5E — / 5C — Fridge Defrost Fault
The 5E/5C code points to a defrost problem in the fridge section — the evaporator is not defrosting, so ice builds up and cooling drops.
- Keep using it?
- Limited use only
- DIY difficulty
- Moderate
- Typical cost
- $15-35
- Verified against
- samsung.com ↗
The fix
Defrost sensor / thermistor
Defrost sensor error
Diagnose first: Requires removing the rear freezer panel after fully defrosting. Sensor clips to the evaporator coil.
Find this part on Amazon →Didn't resolve it? Next suspect: Defrost heater assembly ($30-70)
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How to fix it
- Unplug and remove the fridge rear interior panel to access the evaporator.
- Test the defrost heater and sensor for continuity.
- Replace the failed component and clear the ice.
Why it happens
Typical signs: Frost buildup behind the rear panel · Fridge warming · 5E or 5C on the display
- Failed defrost heater An open defrost heater never melts the coil frost.
- Faulty defrost sensor A bad sensor prevents proper defrost timing.
Replace your water filter
A clogged or overdue water filter is a common cause of low water and ice flow on Samsung refrigerators — they are meant to be changed about every 6 months. The OEM-style filter that fits most Samsung refrigerators is the DA29-00020B ($45-55 OEM, $15-25 compatible).
- Samsung DA29-00020B refrigerator water filter OEM water filterAmazon →
Not sure which filter fits your model? See the full compatibility guide →
Related repair guides
More Samsung refrigerator codes
Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician. Verified against manufacturer documentation: samsung.com.