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When the damper is stuck in the open position, excess cold air floods the fridge compartment, freezing liquids, produce, and other perishables.
A damper stuck in the closed position blocks cold airflow from the freezer, causing the refrigerator section to warm up and fail to maintain safe storage temperatures.
A faulty damper motor that partially opens or closes erratically causes temperature swings in the fridge compartment, spoiling food faster.
The control board may trigger an H1 error when it detects the damper assembly is not responding correctly to temperature signals.
A worn or seized damper motor produces audible clicking or buzzing sounds, indicating the actuator is struggling to open or close the air door.
💡 Pro Tip: Is Your Damper Assembly Failing?
Your part is likely the culprit if you notice any of the following:
⚠️ Refrigerator section is too cold — food and liquids are freezing
⚠️ Fridge not cooling enough even though freezer is working fine
⚠️ Unusual clicking or buzzing noise from the upper back of the fridge compartment
⚠️ H1 error code displayed on the control panel
🔍 Tech Tip: Unplug the refrigerator and manually check if the damper door opens and closes freely. If it is stuck open, the fridge over-cools; stuck closed, it won't cool at all. Also inspect the damper vent area at the base for ice blockage — clear any ice plug before installing the new assembly. While you're in there, test the fridge thermistor (26.04 kΩ at 40°F) as a failed thermistor can mimic a damper fault.
📦 What's in the Box
✅ 1× Air Damper Control Assembly with integrated motor and foam seal (Part 242303001)
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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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