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ErrBase

Samsung Fridge 5E Error Code: Defrost Sensor Repair Guide

Quick Answer

A 5E error indicates your defrost sensor has failed or has a broken wire connection. In most service calls, I find that replacing the defrost thermistor behind the back panel fixes the issue permanently. You can try a hard reset by unplugging the fridge for ten minutes, but the code usually returns if the sensor is physically damaged.

Here's what happens when you ignore a 5E code. The fridge stops running defrost cycles, ice packs the evaporator coils solid, and eventually your fresh food section starts warming up even though the freezer feels fine. I showed up to a call last month where the homeowner had been ignoring it for two weeks and there was a literal block of ice behind that back panel. The thermistor is only $15-25, so don't let this turn into a $300 repair.

SamsungRefrigeratorSeverity: moderateDifficulty: intermediate92% DIY Success
Time to Fix
30–60 min
Difficulty
intermediate
Parts Cost
$10 – $95
Tools Needed
Phillips #2 screwdriver, Multimeter with ohms and continuity settings

What Does the 5E Code Mean?

OK so the good news is this is usually a $20 fix. Samsung's defrost thermistor is a pretty common failure on their French Door and side-by-side models, especially units in the 4-7 year range. The sensor sits right on the evaporator coils and it takes a beating from freeze-thaw cycles every single day. I've replaced probably a dozen of these in the last few months alone. Cheap part, and if you're comfortable pulling a back panel, you can knock this out in under an hour.

Most Likely Causes

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

Defective defrost thermistor80%
Wiring harness issues15%
Main control board failure5%

Symptoms You May Notice

  • 5E or 5R flashing on the display, sometimes with repeated beeping that won't stop until you want to throw the thing out the window.
  • There's a solid sheet of ice covering the back wall of the freezer, or frost is packed so tight around the fan blades they can barely spin.
  • Fresh food section is warmer than it should be even though the freezer still feels cold at first.
  • The evaporator fan is grinding or ticking because the blades are hitting a chunk of ice that's built up where it shouldn't be.
  • Food at the back of the fridge is freezing solid while stuff near the front is too warm.

Can you reset a Samsung refrigerator to clear the 5E code?

After the repair, press and hold Power Freeze and Power Cool at the same time for 8-10 seconds until the display flashes and resets. If your model has a different layout, try holding Energy Saver and Lighting together. Wait about 30 seconds and make sure the display comes back clean. If 5E returns within a few hours, the sensor circuit is still reading a fault and the reset won't stick.

Tools Required for Diagnosis

Phillips #2 screwdriverMultimeter with ohms and continuity settingsPlastic putty knife or trim removal toolHandheld steamer or hair dryerWork gloves (the evaporator fins will cut you)Needle-nose pliers

Diagnostic Checklist

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

ComponentComponent Under Test
Expected Range4500–6000 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
Defrost Thermistor · $10–$25
Evaporator Fan Motor · $45–$95

Frequently Asked Questions

Is the 5E code the same as 5R on a Samsung fridge?
Yeah, they're the same thing. The way seven-segment LED displays work, the letter E can look a lot like a lowercase R depending on which segments light up. So whether your Samsung says 5E or 5R, you're dealing with the exact same defrost sensor circuit fault. Don't let that confuse you when you're searching for parts.
Can I still use my refrigerator while it shows the 5E code?
Technically yes, but you're on borrowed time. Without working defrost cycles, ice starts packing the evaporator coils tighter and tighter. Usually within 24-48 hours you'll notice your fresh food section getting warmer even though the freezer still seems cold. Keep running it past that and you risk losing food, plus the ice buildup can eventually strain the fan motor to the point of killing it too. Don't wait on this one.
How do I clear the 5E error code after fixing the sensor?
On most Samsung models, hold Power Freeze and Power Cool at the same time for about 8-10 seconds until the display flashes and resets. If your model has a different layout, try Energy Saver and Lighting together. And here's the thing, if the code comes back within a few hours of resetting, the sensor circuit is still reading wrong and the reset isn't fixing anything permanently. That means something's still broken.
Why did my defrost sensor fail in the first place?
Moisture is almost always the culprit. The seal around the thermistor housing degrades over time, and once condensation gets inside the sensor body the resistance goes completely haywire. The board can't get a consistent reading so it throws the fault code. It's kind of a design limitation on these Samsung units honestly. The sensors aren't super well-sealed from the factory and they sit in the worst possible environment, right next to coils that freeze and thaw every few hours.
How much does it cost to fix a 5E error code on a Samsung refrigerator?
The thermistor itself usually runs $15-30 online. If you're doing it yourself, that's basically your whole cost plus about an hour of your time. If you call a tech, expect $150-250 total depending on your area. The main control board is the expensive scenario, usually $200-400 for the part alone, but that's pretty rare for a straightforward 5E code. Nine times out of ten it really is just the sensor, so start there before you panic about the board.

Models Known to Experience 5E Errors

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

RF28HMEDBSR, RF23J9011SR, RF22KREDBSR, RF28HFEDTSR, RF28K9580SR, RF4289HARS, RF28K9380SR, RS25J500DSR

MS

Written by

Mike Sullivan

Lead Appliance Repair Technician · 20 years experience

Last verified for technical accuracy on March 17, 2026