Shower Diverter Valve Not Working: A Guide

A shower diverter is a crucial component that allows you to switch the flow of water between your tub faucet and shower head. When it malfunctions, it can disrupt your bathing experience and lead to frustration. Understanding the reasons behind a malfunctioning diverter is essential before attempting any repairs or purchasing a repair kit. Reasons for failure can range from mineral build up due to hard water, to improper installation and more. Read through our guide below to determine why your diverter valve is not working, and what may be causing the issue.

A shower diverter is a small yet vital component of your shower system, designed to regulate the flow of water between your bathtub faucet handle and the shower head. It plays a crucial role in ensuring a seamless transition from bathing to showering, providing convenience and functionality in daily routines. Typically installed within the plumbing infrastructure, the diverter permits users to easily switch from one water source to another, allowing for an efficient use of water based on personal preference or needs. Essentially it splits the water from the tub spout to the shower head. Despite its diminutive size, it serves a significant purpose by enhancing user experience and optimizing the overall bathing process.

There are several reasons why your shower diverter valve may have stopped working. The regular flow of water between the tub spout and shower head can be hindered due to factors such as mineral build up, old age, and corrosion. While the type of shower diverter may create an issue, and common types may have different issues, these three below are typically the main culprits.

Even the highest quality shower diverter handles are not immune to the passage of time and the wear and tear that comes with regular use. While they are designed to provide seamless transitions between bath and shower settings, factors such as general deterioration can compromise their functionality. When you notice that your shower diverter is no longer operating smoothly or has completely failed, it’s essential to assess whether a repair can restore its performance or if it has reached the end of its lifespan. In many cases, worn-out components may lead to leaks or improper water flow, indicating that more than just minor adjustments are needed.

Living in an area with hard water can lead to various plumbing challenges, particularly with fixtures such as tub faucets and showers. One of the most common issues associated with hard water is mineral buildup, which occurs when dissolved minerals—primarily calcium and magnesium—precipitate out of the water and accumulate on surfaces over time. This accumulation can significantly affect the functionality of shower diverters, resulting in them becoming clogged or malfunctioning. When this happens, users may find that their diverter fails to redirect water flow between the tub faucet and shower head effectively, disrupting their bathing experience.

Corrosion is a common issue that can arise with broken shower diverter valves, often resulting from prolonged exposure to water and the metallic components’ susceptibility to rust. This decay process not only compromises the functionality of the diverter but may also lead to unsightly stains and weakened structural integrity. Attempting to repair a rusted or corroded shower diverter valve can be frustrating, as surface-level fixes often provide only temporary relief. When corrosion takes hold, it can manifest in deteriorating parts that easily break or become stuck, rendering your shower’s operation unreliable and inconvenient.

Fixing a shower diverter can often restore both hot and cold water flow and efficiency, saving you from costly repairs or the inconvenience of an ineffective system. The first step is to soak the spout in white vinegar, which helps dissolve any mineral buildup that may hinder its performance. Before starting this process, ensure to cover your drain to prevent any small parts from falling in during disassembly. After letting the spout soak for a while, you can proceed to remove it carefully. It’s usually secured with screws or simply unscrews by hand, depending on the model. Once freed from its position, you’ll be able to access and examine the diverter mechanism located inside.

From there you will want to take the following steps:

Overall, if you are experiencing a broken diverter valve you should contact a professional plumber. Depending on the different types of diverters, water damage, and other common issues, you may need more care than others. Whether it is a replacement diverter valve that you need, other plumbing components, and more, Same Day Plumbing, Heating, and Cooling is here to help! Our certified experts are always around and ready to help with any problems that you may have!