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Washer or dryer fails to begin a cycle because the broken or missing knob cannot actuate the underlying selector switch.
Physical damage to the knob body — cracks, chips, or complete breakage — makes it impossible to grip or turn the control.
The retaining clip has worn out or snapped, causing the knob to detach from the shaft entirely, leaving only a bare metal stub.




💡 Pro Tip: How to Tell Your Selector Knob Needs Replacing
Your part is likely the culprit if you notice any of the following:
⚠️ Knob spins freely without engaging the selector shaft or changing any settings
⚠️ Washer or dryer will not start — turning the knob produces no response
⚠️ Visible cracks, chips, or breaks in the plastic knob body making it hard to grip
⚠️ Knob pulls completely off the shaft or feels loose and wobbles during use
🔍 Quick test: With the appliance unplugged, try turning the bare metal shaft with needle-nose pliers. If the machine responds normally, only the knob/clip assembly needs replacement — not the underlying switch.
📦 What's in the Box
✅ 1× WH1X2721 Selector Knob with Integrated Retaining Clip (White, 1-3/4" diameter, D-bore, red indicator line)
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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