Samsung RFG297HDWP-XAA, RFG297HDBP-XAA, RFG297HDPN-XAA, RFG297HDRS-XAA User Manual

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Publication # nwRFG297HD Revision Date 09/28/11

Models Covered:

RFG297HDBP/XAA RFG297HDPN/XAA RFG297HDRS/XAA RFG297HDWP/XAA

Self Diagnosis: Press both buttons (Energy Saver– Lighting) simultaneously (No sound when both buttons are pressed at the

same time) ‟til the display quits blinking and

beeps, 8-12 seconds, then release and read Fault Codes. This will also cancel the Fault Mode created by self-diagnosis at power up.

Forced Mode: Press both buttons (Energy Saver– Fridge) simultaneously (No sound when

both buttons are pressed at the same time) „til it

beeps and goes blank, 8-12 seconds

IMPORTANT SAFETY NOTICE – “For Technicians Only” This service data sheet is

intended for use by persons having electrical, electronic, and mechanical experience and knowledge at a level generally considered acceptable in the appliance repair trade. Any attempt to repair a major appliance may result in personal injury and property damage. The manufacturer or seller cannot be responsible, nor assume any liability for injury or damage of any kind arising from the use of this data sheet.

Fast Track Troubleshooting

Wait 5 seconds between button pushes

3600RPM 2450RPM 2200RPM

Press Freezer button one time at the Test Mode to Force Compressor High Speed Run, measure fan and Compressor voltages at main PCB

Sealed System

1. Compressor → Sub-condenser → Hot Pipe → Back Cluster Pipe → Dryer → R Capillary Tube → Refrigerator Evaporator → Connected Capillary → Freezer Evaporator → Suction Pipe → Compressor

2. Compressor → Sub-condenser → Hot Pipe → Back Cluster Pipe → Dryer →F Capillary Tube → Freezer Evaporator → Suction Pipe → Compressor

Press Freezer button a second time to Force Mid Speed Run

Refrigerant Charge

R134a 5.64 oz.

Press Freezer button a third time to Force Low Speed Run

Sales Mode, No Compressor Operation

Press Energy Saver & Freezer temp buttons

simultaneously for 3 sec ( you will hear a “Ding Dong”) to remove or put into Sales Mode. When in

the Sales Mode the Display will show "OF" "OF"

Removing power will not cancel this mode.

Component Resistance Wattage Voltage

Freezer Defrost Heater 60Ω 240 120vac

Fridge Defrost Heater 120Ω 120 120vac

French Mullion Heater 1800Ω 8 120vac

Ice Duct Heater 3600Ω 4 120vac

Dispenser Heater 7200Ω 2 120vac

Water Tank Heater 72Ω 2 12vdc

Sensors 2.5kΩ-89kΩ N/A 1~4.5vdc

Fans N/A N/A 7~12vdc

Press Freezer button a forth time to Force Defrost of Fridge & Freezer, measure defrost voltage at main PCB

Component Value Chart

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DC FAN MOTORS

Brushless DC Fan motors are used to save energy. The fans operate at two speeds. Fan speed information is read by the Main PCB. If the fan speed exceeds 600 RPM or the speed is too slow, or stopped the fan drive circuit is disabled, After 10 seconds the circuit tries again with 3 seconds of DC voltage If the fan continues this activity for 5 cycles, 10 seconds off 3 seconds on, the fan drive circuit is disabled for 10 minutes.

TO TEST THE FAN CIRCUIT VOLTAGE.

Power off and back on to check the DC voltage to the motor, wait from 10 to 60 seconds for the fan voltage to kick in, and then check fan voltage, the average reading is 9 VDC. If you get 3 seconds of voltage every 10 seconds for the 5 fan power up cycles, then the Main PCB is good.

NOTE: You may need to put unit in FORCED FREEZE mode to activate the fans/compressor. If the fan blade is blocked by ice, then defrost and check the motor again, after removing power from the unit. If the evaporator is ice blocked and thus blocking the air flow, the fan will over RPM and is stopped. Remove ice and

check the motor again. If everything is clear around the fan blade then the motor would be at fault. Continuous fan errors will be displayed on the front panel display. PLEASE NOTE: The door switches control the evaporator fan motors. Have them closed to test the motors. Delay time 10 – 60 seconds.

Heat Release Ice Makers

Heat Release Ice production Explanation

38 minutes after the water fill is complete, the control board will check the temperature of the eject Thermistor, on the Ice Maker Head, if the Thermistor reads a temperature lower than 18.5 degrees for more than 5 seconds, then the ice production process is completed. The Ice maker will harvest if the ice bucket is not sensed as full. If a Fault Mode is detected with the Ice Maker operation, the Ice Maker stops working for 3 hours. Which means, the Ice Maker checks the operation every 3 hours until it works properly.

