How to Fix a Busted Shower Knob
- 1). Remove the cap from the broken shower knob to expose the knob’s retaining screw. Pry the cap off using the side of a utility knife blade.
- 2). Turn the retaining screw counterclockwise using a Phillips-head screwdriver.
- 3). Pull the broken knob off from the shower valve shaft.
- 4). Install the new knob onto the valve shaft and tighten the retaining screw clockwise with the screwdriver.
- 5). Press the cap onto the knob.
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