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Refrigerator interior light stays on continuously even after the door is fully closed, causing heat build-up and elevated energy consumption.
Refrigerator continuously beeps or displays a door-open warning even when all doors are completely closed and properly sealed.
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 compartment runs above set temperature because a stuck-on interior light generates excess heat inside the refrigerator cavity.
💡 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
We typically respond within 1 business day. Include your appliance model number for the fastest answer.
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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