Samsung RS21 Service Manual

If your refrigerator is not dispensing water, first check the water hose for folding or fastening. Also check the ice-water-way and solenoid valve, and the wires of the ice-maker. To dispense water, depress the water dispenser lever located in the dispenser recess, which opens the water solenoid valve in the machine compartment.

Was this helpful? How do I adjust the temperature settings on my Samsung RS21 refrigerator?

For the freezer, press the Freezer Temp. button. The display will show the set temperature from -14°C to -25°C in sequence.
For the refrigerator, press the Fridge Temp. button. The display will show the set temperature from 1°C to 7°C in sequence.

Was this helpful? Why is my Samsung RS21 refrigerator not dispensing ice?

The ice-ejector S/W, door S/W, and ice moving motor.
The wire in the Ice moving Motor section for cuts.
The water hose for folding or fastening.
The ice-water-way and solenoid valve.
The wires of the ice-maker.
If MICOM No. 25 turns 5V when pressing Ice S/W.
If IC3 No. 18 turns 0V when pressing Ice S/W.
The contact shelf of RY77 relay when pressing ICE S/W.
The wire between the AUGER motor and main PCB.
The cube solenoid itself or bad contact of its connector.

Was this helpful? Why is my Samsung RS21 refrigerator beeping?

Your refrigerator may be beeping due to the Door Open Alarm. If the doors remain open for 2 minutes, the refrigerator will beep 10 times. If the doors continue to remain open for more than 2 minutes, the additional beeps will occur at 1-minute intervals. The beeps will stop immediately when the doors are closed.

Was this helpful? How do I clear error codes on my Samsung RS21 refrigerator?

To clear error codes, you can either replace the bad sensor or cancel the function by pressing the Power Freeze and Power Cool buttons simultaneously for 8 seconds. If a sensor failure occurs, a corresponding LED segment will blink with a beep.

Was this helpful?

What is the recommended temperature setting for the refrigerator and freezer compartments of the Samsung RS21?

When the system power is initially engaged, the default set temperatures are -20°C for the freezer and 3°C for the refrigerator. The numbers on the digital display panel show the actual compartment temperatures, which will eventually reach the set temperatures once the system stabilizes.

Was this helpful? Why is my Samsung RS21 refrigerator not turning on?

Check if the 230V AC fuse is down. If so, exchange it and find the cause of disconnection.
Verify if power 230V is impressed to both terminals of CN
If not, check the assembly and connection of electric wires.
Check if the fuse on the main PCB is down. If so, exchange the 250V/2A fuse.
Confirm if DC 320V is impressed to both terminals of BD
If not, check the PCB pattern and replace BD
Check if the voltage impressed DC 5.8V between C and S of Top S/W 233Y. If not, replace the PCB assembly.
Check if 12V is impressed to both terminals of C
If not, replace D104 (D5S6M) or the PCB assembly.
Verify if the load such as relay is normal. If not, replace REG1(KA7805).
Check for PCB soldering, short or broken. If not, check the assembly of electric wires and troubleshoot, then replace the panel PCB. If it is, replace the corresponding relay or check the lead wire for contact.

Was this helpful? How do I reset the water filter indicator light on my Samsung RS21 refrigerator?

To reset the water filter indicator light and color, press the Ice Type button and Child lock button simultaneously for 3 seconds. The indicator initially lights green, changes to orange after 5 months, and turns red at the 6th month, as the EEPROM in the control board counts the period regardless of a power failure. If these two buttons are pressed simultaneously for 5 seconds, this function will cease. To restore it, press the buttons again for 3 seconds.

Was this helpful? How do I take my Samsung RS21 refrigerator out of 'off' or 'demo' mode?

To take the refrigerator out of exhibition mode, press the Power Freeze and Freezer Temp. buttons simultaneously for 8 seconds until a “ding-dong” sound is heard. This mode is for display purposes in showrooms, where most system functions work properly except for compressor operation and defrost cycles.

Was this helpful? Where is the water filter located in the Samsung RS21 refrigerator?

The water filter is located in the upper left-hand corner of the refrigerator. This filter is responsible for filtering water for both the ice maker and water dispenser.

Was this helpful? How do I reset my Samsung RS21 refrigerator after a power outage?

After a power outage, if the freezer temperature is maintained lower than 5°C, all functions on the display panel will be restored. If the freezer temperature is higher than 5°C, all functions will be initialized to default settings: -20°C for the freezer, 2°C for the refrigerator, and Cubed for the Ice Type. For more information, see page 39 of the manual.

