Introduction
If you have a broken or loose dial, then this guide can help you replace it.
Tools
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            Remove the four 12 mm Phillips #2 screws surrounding the base then lift the bottom half of the base to expose the circuit boards inside the device. 
 
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            Use the metal spudger to cut open the rubber covering the latch where it clamps onto the copper tab. 
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            Unplug wire at heating element by first using the metal spudger to push the latch in and then pushing it out. 
 
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            Remove the two 7.5mm Phillips #2 screws from the metal frame. 
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            Remove the frame from the assembly. 
 
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            Remove the two 6mm fine thread Phillips #2 screws attaching the small computer chip to the metal frame. 
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            Flip over and remove the 7.5 mm fine thread Phillips #2 screw from the back while holding the 5mm nut on the front securely. 
 
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            Find the cable that attaches the small computer chip to the heating element connections. 
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            Use the spudger to cut open the rubber coating on the latch where it clamps onto the copper tab. 
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            Insert the metal spudger into the rectangular hole on the latch and push toward the tab (away from the wire) to unbend the tab. 
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            Push the latch off the tab with the spudger. 
 
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            Identify the two computer chips that connect the two yellow wires to the temperature controls. 
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            Remove the four 5 mm Phillips #1 screws. 
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            Remove the two computer chips from their places. 
 
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            Find the computer chip over the dial. 
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            Remove the three 6mm Phillips #2 screws. 
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            Remove the computer chip. 
 
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            Remove the two 6 mm Phillips #1 screws from the black dial base plate. 
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            6 mm Phillips #1 screws 
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            Remove the black dial base plate, metal spring, LED tube, and the actual dial. 
 
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            Remove the three 7.5 mm Phillips #2 screws from the dial collar. 
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            7.5 mm Phillips #2 screws 
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            The dial collar will then come away from the base. 
 
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To reassemble your device, follow these instructions in reverse order.