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DA3400066C Refrigerator Door Interlock Switch Compatible with Samsung, Replaces AP5306252 2705488 PS4138763 EAP4138763
  • DA3400066C Refrigerator Door Interlock Switch Compatible with Samsung, Replaces AP5306252 2705488 PS4138763 EAP4138763
  • DA3400066C Refrigerator Door Interlock Switch Compatible with Samsung, Replaces AP5306252 2705488 PS4138763 EAP4138763
  • DA3400066C Refrigerator Door Interlock Switch Compatible with Samsung, Replaces AP5306252 2705488 PS4138763 EAP4138763
  • DA3400066C Refrigerator Door Interlock Switch Compatible with Samsung, Replaces AP5306252 2705488 PS4138763 EAP4138763
  • DA3400066C Refrigerator Door Interlock Switch Compatible with Samsung, Replaces AP5306252 2705488 PS4138763 EAP4138763
  • DA3400066C Refrigerator Door Interlock Switch Compatible with Samsung, Replaces AP5306252 2705488 PS4138763 EAP4138763
  • DA3400066C Refrigerator Door Interlock Switch Compatible with Samsung, Replaces AP5306252 2705488 PS4138763 EAP4138763
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Showing 58 compatible models
Aftermarket Replacement · Factory Direct
OEM-compatible part built to original specifications. Not manufactured by or affiliated with the original equipment brand.

DA3400066C Refrigerator Door Interlock Switch Compatible with Samsung, Replaces AP5306252 2705488 PS4138763 EAP4138763

SKU: DA3400066C
OEM RetailBranded
$54.05
Via distributor
Source: AppliancePartsPros.com · Nov 2023
OEM brand & packaging
Factory direct price
1-year warranty
Our PartBest Value
$32.99
Factory direct
OEM-Compatible
Meets OEM specifications
Factory direct price
1-year warranty
Save by going factory direct
OEM-compatible · no distributor markup
$21.06
39% less than OEM retail
Order within --:-- to ship today
Repair Time10-15 Minutes
DifficultyEasy
DIY FriendlyYes
Tools Needed
Flathead ScrewdriverPhillips Head Screwdriver
Qty
Ships from China · 10–20 business days
No sales tax outside CA
or
DA3400066C Refrigerator Door Interlock Switch Compatible with Samsung, Replaces AP5306252 2705488 PS4138763 EAP4138763
$48.99 Original price was: $48.99.$32.99Current price is: $32.99.
In Stock

This Part Fixes These Problems

Interior Light Won't Turn Off

Refrigerator interior light stays on continuously even after the door is fully closed, causing heat build-up and elevated energy consumption.

Door Open Alarm Won't Stop

Refrigerator continuously beeps or displays a door-open warning even when all doors are completely closed and properly sealed.

Ice / Water Dispenser Not Working

Water or ice dispenser is unresponsive or behaves erratically because the faulty switch fails to signal that the door is closed, locking out dispenser operation.

Freezer Temperature Too Warm

Freezer compartment runs above set temperature because a stuck-on interior light generates excess heat inside the refrigerator cavity.

Repair Guides

How to Replace DA3400066C Door Interlock Switch on Samsung Refrigerator — Step-by-Step
May 28, 2026
How to Extend Your Samsung Refrigerator Door Interlock Switch Life — Maintenance Guide
May 28, 2026
Samsung Refrigerator Door Interlock Switch Parts — Models & Compatibility
May 27, 2026
OEM vs Aftermarket Samsung Refrigerator Door Interlock Switch: Real Price Difference (DA3400066C)
May 24, 2026

Product Description

Why Choose Our DA3400066C Refrigerator Door Interlock Switch?

🔧
Built to OEM SpecificationsRated 250V / 0.5A, 2-pin push-button hinge-lever design — dimensionally identical to the original Samsung DA34-00066C at 2.36" × 1.1" × 0.67". Drop-in fit, zero modifications required.
💡
Dual-Function ControlSimultaneously manages interior lighting and ice/water dispenser lockout — turns the light off when you close the door and disables the dispenser while the door is open, preventing ice spillage.
🛡️
High-Density Engineering PlasticMolded from non-conductive, heat-resistant engineering polymer with chrome-plated contacts. Tested for 10,000+ open/close cycles, resisting oxidation and thermal creep in cold, humid environments.
🔄
Wide Cross-Reference CoverageDirect replacement for OEM part numbers AP5306252, 2705488, PS4138763, EAP4138763, PD00031699, and DA3400066C. Verified against PartSelect (PS4138763) and AppliancePartsPros (AP5306252) databases.
📋
Broad Model CompatibilityFits 100+ Samsung French door, side-by-side, and 4-Door Flex refrigerators including RF263BEAESR, RF4287HARS, RF23HSESBSR, RF28HMEDBSR, RF22K9581SR, RF23J9011SR and many more. Also fits select Dacor models.
⚡
10-Minute DIY RepairNo special tools needed. Unplug fridge → remove two screws → disconnect 3 wires → plug in new switch → reinstall. Restores full light and dispenser function in under 10 minutes.

💡 Pro Tip: How to Tell If Your Door Switch Has Failed

Your part is likely the culprit if you notice any of the following:

⚠️ Interior light stays on continuously even after the door is fully closed

⚠️ Persistent "door open" alarm even when all doors are firmly shut

⚠️ Water or ice dispenser stops working or dispenses unexpectedly while door is open

⚠️ Freezer temperature runs warmer than set point — heat from a stuck-on light causes it

Quick test: Press the switch plunger by hand with the door open. If the interior light does NOT go off when pressed, the switch is faulty and needs replacement. Do not confuse this mechanical push-button switch with the magnetic reed switches at the top of French door models — those are separate components.

📦 What's in the Box

✅ 1× Refrigerator Door Interlock Switch (250V / 0.5A, 2-pin, push-button, grey) — compatible with DA34-00066C / DA3400066C

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    Disclaimer: Compatibility information, part numbers, and model fitment data on this page are sourced from manufacturer databases and third-party references. While we strive for accuracy, please verify your appliance model number before ordering. Heima is not responsible for errors or omissions in compatibility listings.

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