Was this helpful? How do I manually defrost my Samsung RS21 refrigerator?

To manually perform a defrost cycle, press the Power Freeze and Fridge Temp. buttons simultaneously for 8 seconds to enter the ready mode for a forced operation. In this ready mode, press any button (except Ice Type and Child Lock) twice to begin the defrost cycle for the refrigerator, or three times for a defrost cycle for both the freezer and refrigerator. The beep sound will continue for 3 seconds at the beginning, then the ON/OFF pattern will continue until the defrost operation ceases. To cancel this function, either select the next mode on the ready mode, or simply unplug and replug the power cord.

Was this helpful? What are the typical dimensions of the Samsung RS21 refrigerator? The net dimensions (W×D×H) for the Samsung RS21 refrigerator are 908mm × 719mm × 1760mm. Was this helpful? How long does the water filter last in a Samsung RS21 refrigerator?

The water filter indicator initially lights green, then changes to orange after 5 months of operation, and turns red at the 6th month. The EEPROM in the control board counts this period regardless of a power failure.

Was this helpful? How do I remove the ice maker from my Samsung RS21 refrigerator?

Pull the shelf out as far as it goes.
Lift it up and pull it out from the unit.

Was this helpful? How do I access the ice maker in a Samsung RS21 refrigerator?

To access the ice bucket, which stores ice made by the ice maker and dispenses ice cubes, lift the ice bucket up and slide it out from the unit. The ice bucket is located in the upper portion of the freezer.

Was this helpful? How can I improve the energy efficiency of my Samsung RS21 refrigerator?

The Samsung RS21 refrigerator is designed for energy efficiency through its Twin Cooling System, which cools the freezer and refrigerator individually as required, and by distributing cool air separately to the refrigerator and freezer to keep power consumption to a minimum.

Was this helpful? How do I remove the doors from a Samsung RS21 refrigerator?

With the door closed, disassemble the screw by using a (+) screwdriver, then disassemble the upper hinge cover.
Disassemble bolts and screws counter-clockwise using a tool, and take off the upper hinge. Take care to ensure the door does not fall.
Disassemble the door from the lower hinge by lifting the door.
Disassemble the lower hinge from the bracket lower hinge by lifting it in the direction of the arrow.

Was this helpful? Can I force a defrost cycle on my Samsung RS21 refrigerator?

Yes, you can force a defrost cycle. Press the Power Freeze and Fridge Temp. buttons simultaneously for 8 seconds to enter the ready mode. In this mode, press any button (except Ice Type and Child Lock) twice to begin the defrost cycle for the refrigerator, or three times for a defrost cycle for both the freezer and refrigerator. The beep sound will continue for 3 seconds at the beginning, then the ON/OFF pattern will continue until the defrost operation ceases. To cancel this function, either select the next mode on the ready mode, or simply unplug and replug the power cord.

Was this helpful? How do I remove the shelves from my Samsung RS21 refrigerator?

Pull the shelf out as far as it goes.
Lift it up slightly and pull it out from the unit.

Was this helpful? How do I reattach the doors on my Samsung RS21 refrigerator after removal?

Insert the lower hinge into the bracket lower hinge.
Assemble the door into the lower hinge.
Insert the upper hinge shaft into the hole. After leveling between the upper hinge hole and the refrigerator hole, assemble bolts and screws clockwise using a tool.
Put the front part of the upper hinge cover on the front part of the upper hinge and assemble, starting with the front part of the upper hinge cover. Assemble the screw clockwise using a tool.

Was this helpful? What type of refrigerant does the Samsung RS21 refrigerator use? The Samsung RS21 refrigerator uses R600a as its refrigerant. Was this helpful?

Need help?

Do you have a question about the RS21 and is the answer not in the manual?

Ask a question Questions and answers Manuel Antonio Cambra Gonzalez February 11, 2026

I do not find the serial number of the auger or ice screw from this Samsung model RS21HDTSL

Same question (0) Add my comment Juan carlos morales February 22, 2025

I want to change the table/main board, how can I buy an original spare part of this device

Same question (0) Add my comment Mohammed Azam April 10, 2025

Samsung RS21WCNS how I can remove/replace fridge door handle which is broken?

