Samsung Refrigerator 24E Error: Defrost sensor error
If your Samsung appliance is showing this error, you’re dealing with a samsung refrigerator 24e error. Here’s everything you need to know about diagnosing and fixing this issue. Samsung 24e error code — here is what you need to know. What It Means Error code 24E on Samsung refrigerators indicates the defrost temperature sensor is […]
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: The freezer rear panel is coated in more than one inch of ice, Both compartments are above safe food storage temperatures (fridge above 40°F, freezer above 0°F).
Symptoms You May Notice
Heavy frost buildup on freezer back wall
A thick layer of ice accumulates on the rear panel or evaporator cover inside the freezer because defrost cycles are not completing properly.
Reduced cooling in both compartments
Ice on the evaporator coils blocks airflow, causing both the freezer and refrigerator sections to gradually warm up over days or weeks.
Defrost cycle running too long or not at all
Without accurate sensor data, the control board either skips defrost cycles entirely or allows the heater to run beyond normal duration.
Water pooling under produce drawers
When defrost does occur, excessive melted ice overwhelms the drain system and drips into the fresh food compartment below.
Possible Causes
Failed defrost thermistor
The sensor's internal element has degraded from repeated extreme temperature cycling during defrost, producing open-circuit or short-circuit readings.
DIY PossibleDamaged sensor wiring or connector
Ice expansion near the evaporator can pinch, cut, or corrode the thin wires running from the defrost sensor to the main control board.
Requires ProfessionalSafe Checks You Can Do
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1
Assess frost level
Open the freezer and check the rear panel for excessive frost buildup. A thin, even layer of frost is normal — thick, uneven ice buildup indicates the defrost system is not cycling correctly.
If the rear panel is covered in more than a quarter inch of ice, a manual defrost is recommended before any repair.
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2
Power cycle and monitor
Unplug the refrigerator for 5 minutes, then restore power. Monitor the freezer temperature and frost accumulation over 48 hours to determine if the defrost cycle resumes.
Mark the frost line with a piece of tape so you can track whether it grows over 48 hours.
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3
Manual defrost if needed
If frost is severe, unplug the unit for 24 hours with doors open to fully melt the ice. This will not fix the sensor but restores cooling while awaiting repair.
Place towels inside the freezer and on the floor to catch meltwater.
When to Call a Professional
Contact a qualified technician if:
- The defrost sensor resistance is open or shorted when tested with a multimeter
- Frost returns within 3-5 days after a manual defrost, confirming the defrost system is not cycling
- The defrost heater does not warm up at all during a forced defrost test cycle
Need Professional Help?
Find qualified technicians in your area for proper diagnostics and repair.
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