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Samsung·Refrigeratormedium severity
Samsung Error Code 40E
Freezer defrost / ice fan error
Common Causes
- 1Frost buildup
- 2Defrost failure
Step-by-Step Troubleshooting
- 1
Unplug the refrigerator, open both doors, and place towels at the base to catch meltwater. Allow to defrost for 8-12 hours
- 2
After defrosting, remove the freezer rear panel and inspect the evaporator coils. If frost has been building up repeatedly, the defrost system needs diagnosis
- 3
Test the defrost heater for continuity — it should read 20 to 40 ohms. An open reading means the heater has failed
- 4
Check the defrost thermostat (bi-metal) for continuity when cold — it should be closed (0 ohms). If open when cold, replace it
- 5
After repairs, power on and enter Samsung forced defrost mode (hold Freezer + Fridge buttons simultaneously for 8 seconds, then press Freezer button until Fd appears) to verify the defrost cycle runs
Pro Diagnostic Tip
When 40E appears alongside a completely frosted evaporator, do not just defrost and call it fixed. The root cause is almost always a failed defrost component. A manual defrost buys time but the frost will return within 2-3 weeks without part replacement.
You Might Also Notice
- •Thick ice sheet on the freezer back wall
- •Freezer fan making loud noise from ice interference
- •Both freezer and fridge sections losing cooling
- •Water leaking onto the floor from the freezer compartment
Parts, Cost & Difficulty
Repair Difficulty
Moderate — Some Experience NeededEstimated Repair Cost
$175–$350
Parts + labor. Free diagnosis with repair.
Parts That May Need Replacement
Defrost heater (Samsung DA47-00264B)Defrost thermostat/bi-metal (Samsung DA47-00243B)Defrost sensor with thermal fuse (Samsung DA47-00301R)
Do You Have the Right Tools?
Refrigerant gauges ($200+), vacuum pump ($250), leak detector ($150), and EPA-certified recovery equipment. Our technician arrives with $15K+ in professional tools — your diagnostic is free.
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What This Repair Involves
Here's what a professional technician does to resolve this issue:
Thaw frost buildup
This repair requires specialized refrigerant handling equipment, EPA certification, and precise temperature diagnostics. Most homeowners find it safer and more cost-effective to have a licensed technician handle it.
Safety First — Know the Risks
Refrigerant (R-134a/R-600a) requires EPA certification to handle. Improper discharge is a federal violation and health hazard. Our techs are licensed and insured — let them handle the risk.
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Ready to Get This Fixed?
Don't let error code 40E disrupt your day. A professional diagnosis takes about 30 minutes — and it's free when you proceed with the repair.
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Frequently Asked Questions
What does Samsung error code 40E mean?
Samsung error code 40E indicates: Freezer defrost / ice fan error. This is a medium-severity issue affecting your refrigerator.
How do I fix Samsung error code 40E?
Unplug the refrigerator, open both doors, and place towels at the base to catch meltwater. Allow to defrost for 8-12 hours Then, After defrosting, remove the freezer rear panel and inspect the evaporator coils. If frost has been building up repeatedly, the defrost system needs diagnosis Then, Test the defrost heater for continuity — it should read 20 to 40 ohms. An open reading means the heater has failed There are 2 more steps — see the full troubleshooting guide above. If these steps don't resolve the error, contact a professional.
How do I know if my refrigerator has error 40E?
Besides the error code on the display, common signs include: Thick ice sheet on the freezer back wall; Freezer fan making loud noise from ice interference; Both freezer and fridge sections losing cooling. If you notice any of these symptoms, check your refrigerator's display panel for error code 40E.
How much does it cost to fix Samsung 40E?
Repair costs for Samsung 40E typically range from $175 to $350 depending on the specific cause and parts needed. EasyBear offers free diagnosis when you proceed with the repair. Call (415) 795-7300 for a same-day appointment.