FREEZER TEMPERATURE CONTROL BY THE ICE MAKER

Interior Temperature of the freezer will be set to -14 degrees Fahrenheit until the ice bucket is full. When the ice bucket is full, the freezer will maintain original set temperature. Also, whenever the ice is used, the freezer will again set to -14 degrees Fahrenheit. Selecting "Ice Off” will allow the freezer to be controlled by the set tem- perature. If water is not hooked up, the freezer will always be at –14 unless “Ice Off” is selected.

Temperature/Resistance/Voltage Chart for Samsung Refrigerators Sensors

Heat Release I/M Test Mode

Press and hold the ICE TEST S/W for at least 1.5sec, the harvest function will start. If the ice maker Thermistor is below 0 degrees the Ice maker heater turns on for about 2 minutes. If the temperature exceeds 0 degrees, Ice maker heater turns on for 30 seconds. After the Ice maker heater turns on for 30 seconds, the heater turns off and then Ice maker harvest motor turns on. The motor will rotate in right direction for about 3 minutes, after this, water supply valve is turned on, then the valve is turned off, the test mode is completed. If the above operation is not carried out within 6 minutes, it will go into a fault mode.

Temp. (Ω) Volts Temp. (Ω) Volts Temp. (Ω) Volts Temp. (Ω) Volts

-29.2°F 64227 4.326 1.4°F 28021 3.685 32.0°F 13290 2.853 62.6°F 6771 2.019

-27.4°F 61012 4.296 3.2°F 26760 3.64 33.8°F 12749 2.802 64.4°F 6521 1.974

-25.6°F 57977 4.264 5.0°F 25562 3.594 35.6 °F 12233 2.751 66.2°F 6281 1.929

-23.8°F 55112 4.232 6.8°F 24425 3.548 37.4 °F 11741 2.7 68.0°F 6052 1.885

-22.0°F 52406 4.199 8.6°F 23345 3.501 39.2 °F 11271 2.649 69.8°F 5832 1.842

-20.2°F 49848 4.165 10.4°F 22320 3.453 41.0°F 10823 2.599 71.6°F 5621 1.799

-18.4°F 47431 4.129 12.2°F 21345 3.405 42.8°F 10395 2.548 75.2°F 5225 1.716

-16.6°F 45146 4.093 14.0°F 20418 3.356 44.6°F 9986 2.498 77.0°F 5000 1.675

-14.8°F 42984 4.056 15.8°F 19537 3.307 46.4°F 9596 2.449 78.8°F 4861 1.636

-13.0°F 40938 4.018 17.6°F 18698 3.258 48.2°F 9223 2.399 80.6°F 4690 1.596

-11.2°F 39002 3.98 19.4°F 17901 3.208 50.0°F 8867 2.35 86.0°F 4218 1.483

-9.4°F 37169 3.94 21.2°F 17142 3.158 51.8°F 8526 2.301 87.8°F 4072 1.447

-7.6°F 35433 3.899 23.0°F 16419 3.107 53.6°F 8200 2.253 89.6°F 3933 1.412

-5.8°F 33788 3.858 24.8°F 15731 3.057 55.4°F 7888 2.205 91.4°F 3799 1.377

-4.0°F 32230 3.816 26.6°F 15076 3.006 57.2°F 7590 2.158 95.0°F 3547 1.309

-2.2°F 30752 3.773 28.4°F 14452 2.955 59.0°F 7305 2.111 96.8°F 3428 1.277

-0.4°F 29350 3.729

30.2°F 13857 2.904 60.8°F 7032 2.064 100.4°F 3204 1.213

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Error Code Item Trouble contents

1 E 2 E 4 E 5 E

6 E

7 E 13 E 14 E

15 E

21 E

22 E

23 E

FZ SENSOR ERROR

R SENSOR ERROR

FZ DEF SENSOR ERROR

R DEF SENSOR ERROR

AMBIENT-SENSOR ERROR

FLEX SENSOR ERROR

HUMIDITY-SENSOR ERROR

IM SENSOR ERROR

ICE RM SENSOR ERROR

FZ FAN ERROR

R FAN ERROR

C-FAN ERROR

The respective sensor is read as open or shorted, check the wiring

connections in the respective compartment and at the Main PCB

The Humidity sensor is read as open or shorted, check the wiring

connections in the respective compartment and at the Main PCB

The respective sensor is read as open or shorted, check the wiring

connections in the respective compartment and at the Main PCB

The Freezer Fan motor is read as not connected or the fan has

stopped, check the wiring connections in the freezer and at the Main

PCB

The Ref. Fan motor is read as not connected or the fan has

stopped, check the wiring connections in the freezer and at the Main

PCB

The Comp. Fan motor is read as not connected or the fan has

stopped, check the wiring connections in the freezer and at the Main

PCB

24 E

25 E

39 E

40 E

41 E 81 E 82 E 83 E 84 E 85 E 86 E

FZ DEF FUNCTION ERROR

R DEF FUNCTION ERROR

IM FUNCTION ERROR The Icemaker release heater reads as open circuit

ICE-ROOM-FAN ERROR

MAIN<->LCD COMM ERROR

COMP STARTING FAILURE

COMP IPM FAULT ERROR Inverter power control issue, Check the Inverter Drive PCB

COMP ABNORMAL CUR-

RENT DETECTION

COMP MOTOR LOCKED

OVER RPM ERROR

COMP UNDER VOLTAGE

COMP OVER VOLTAGE

The freezer defrost heater is read as open or the heater has been

heating continuously for more than 80 minutes.

