Gross Vol.
ISO 15502
(unit: L)
Total
Storage Vol.
ISO 15502
(unit: L)
Total
Freezer
Refrigerator
302
84
218
Diemension
(unit: mm)
Net Width (Packing)
Net Depth (Packing)
Net Height (Packing)
595(634)
650(685)
1870(1970)
Freezer Fan Motor
Refrigerant Charge 0.044kg
Evaporator Type Fin Type
Condenser Type
Capillary Tube (unit: mm) ID0.7 x T0.55 x L2290
Defrost Shape Sheath Type
AC(A+) / DC(A++) MOTOR
Heater
Defrost Type Automatic Start & Stop
Defrost Heater AC230V, 130W
Net Weight (Packing)
Blowing Agent C-Pentane
Cooling Cycle
Refrigerant Type R-600a
Bulb LED 1.2W x 1EA
Natural Convection Cooling System
Dryer Desiccant: Molecular Sieve xH-9
67(73)kg
RN-33*D
RFP-30*D*P8N
335
111
224
1

1-2. Interior Parts
1. SPECIFICATIONS
1. Refrigerator Shelves
2. Lamp Window
3. Multi Duct
4. Knob R Control
5. Cover Vegetable Case
6. Vegetable Case
7. Refrigerator Pocket "R"
8. Refrigerator Pocket "J"
9. Freezer Shelves
10. Freezer Case "A"
11. Freezer Case "B"
12. Adjusting Leg (Left)
13. Adjusting Leg (Right)
14. Tank Water AS
15. Wine Rack [Option]
9
2
3
4
7
5
6
1
10
10
11
12 13
8
14
15
4

1-3. Machine (Compressor) Compartment View
1. SPECIFICATIONS
1.Box Power As (Capacitor Run)
2. Power Cord
3. Switch P Relay As
4. Earth Comp Wire
5. Fixture Compressor (Washer)
6. Drain Hose
7. Compressor Absorber
8. Suction Pipe As
9. Dryer As
10. Case vaporization As
11.Pipe connector A
12. Pipe Wire Condensor As
13. Pipe Hot
- Features are model dependent
1
2
4
3
5 8 9 10 11
12
13
6 7
5

1-4. Refrigerant Cycle
- Welding Point
1. SPECIFICATIONS
Copper Welding ( Ag 5%) 5 Point
Silver Welding ( Ag 30%) 3 Point
Suction Pipe
Capillary Tube
Evaporator
Compressor Pipe connector A Dryer
①
②
③
④
⑤
⑥
⑦
⑧
6

1-5. Temperature Diagram
; The actual inner temperature varies depending on the food status, as the indicated setting temperature is a
target temperature, not actual temperature within refrigerator.
; Refrigeration function is weak in the initial time.
Please adjust temperature as above after using refrigerator for minimum 1 ~ 2 days.
1. SPECIFICATIONS
* Features are model dependent
Refrigerator Dial Mode
MIN: 5 ~ 8℃
MID: 2 ~ 5℃
MAX: -1 ~ 2℃
Vegetable compartment
: 1 ~ 5℃
Freezer Mode
LOW: -17 ~ -19℃
MID: -19 ~ -22℃
HIGH: -22 ~ -25℃
7

1-6. Wiring Diagram
1. SPECIFICATIONS
8

1.7. Main PCB Circuit Diagram
1. SPECIFICATIONS
9

2. FUNCTIONS
-PCB Volume
CONTROL OBJECTINPUT
- Turn 'DIAL KNOB' on the 'COVER M/FLOW
DUCT'.
2-1. "PCB VOLUME" Control
PCB VOLUME
&
R SENSOR
DIAL KNOB
- Features are model dependent
<'COVER M/FLOW DUCT AS': Air Duct Device in the Refrigerating Compartment>
- Temperature is controlled by "PCB Volume" assembled with "Dial Knob".
- 16step(0step ~ 15step) mode of successive temperature mode
- Each model is diffrent using range.
step 4 ~ step 14
10

