How to Replace a Shower Diverter Push Button: Easy DIY Guide

Updated at: 15/03/2025

Is your shower diverter push button stuck, broken, or simply looking worn out? A malfunctioning diverter can turn a relaxing shower into a frustrating experience, leaving you struggling to switch between shower head and tub spout. Fortunately, replacing a shower diverter push button is a relatively straightforward DIY project that can save you the expense of a plumber. Many homeowners are surprised to discover just how easy it is to tackle this common bathroom repair. This simple fix often only requires basic tools and a little patience.

This guide will walk you through each step of the process, from identifying your diverter type to reinstalling the new button. Forget expensive service calls and get ready to enjoy a fully functional shower again; let's dive into the step-by-step instructions for replacing your shower diverter push button.

Preparation and Safety Guidelines

Tools Needed
  • Flathead screwdriver
  • Phillips head screwdriver
  • Socket wrench or pliers
Safety Guidelines
  • Always turn off the water supply to the shower before starting any work. This prevents flooding and potential injury.
  • Use caution when handling the old diverter; some parts may be brittle or sharp. Wear safety glasses to protect your eyes.
  • If you are unsure about any step of the process, consult a qualified plumber. Improper installation can lead to leaks or damage.

Step-by-Step Instructions

  1. Prepare for Replacement

    • Shut off the water supply.
    • Verify you have the correct diverter replacement.
    Verify you have the correct diverter replacement.Verify you have the correct diverter replacement.
    Prepare for Replacement

  2. Remove the Old Diverter

    • Remove the hot/cold indicator cap using fingernails or a flathead screwdriver.
    • Remove the screw securing the knob (Phillips or flathead, depending on your model).
    • Pull off the knob.
    • Remove the screws holding the cover plate in place.
    Remove the screws holding the cover plate in place.Remove the screws holding the cover plate in place.Remove the screws holding the cover plate in place.Remove the screws holding the cover plate in place.Remove the screws holding the cover plate in place.
    Remove the Old Diverter
    • Remove the cover plate.
    • Remove the foam gasket or ring around the diverter.
    • Unscrew the old diverter using a socket wrench or pliers.
    Unscrew the old diverter using a socket wrench or pliers.Unscrew the old diverter using a socket wrench or pliers.
    Remove the Old Diverter

  3. Install the New Diverter

    • Push in the button of the new diverter and thread it into place, ensuring it lays flat.
    • Tighten the new diverter until you feel resistance, but avoid over-tightening.
    Tighten the new diverter until you feel resistance, but avoid over-tightening.Tighten the new diverter until you feel resistance, but avoid over-tightening.Tighten the new diverter until you feel resistance, but avoid over-tightening.Tighten the new diverter until you feel resistance, but avoid over-tightening.
    Install the New Diverter

  4. Reassemble

    • Replace the cover plate and screws.
    • Replace the knob and screw.
    • Replace the cap on the knob, ensuring it's oriented correctly.
    Replace the cap on the knob, ensuring it's oriented correctly.Replace the cap on the knob, ensuring it's oriented correctly.Replace the cap on the knob, ensuring it's oriented correctly.Replace the cap on the knob, ensuring it's oriented correctly.
    Reassemble

  5. Test and Finalize

    • Turn the water supply back on and test the diverter.
    Turn the water supply back on and test the diverter.
    Test and Finalize

Read more: Fixing a Leaky Toilet Tank: A Step-by-Step Guide

Tips

  • Always remember lefty loosey, righty tighty when working with screws.
  • Don't overtighten the diverter; this could damage the threads.
  • If unsure about the correct orientation of the cap, test with the water on to verify hot and cold sides.

Common Mistakes to Avoid

1. Forcing the Button

Reason: Applying excessive force when the button is stuck can damage the internal mechanism or break the button itself.
Solution: Try lubricating the mechanism with silicone spray before attempting to remove the button.

2. Improper Cartridge Removal/Installation

Reason: Forcing or mishandling the cartridge can lead to scratching or damage, resulting in leaks or malfunction.
Solution: Use the appropriate tool and carefully follow the manufacturer's instructions for cartridge removal and reinstallation.

FAQs

What tools do I need to replace my shower diverter push button?
Typically, you'll only need a screwdriver (likely Phillips head), possibly pliers (depending on the diverter type), and a replacement push button. Always check your specific diverter's instructions for any additional tools.
How do I know what type of diverter I have?
Examine your diverter valve closely. Some are easily accessible behind a decorative plate, while others might require removing the shower trim. Take photos to help with reassembly. If you're unsure, look up your shower model online to find a diagram or replacement parts.
My new push button doesn't seem to be working. What should I do?
Double-check that the button is properly seated and aligned with the valve. Ensure that you haven't accidentally damaged any internal components during the process. If the problem persists, it may indicate a more serious issue with the diverter valve itself, requiring professional help.