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The cycle timer does not progress through drying stages because the knob can no longer grip or turn the D-shaped shaft properly.
Broken or detached knob prevents proper cycle selection, making it impossible to engage the start function.
Worn interior bore causes the knob to rotate without transmitting torque to the timer shaft, losing all cycle control.
Physical damage — cracking, chipping, or complete detachment — makes it impossible to select drying time, temperature, or cycle mode.
💡 Pro Tip: How to Tell If Your Control Knob Needs Replacing
Your part is likely the culprit if you notice any of the following:
⚠️ Knob spins freely without engaging the timer or cycle selector
⚠️ Knob is cracked, chipped, or has broken off from the shaft
⚠️ Timer does not advance when you turn the knob
⚠️ Dryer or washer will not start because the cycle cannot be selected
Before ordering, confirm your model number on the label inside the door or on the back panel. The WE01X20380 fits D-shaped shafts only — verify the shaft profile before installation. If the shaft itself is damaged, the timer unit (WE4M527) may also need replacement.
📦 What's in the Box
✅ 1× WE01X20380 Dryer Control Knob – Grey (approx. 2" diameter, D-shaft, includes retaining clip)
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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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