2. FUNCTIONS
A. COMP and FAN will be controlled by the on/off condition of each mode.
B. Temperature Difference of Refrigerator each step :
C. Temperature of Refrigerator at Mid-'Dial Knob' OFF point :
- 3.0℃
D. Refrigerator ON/OFF Temp.
Difference: 2.1~2.3℃
E. Temperature of Freezer Control
-It will be only controlled by using “KNOB F LOUVER” in the Freezer Comaprtment.
- COMPRESSOR
- FAN
CONTROL OBJECTINPUT
- Turn 'DIAL KNOB'
- R sensor
2-2. Temperature Control of Refrigerator Compartment
3 4 5 6 7 8 9 10 11 12 13 14
9.8 9.0 8.3 7.5 6.7 6.0 5.2 4.5 3.8 3.0 2.3 1.6
7.5 6.7 6.0 5.2 4.5 3.8 3.0 2.3 1.6 0.9 0.2 -0.6
STEP
ON(℃)
OFF(℃)
MIN MID MAX
2.3 2.3 2.3 2.3 2.2 2.2 2.2 2.2 2.2 2.1 2.1 2.2
ON/OFF DIFF
11

2. FUNCTIONS
- Compressor
- F Fan
- Defrost Heater
A. Defrost Mode Operation conditon
(1) In case accumulated compressor run times: 6, 8, 10, 12 hours,
- when there occur any errors:
R1, D1, C1, RT, Door SW error etc. (Check "2-9. ERROR DISPLAY")
- or, running rate of COMP (per 2hrs of accumulated operation time) is more than 90%
- or, accumulated door open time is over 2 minutes
- or, ambient temperature (RT) is more than 39.1℃
(2) Even if the above condition is not satisfied,
defrost mode starts immediately when accumulated compressor run time is 14hrs.
B. Normal Defrost Mode
C. Forced Defrost Mode
- How to start:
(1) by press Door S/W for continuously and Control 'Dial Knob'(MIN -> MAX) 1 times.
(2) or, by press 'Test Key' 3 times on Main PCB
- If appliance has any error, Forces Defrost Mode don't start.
- Process: same as Normal Defrost Mode except 'PRE-COOL'
※Heater is supposed to be on Initial 30sec. even though the temp. at “D SENSOR” is
over 13℃. (for TEST)
- How to confirm: If Force Defrost Mode start, you can buzzer sound
CONTROL OBJECTINPUT
- Accumulated Compressor Run Time
- Running Time Ratio of Compressor
- Accumulated Door Open Time
- Ambient temperature (RT)
2-3. Defrost Mode
'PRE-COOL'
• Comp ON, Fan On, Heater OFF
• Comp runs for 25min. before defrost mode
Defrost
Heater on
• Comp OFF, Fan OFF, Heater ON
• Heater off when 'D-Sensor' is over 10℃.
• Heater off after 60min. at normal control.
• Heater off after 40min. in case D1 error.
Pause
• Comp OFF, Fan OFF, Heater OFF
• 10minutes.
Normal
Operation
12

2. FUNCTIONS
2-3. Defrost Mode
D. Flow chart of How to Start Defrost Mode
※A.C.R.T. : Accumulated Compessor Run Times
※R.R.O.C. : Running Rate of Compressor
※RT: Ambient temperature
Start
Yes
No
A.C.R.T.= 6,8,10,12hours
No
Yes
Any Error
No
Yes
R.R.O.C.(per 2hrs of A.C.R.T.)≥90%
No
Yes
Accumulated Door Open Time≥2min.
No
Yes
RT≥39.1℃
No
Yes
A.C.R.T.≥ 14hours
Defrost Mode Start End
13

2. FUNCTIONS
- R HTR
- COMP
A. Condition of LOW RT
- RT sensor below 20.7℃
- When the RT sensor is over 21.7℃, the system comes to be “General Operation Mode”.
- When the RT sensor is between 20.7°C to 21.7°C, the system keeps the previous mode.
B. Control
- When the temp of RT sensor is between 13.8°C to 20.7°C, COMP on/off temp is 0.67°C UP
- When the temp of RT sensor is below 13.8°C, COMP ON/OFF temp is 1.0°C DOWN
CONTROL OBJECTINPUT
RT
2-4. Function of Low Ambient Temperature (RT)
COMP
It takes several minutes to protect Compressor:
(1) 6 minutes after Comp off
(2) 30 minutes at operation of Low RT, but 6 minutes when the doors open more than 20 seconds
CONTROL OBJECTINPUT
2-5. Prevention of Compressor Restart
Buzzer
A. When Forced Defrost Mode start, the buzzer rings 3times.
B. After 2 seconds power’s on, the buzzer rings 3 times.
C. At Short Circuit Test, the buzzer rings 1 times.
D. When door opens, the buzzer rings every 1 minute for 5 minutes.
CONTROL OBJECTINPUT
- Forced Defrost Mode start
- Door Switch
- Initial Power Input
2-6. Buzzer Sound
N/A
14