The refrigerator defrost heater is read as open or the heater has

been heating continuously for more than 80 minutes.

The Ice Room Fan motor is read as not connected or the fan has

stopped, check the wiring connections in the freezer and at the Main

PCB

The Main PCB and the LCD display are not communicating properly

verify the wiring at both PCB’s

The compressor did not start properly, check for an overload condi-

tion

Excessive current detected at the Compressor check the compres-

sor windings for shorts

Compressor Over speed error check for low refrigerant levels

Low voltage to the compressor Check the DC supply from the Main

PCB

Over voltage to the compressor Check the DC supply from the Main

PCB

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CN02 Overload & A/C Line 1 OLP (Brn) 3 OLP (S/Blu) 3 L (Red) 1 N (Gry)

CN04 Compressor Control 1-(CN76-1) +13vdc (Blk-Gry) 2-(CN76-1) 5vdc (Brn-Gry)

4 Comp Signal (Org) CN75 To Comp Inverter Board 2- ( CN76-1) (Brn-Gry) 5vdc 4- ( CN76-1) Comp control (Org-Gry) 2.5vdc

TEST BEFORE INTERPRETING LED BLINKING FREQUENCY Compressor not running

1. Activate Forced Compressor Operation, wait 2 minutes (in case of high head pressure)

2. If compressor doesn’t start, check CN75 for 2.5vdc (if not there replace Main PCB)

3. If voltage is OK, remove power, disconnect CN03 (Inverter PCB) and check resistance to the

windings. Aproxametly10 ohms. If not correct , inspect wire harness, if OK replace compressor.

4. Disconnect CN02 (SMPS PCB), check resistance to Overload , if open replace overload.

The Time Divided Multi-cycle (TDM) System (Stepper Valve) is used to switch refrigerant flow . This improves temperature control

and energy efficiency.

If it fails in the all evaporator mode, it should work properly, using slightly more energy. If it fails in the Freezer evaporator only mode,

there will be a Fridge no cool Force on the Fridge with the “Power Cool” option. Monitor the Fridge evaporator(s) temp by using the Defrost Sensor(s). If the temp doesn’t decrease, then suspect the

Main PCB is not supplying signal to switch the diverter valve.

Compressor & System Operation Testing

CN03 Compressor Windings 1 Compressor (Blue) 3 Compressor (Prp) 5 Compressor (Wht)

Protection

Functions

LED Blinking Frequency

Test

Replace

Starting Failure

Check the Inverter PCB & Comp

Relay Connectors

Connectors OK,replace Inverter PCB, if same,

replace compressor

SPM Fault

If blinking after reset,

Check System for restriction & refrigerant, if OK

replace Inverter, if same, replace compressor

Detecting

Position Failure

Check Inverter Connectors,

Connectors measure OK, replace compressor, if

same, replace Inverter PCB

Motor Locked

Compressor Locking

Compressor

Low Voltage

Compressor Locking, check input

voltage

Replace Inverter PCB, if same, replace

Compressor

Over Voltage

Compressor Locking, check input

voltage

Replace Inverter PCB, if same, replace

Compressor

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TO TEST THE FAN CIRCUIT VOLTAGE.

Heat Release Ice Makers

Heat Release Ice production Explanation

38 minutes after the water fill is complete, the control board will check the temperature of the eject Thermistor, on the Ice Maker Head, if the Thermistor reads a tem- perature lower than 18.5 degrees for more than 5 sec- onds, then the ice production process is completed. The Ice maker will harvest if the ice bucket is not sensed as full. If a Fault Mode is detected with the Ice Maker op- eration, the Ice Maker stops working for 3 hours. Which means, the Ice Maker checks the operation every 3 hours until it works properly.

FREEZER TEMPERATURE CONTROL BY THE ICE MAKER

Temperature/Resistance/Voltage Chart for Samsung Refrigerators Sensors

Heat Release I/M Test Mode

Press and hold the ICE TEST S/W for at least 1.5sec, the harvest function will start. If the ice maker Thermistor is be- low 0 degrees the Ice maker heater turns on for about 2 min- utes. If the temperature exceeds 0 degrees, Ice maker heater turns on for 30 seconds. After the Ice maker heater turns on for 30 seconds, the heater turns off and then Ice maker harvest motor turns on. The motor will rotate in right direction for about 3 minutes, after this, water supply valve is turned on, then the valve is turned off, the test mode is com- pleted. If the above operation is not carried out within 6 min- utes, it will go into a fault mode.