Zoom image Same question (0) Add my comment 2 comments: Mr. Anderson April 10, 2025

To remove or replace the broken door handle on a Samsung RS21WCNS refrigerator:

1. Use a hex wrench to loosen the screws securing the handle.2. Gently pull the handle away from the door once the screws are removed.3. To install a new handle, align it with the mounting points.4. Insert and tighten the screws with the hex wrench.

Make sure not to overtighten and ensure the handle is secure.

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Mohammed Azam April 10, 2025

Samsung RS21WCNS, I am unable to locate any screws on the door handle they are visible Could you advise me where to look for it

August 9, 2025

Ice maker tray not ejecting ice in normal working conditions but the tray can be rotated using the test button

Same question (0) Add my comment 1 comments: Mr. Anderson September 10, 2025

The ice maker tray in the Samsung RS21 refrigerator may not eject ice if any of the following conditions are met:

1. The temperature under the ice tray is not maintained below -7°C for 5 minutes after 2 hours of leveling, so the tray twisting process does not start.2. The ice full switch is in the ON (“LOW”) position, indicating the ice bucket is full.3. The leveling switch is not in the OFF (“HIGH”) position.4. There is a failure in the Main PCB or its components, such as IC3 or RY77 relay.5. There is a wiring issue between the auger motor and the Main PCB.

Each of these conditions can prevent the ice maker from initiating the ice ejection process.

This answer is automatically generated

Nasir Qureshi May 27, 2025

what does "overload mode" means if upon checking loaded functions "overload mode" light is iluminated while referigerator SAMSUNG RS21NGRS is not cooling properly and both R Fan and F Fan are on low speed

Same question (0) Add my comment 1 comments: Mr. Anderson May 27, 2025

In the Samsung RS21NGRS refrigerator, "overload mode" refers to a condition where the system detects excessive load or strain, likely due to high temperature or motor resistance. When in this mode, components such as the R-Fan (Refrigerator Fan) and F-Fan (Freezer Fan) may run at low speed to reduce power consumption and prevent damage. This mode helps protect the compressor and other parts during abnormal operation, such as poor cooling performance.

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Сергей Александрович Шинкаренко April 20, 2025

холодильник самсунг RS21HNLBG что в холодильнике, что в морозильнке одинаковая температура -2, увеличивали температуру в морозильнике, все равно -2. В чем причина

Same question (0) Add my comment 1 comments: Mr. Anderson May 10, 2025

The likely reason for both the refrigerator and freezer of the Samsung RS21 showing a temperature of -2°C, despite increasing the freezer temperature, could be one or more of the following:

- The ambient room temperature is very low, affecting internal temperature control.- The temperature control settings may not be set correctly on the display panel.- Items with high water content may be placed in the coldest part of the fridge, affecting overall temperature.- The internal temperature adjustment may be compensating based on environmental factors like location, usage, and door opening frequency.

These factors can prevent the refrigerator from maintaining the set temperature properly.

This answer is automatically generated

April 11, 2025

Hi. My Samsung RS21 double door fridge is displaying R motor error code. May you please assist

Zoom image Same question (0) Add my comment 1 comments: Mr. Anderson April 11, 2025

The R motor error code for a Samsung RS21 double door fridge likely refers to an issue with the R-room fan motor. This fan may be an AC or BLDC motor. If it doesn't work, possible causes include:

1. No periodic NO waveform output from main PCB IC9 – replace the main PCB.2. Short or broken wires in CoolSelect Zone™ panel, freezer door wire, or CABI wire.3. Short/open circuit in the panel lighting section of the main PCB.4. BLDC fan motor delay after door operation at high ambient temperatures (normal delay, not an error).

So, the R motor error code indicates a fault with the fan motor or its control circuit.

This answer is automatically generated

Mohammed Azam April 10, 2025

Samsung RS21WCNS, I am unable to locate any screws on the door handle they are visible Could you advise me where to look for it

Same question (0) Add my comment 1 comments: Mr. Anderson April 10, 2025

The screws on the door handle of the Samsung RS21WCNS refrigerator are front mounted and use Phillips head screws.

This answer is automatically generated

michael wardman March 11, 2025

**** noisy in fridge RS21JLAT

Same question (0) Add my comment 1 comments: Mr. Anderson March 11, 2025

The Samsung RS21JLAT fridge is noisy because of ice buildup hitting the fan. This is caused by a faulty defrost heater, which needs to be replaced to fix the issue.

This answer is automatically generated

Manuel Antonio Cambra Gonzalez February 11, 2026

Or better, can I order the ice bucket from a Samsung regrigerator model RS21HDTSL in Amazon.

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