2. FUNCTIONS
Buzzer
A. How to Save
- 1 min : Click FAST KEY one time on MAIN PCB.
- 30 min : If you press FAST KEY continuously, you can reduce 30 minutes on each 2.5 seconds with
buzzer.
B. Example for usage: when reduce test time
CONTROL OBJECTINPUT
”FAST KEY”
2-7. Time Saving Function
Test Key
(purchased separately)
Fast Key
(purchased separately)
LED
MAIN PCB
15

2.FUNCTIONS
Control Resistance of R sensor OFF Point
- When the refrigeration of refrigerator is poor or weak though Fan and COMP are working continuously,
the following actions are recommended for service.
(1) Resistance (R25) : Default resistance (31.4Kohms)
(2) Resistance (R25+R26) :
Cut the “J2” off to reduce Default R sensor OFF Point by 1.5°C. (2Kohms up)
(3) Resistance (R25+R26+27) :
Cut the “J1” off additionally to reduce Default R sensor OFF Point by 3.0°C. (total 4Kohms up)
※R25 = R-SENSOR OFF point
R25 + R26 = R-SENSOR OFF point - 1.5°C
R25 + R26 + R27 = R-SENSOR OFF point - 3°C
CONTROL OBJECTINPUT
”J1” , “J2” On Main PCB
2-8. Control of R-sensor OFF Point
16

2. FUNCTIONS
- ERROR DISPLAY
- If appliance has any errors, LED on the Main PCB is flickering.
- If the appliance is normal (no error), LED IS off.
A. 'R1' ERROR
: It happens when R-Sensor is OPEN or SHORT.
(1) LED DISPLAY: Shortly flickering(0.3sec.) 1 times.
(2) CONTROL:
Controlled by the following condition of RT
※If 'RT ERROR' happens at the same time, “COMP. ON/OFF Operating Time” is 16min/24min.
(3) RELEASE: When R-Sensor is working normally.
B. 'RT' ERROR
: It happens when RT-Sensor is OPEN or SHORT.
(1) LED DISPLAY: Shortly flickering(0.3sec.) 2 times.
(2) CONTROL: Delete the conditions of 'RT-sensor Control' and operate normally.
(3) RELEASE: When RT-Sensor is working normally.
C. 'd1' ERROR
: It happens when D-Sensor is OPEN or SHORT.
(1) LED DISPLAY: Shortly flickering(0.3sec.) 3 times.
(2) CONTROL: Return to next limit defrost time (40 min)
(3) RELEASE: When D-Sensor is working normally.
D. 'DR' ERROR
: It happens when the system senses door opens more than 1 hour.
(1) LED DISPLAY: Shortly flickering(0.3sec.) 4 times.
(2) CONTROL: Delete function relating to door switch sensing
(3) RELEASE: When sensing close from door S/W.
E. 'F3' ERROR
: It happens when Defrost Heater off after 60min.
(1) LED DISPLAY: Shortly flickering(0.3sec.) 5 times.
(2) CONTROL: Skip the step 'PRE-COOL' of Defrost Mode.
(3) RELEASE: Defrost Heater off by D-Sensor.
※When pusing 'TEST KEY' on the main PCB,
LED is long(1.0sec.) flickering several times.
ex. 'Forced Defrost Mode:' long flickering 2 times
LED Lamp
CONTROL OBJECTINPUT
Sensor Error
2-9. Error Display
6/34
~13.8
10/30
~20.7
16/24
~30.6
20/20
31.2~
COMP. Operating ON/OFF TIME
(unit: min.)
RT sensor TEMP (unit: ℃)
-To Confirm Errors:
Check LED on the main PCB
- The Priorities of Error :
R1→RT→D1→DR→F3
DR Switch
4times
DR
D sensor3times
d1
RT sensor2times
RT
R sensor
1time
R1
ERRORLEDCODE
flicker
Defrost5timesF3
17

3-1. Tank water as
3. DISASSEMBLY
18 (2)

3-2. Door Switch
3. DISASSEMBLY
18

3. DISASSEMBLY
3-3. Cover Multi-Flow Duct As (in Fresh food Compartment)
19