Dealing With Shower Diverter Malfunctions [Solved]

If you have a shower-tub combination in your bathroom, the diverter valve is a handy mechanism that allows you to divert the water back and forth between the showerhead and the tub. While typically it is easy to use, the diverter valve may malfunction while in operation and show different issues like:

• Diverter valve stuck in one position
• The valve won’t stay on
• Water leakage from the valve 
• Or, no water from the diverter valve 

Whether you’re a novice or an experienced individual in plumbing work, dealing with shower diverter malfunctions is not something to take lightly. The troubleshooting process often involves cleaning the clogged valve, tightening the loosened component or replacing the whole valve itself. 

However, from my long year of hands-on experience, here I am with you till the end, bringing an effective shower diverter troubleshooting guide, highlighting all the easiest processes to deal with the issues. So let’s dive right in.

What Is A Shower Diverter? How Does It Work?

A shower diverter is a mechanism, used in a shower system that is designed to to control the water flow from your bathtub faucet to your shower head and back. In general, it has a knob or handle, attached to the tub’s faucet that you pull or twist to divert the water between two plumbing fixtures. 

Most of the shower diverters are designed to control hot and cold water supply using an extra knob located between the hot and cold knobs of the shower faucet.

However, the function of a shower diverter valve is quite simple. It has a gate which it uses to control the water in various fixtures. 

When the gate is on, water flows directly through the tub, allowing you to take a bath. But when you want to take a shower, you just lift the knob to close the diverter valve. This blocks the water flow to the tub faucet and redirects it upwards towards the showerhead.

Dealing With Shower Diverter Malfunctions [Easy Solutions]

Here is the comprehensive list of the shower diverter common problems, the corresponding reasons, and the straightforward methods to troubleshoot the issue:

1. Shower Diverter Valve Stuck

While pulling up or down the shower diverter on the tub spout, several times I encounter that the diverter fails or is stuck at one position. 

In general, I face the issue when debris, accumulation of mineral deposits, or corrosion build up in the bathtub spout like in the picture below: 

When corrosion occurs in the shower diverter, especially if it is made of metal, it hinders the smooth operation of the system. This is especially common in areas with high levels of calcium or magnesium in the water supply.

Don’t worry! Though you are not a keen DIYer like me, several methods you can employ at home to fix the issue before calling in the costly professional.

How To Fix A Stuck Shower Diverter?

Follow the proven tricks that I always apply to free up the diverter:

#Lubricate

First up, turn off the water supply to your shower. Now dry the water inside or on top of the spout.

Take a penetrating oil like WD-40 and spray it directly on the shower diverter knob. Also, spray inside by inserting the stray of the oil inside the tub spout

Wait for about 15 to 30 minutes and then try to pull and push the diverter up or down and it should be free up!!

#Soak In Vinegar

In case you suspect calcium deposits in faucets, try to dissolve it using white distilled vinegar. Just fill a bag with white vinegar and secure it to the spout using a rubber band. 

After a few hours remove it and then attempt to next try to pull the diverter. Hope you are successful this time! 

2. Shower Diverter Won’t Stay Up/On

Are you struggling with your shower diverter that is failing to maintain the selected position to direct water to the showerhead? Don’t worry, you’re not alone here!

In general, a shower diverter that drops down on its own when the water flow stops is not necessarily broken. This is a common occurrence, especially for push-button diverters. 

The reason for this is that the water pressure is what keeps the diverter in place. Once the water pressure drops, the diverter can easily move back to its default position. For instance, push the diverter down manually to see if it stays in place. If it does, then all right!

But if it continues to drop down, it could be due to a worn-out O-ring or washer or high mineral buildup inside. 

Also, if the diverter is not installed correctly, especially the handle that isn’t securely engaged with the diverter mechanism, the diverter won’t stay in the desired position. 

Sometimes, the cracked or corroded diverter is the culprit itself.

How To Fix:

Though I’ve rarely experienced such a sticky shower diverter, I found the below tricks quite effective whenever I encountered such a hiccup. You can also go like me:

• Before attempting this repair, make sure the water supply line to your shower is turned off.  
• Disassemble the diverter from the connection and clean it thoroughly if required. 
• If you suspect mineral buildup, soak the diverter valve in the vinegar solution. 
• Then inspect the valve inside for any broken or loosened O-rings and washers. If they are cracked, brittle, or misshapen, replace them with new ones.
• In case you find the diverter valve itself with any cracks, corrosion, or damage, consider replacing it with a new one. But, make sure the valve is properly aligned and seated in the shower fixture.

3. Shower Diverter Is Leaking

Imagine such an unexpected issue in your bathroom, each time you are using your shower, you observe water dripping from the bathtub faucet even when the shower is on. 

Being puzzled and concerned, you decide to investigate and upon closer inspection, you find the water leakage is mainly coming from the shower diverter.

From my hands-on experience using shower diverter, I identify the below possibilities for the leaking diverter:

• Worn-out seals and washer in the tub spout
• Faulty installation
• Loose diverter knob 
• Or accumulated debris or mineral deposits in the spout that is restricting its proper closure.

How To Fix:

Follow the below troubleshooting method to fix the leaky shower diverter:

First, turn off the water supply. Then remove the tub spout by turning it counterclockwise until it comes off.

