Samsung Refrigerator 22C Error: Freezer Sensor Fault Fix

Quick Answer

Samsung 22C is a freezer evaporator sensor fault that shares the 20s code range with other Samsung freezer-side sensor errors. The Samsung-specific context is that 22C and 39C often appear together or in sequence - 39C is the defrost system fault that occurs downstream after 22C allows the evaporator to ice over without proper sensor-guided defrost triggering.

I've been on Samsung 22C calls more times than I can count, and honestly, half the time the sensor itself is totally fine. It's the ice that's the real problem. Leave this code alone too long and you're looking at a full defrost system failure, and that's when a $25 sensor repair turns into a $300 job. Don't ignore it. The freezer will keep running for a bit, but it won't defrost properly, so things just get worse every day.

SamsungRefrigeratorSeverity: highDifficulty: intermediate80% DIY Success

Time to Fix

45–90 min

Difficulty

intermediate

Parts Cost

$10 – $70

Tools Needed

Multimeter (ohm mode), Phillips screwdriver

What Does the 22C Code Mean?

Here's the deal with 22C: your freezer is basically flying blind. The control board can't see what temperature the evaporator coils are at, so it doesn't know when to run defrost or stop the compressor. I see this constantly on Samsung French Door and side-by-side units, usually right around the 5-7 year mark. The fix is usually cheap, maybe $20-30 for the sensor, but getting to the part takes some actual work.

Most Likely Causes

Based on aggregated repair data, here is the probability breakdown for this error code:

Freezer evaporator NTC sensor drift or internal failure40%

Sensor wiring harness broken or connector pulled loose24%

Sensor damaged from a prior repair or panel removal22%

Ice buildup encasing sensor, causing false readings14%

Symptoms You May Notice

22C blinking or sitting solid on the display, sometimes cycling together with a 39C code
Freezer is running at 15°F when it should be at 0°F and adjusting the temperature setting does absolutely nothing
Pull out the freezer shelves and the entire back wall is one thick solid sheet of ice, sometimes an inch or two deep
Compressor sounds like it's running constantly and never cycles off
Food toward the back of the freezer is partially thawed even though the unit sounds like it's working fine

Can you reset a Samsung refrigerator to clear the 22C code?

Do a hard power cycle first. Unplug the refrigerator for a full ten minutes, not thirty seconds, ten minutes. That clears the control board memory completely. When you plug it back in, give it an hour to stabilize before you decide anything. If the sensor is actually bad, the 22C code will be back within that first hour. For a soft reset you can hold the Lighting and Fridge buttons for five seconds, but honestly for a 22C that's usually just delaying the inevitable.

Tools Required for Diagnosis

Multimeter (ohm mode)Phillips screwdriverNut driver (1/4")Hair dryer (manual defrost if needed)TowelsFlashlight

Service / Diagnostic Mode

Hold Energy Saver + Fridge buttons simultaneously for 8 seconds until the display flashes. Active error codes will appear on the segment display. Press Fridge button to scroll through stored codes.

Diagnostic Checklist

Follow these steps in order. We start with the easiest external fixes before opening up the machine.

ComponentComponent Under Test

Expected Range4500–5500 ohms

ConditionIf Open (OL) or infinite, replace component.

Replacement Parts

If your diagnostic testing proves the component has failed, you will need a replacement. We recommend OEM parts over aftermarket for water-handling components.

Part Name	OEM Number	Estimated Price
Samsung Freezer Evaporator SensorDA32-10104N · $10–$25	DA32-10104N	$10 – $25
Samsung Defrost Heater AssemblyDA47-00244Q · $30–$70	DA47-00244Q	$30 – $70

Frequently Asked Questions

What's the difference between Samsung 22C and 39C?

Think of 22C as the sensor that reads how cold the evaporator coils are, and 39C as the sensor that tells the board when defrost is done. They're physically right next to each other on the evaporator. When one fails, the other usually ends up buried in ice too. If you're already opening up the freezer to replace one, just grab both. The 39C termination thermostat is like $15 and it'll save you from doing this whole job again three months from now. I replaced both on a French Door unit last Tuesday and the homeowner was happy they didn't have to call me back.

If my Samsung refrigerator shows both 22C and 39C, which do I fix first?

Always tackle the ice first. If you've got a 39C defrost error running alongside the 22C, there's probably a serious ice blockage back there, and that ice can insulate the 22C sensor and cause it to read falsely even if the sensor hardware is perfectly fine. I've seen plenty of 22C codes disappear completely once the unit was fully thawed and the defrost heater got replaced. If the 22C sticks around after a 24-hour manual thaw, then yeah, the sensor itself is definitely bad and needs to come out.

How do I read the freezer sensor value in Samsung service mode?

On most modern Samsung units, you'll hold Energy Saver and Fridge for about eight seconds until the screen flashes. The display will show a segment map with different error codes. Here's the thing though, every Samsung model uses a slightly different segment layout, so what means 22C on your RF28 might look different on an RS22. Check the tech sheet first. It's usually tucked under the front kickplate or taped to the back wall of the unit. That sheet maps out exactly which display segments correspond to which codes for your specific model.

Can I keep using my fridge while the 22C code is showing?

Honestly, for a day or two you're probably fine. The freezer keeps cooling because the compressor runs a default cycle when it loses sensor data. But without accurate sensor readings, the defrost cycle won't trigger correctly, so ice is building up on your evaporator coils right now as you read this. Give it more than a week and you might open the freezer to find everything thawed and a puddle on the floor. So use it if you need to, but get the part ordered today and fix it this weekend.

How much does it cost to fix a Samsung 22C error?

If it's just the sensor, you're looking at $20-30 for part DA32-10104N and maybe 45 minutes to an hour of your time once you get back there. If you're paying a tech, figure $150-200 total with the service call. Now, if the sensor failure led to a big ice buildup that also took out your defrost heater or termination thermostat, add another $30-60 in parts. Most of the time though it's just the sensor, and it's a completely reasonable DIY fix even if you've never touched a refrigerator before.

Related Samsung Refrigerator Error Codes

Code: HUBSamsung Refrigerator Error Codes: 39C, 33E, 40E and More Code: 39CSamsung Refrigerator 39C: Freezer Defrost Sensor Fault Code: 25ESamsung Refrigerator 25E: Fridge Defrost Sensor Fault Code: 2ESamsung Refrigerator 2E: Freezer Sensor Shorted

Same Fix Works on These Brands

Samsung shares the same hardware platform with these brands. The diagnosis and repair steps are identical.

Samsung washerSamsung Washer 3C2 Error Code: Motor Stall Samsung washerSamsung Washer 3E Error Code: Motor Fault Samsung washerSamsung Washer 4E Error Code: Water Supply Fault (Top Load)Samsung washerSamsung Washer 5C Error Code: Drain Error (Older Display)Samsung washerSamsung Washer 8C Error Code: Vibration Sensor Fault Samsung washerSamsung Washer 8E Error Code: Motor Frequency Sensor Fault

Models Known to Experience 22C Errors

This repair applies to most Samsung refrigerators with this error code. Common model numbers include:

RF28HMEDBSR, RF28R7351SR, RS22T5201SR, RF23M8070SR, RF28K9070SR, RF22R7351SR, RF263BEAESR, RF28JBEDBSG

Written by

Mike Sullivan

Lead Appliance Repair Technician · 20 years experience

Last verified for technical accuracy on March 14, 2026