Samsung Freezer 25E Error: Defrost heater failure
If your Samsung appliance is showing this error, you’re dealing with a samsung freezer 25e error. Here’s everything you need to know about diagnosing and fixing this issue. Samsung 25e error code — here is what you need to know. What Does Error Code 25E Mean on a Samsung Freezer? Error code 25E on Samsung […]
No
DIY Fixable
From $180
Typical Repair Cost
60-120 min
Pro Repair Time
Quick Assessment
Answer to continue safely
Is it safe to keep using?
Maybe.
Can I reset the code?
Yes.
When to stop immediately?
Stop if you notice: Frost is thick enough to touch the evaporator fan blades, causing grinding noises, Freezer interior temperature exceeds 10 F (-12 C) despite the compressor running.
Symptoms You May Notice
Rapid frost buildup on evaporator coils
Heavy frost accumulates on the rear interior panel within days because the defrost heater never activates to melt it.
25E error code on display panel
The control panel displays 25E, indicating the defrost heater circuit failed its last activation test.
Freezer temperature slowly rises over days
As frost insulates the evaporator coils and blocks airflow, the freezer gradually loses its ability to maintain target temperature.
Fan produces louder or strained noise
The evaporator fan may contact accumulated ice or strain against restricted airflow, producing grinding or whining sounds.
Possible Causes
Burned-out defrost heater element
The glass-tube or calrod heating element develops an internal break in its resistive wire, creating an open circuit that prevents any heat generation during defrost cycles.
Requires ProfessionalFailed defrost bi-metal thermostat
The bi-metal safety thermostat that allows power to the heater only below a certain temperature can fail in the open position, permanently blocking current to a perfectly functional heater.
Requires ProfessionalControl board relay failure
The relay on the main PCB that switches AC power to the defrost heater can burn out, preventing voltage from reaching the heater circuit even though the timer commands defrost.
Requires ProfessionalSafe Checks You Can Do
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1
Manual defrost and observe
Unplug the freezer for 24 hours with the door open. After restarting, check behind the rear interior panel every 24 hours for frost. If heavy frost returns within 48 hours, the heater is confirmed failed.
Take a photo of the evaporator area right after the manual defrost so you have a clean baseline to compare against.
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2
Listen for defrost cycle sounds
A working defrost cycle produces a faint clicking sound (relay engaging) followed by gentle dripping as frost melts. Listen near the freezer at 8-12 hour intervals after a restart.
Samsung freezers typically defrost every 8 hours of compressor run time — set a reminder to listen.
When to Call a Professional
Contact a qualified technician if:
- The defrost heater shows no continuity when tested with a multimeter
- Heavy, uneven frost on the evaporator coils returns within 48 hours of a manual defrost
- The bi-metal thermostat does not close at room temperature (should be closed below 40 F)
Need Professional Help?
Find qualified technicians in your area for proper diagnostics and repair.
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