Now remove the diverter knob and inspect any damaged or loosened seals or washers in the tub spout inside. If you notice any signs of wear or damage to the O-rings or washers, replace them immediately. 

If possible, apply a small amount of silicone lubricant on the sealing surface which would help to reduce the leakage in the future. 

Also, check for accumulated debris or minerals in the spout. Clean it thoroughly. Ensure all the components are free of debris.

Then, reassemble all parts, making sure all connections are water-tight and secured.

4. Shower Diverter No Water

No water coming out from the shower or bathtub spout is another common issue that users mostly face relating to diverter valve issues. 

If there is no water flow from the diverter valve, the best chances are your home’s main shut-off valve is not turned on.

As the diverter valve is responsible for directing the flow of water either to the showerhead or to the tub faucet, you won’t expect any water from the shower when the valve is in a neutral or closed position.

This could also be caused by accumulated debris in the valve blocking its movement, a faulty internal mechanism, or to worn-out inner rubber stopper.

How To Fix:

Don’t worry, it is super easy and won’t take a long time to fix the issue. Just go through with me as follows:

First off check and ensure that your home’s main shut-off valve is open. Now pull out the diverter and inspect the white plastic piece at the bottom named gate and a metal plate with it for any sign of damage. If required you will need to replace the damaged parts.  

Also, examine the seal or washer inside the gate and replace it if you don’t find it in good shape. For your convenience, you can purchase a diverter or tub spout repair kit, which has all the necessary parts in one package.

5. Shower Diverter Pin Came Out

If your shower diverter suddenly comes out, it is obvious your diverter gets damaged or loose. 

If that is not the case, another big possibility is the diverter is faulty. It could be a broken diverter gate or a diverter stem. At times, a minor blockage in the valve stem makes it difficult to turn between the showerhead and your bathtub faucet. 

How To Fix:

First off, inspect the diverter pin for any dirt, mineral deposits, or other obstructions that are preventing it from staying in place. If so, clean the diverter area. then insert the stem through the hole from the outside. 

Then take the diverter gate and align it inside the spout. Now gently push the gate inside using your thumbs and press the stem from the upper side at the same time. 

If the pin still doesn’t stay in place, you can try wrapping some plumber’s tape around it before reinserting it. This will create a tighter fit.

But if your shower diverter keeps popping out, you may need to replace the faulty pin or tub spout. 

Other Issues Associated With Malfunctioning Shower Diverter

Let’s have a short glimpse at other major issues with your shower system that are highly associated with a malfunctioning shower diverter: 

6. Low Shower Water Pressure

If there is no water pressure from the showerhead, the major sign is that your shower diverter may be damaged. This can occur due to wear and tear on the valve, mineral buildup, or damage to its components.

But that’s not the only factor to blame for low water pressure in your shower head. 

Other major reasons include:

• Low water pressure from the main shut-off valve
• Clogged aerators 
• Corroded or leaky plumbing pipe
• Having flow restriction in the shower head
• Incorrect adjustment of the water pressure regulator and so on. 

7. Shower Water Temperature Fluctuations

A malfunctioning diverter can also cause sudden temperature changes during your shower. This could be occurring due to worn-out rubber O-rings and washers that seal the diverter valve.

Also, a damaged diverter may not fully close off the flow to the tub faucet when the shower is on. It causes a reduced water pressure and flow to the showerhead, leading to a balance between hot and cold water.

Whatever the fact is, it is crucial to address the malfunctioning diverter in this instance for both comfort and safety.

8. Rusty Water In The Tub

Though a shower diverter seems to be a simple device used to regulate the water flow between the shower and bathtub, it equips several metal components inside for its operation. 

When these metal parts meet with water for a long time, it is obvious they start to rust. And corrosion begins to oxidize and flake off, you will find rusty or discolored water coming out of that tub spout.

9. Water Constantly Dripping From Shower Head

A damaged shower diverter is one of the big culprits to blame when you find water coming out of both your tub faucet and showerhead after activating the diverter. 

It mostly occurs when the diverter is worn out or clogged by sediments. 

If that is so, the diverter valves fail to close properly, allowing water to continue to flow out of the tub faucet. Also, improper installation of the diverter valve won’t create a tight seal, and water will leak. 

Can a Shower Diverter Be Repaired?

Yes, definitely! When you are certain about the actual reason leading to the diverter malfunction, you can easily repair it by yourself. For instance, a shower diverter repair kit would be the best handy for you. Here, you will get all the necessary elements for repair or replacement. 

Here the thing also needs to be mentioned that a shower diverter can often be repaired depending on the extent of the damage. For example, in the case of a loose or wobbly diverter, you can easily fix it by replacing the gasket or o-ring. Fix the stuck diverter by simply cleaning and lubricating it. 

If the diverter arm is broken, find replacement diverter arms at hardware stores and replace them. But if you are not comfortable repairing a shower diverter yourself, it’s better to call a plumber to diagnose the issue.

How To Deal With A Malfunctioning Shower Diverter?

When your shower diverter not working or diverting properly, here are a few methods you can apply to deal with this issue: 

i). Make Preparation

As for the first step, you should always turn off the water supply to your bathroom fixtures. Before heading to the diverter valve, another crucial step is to seal the drain with an old towel, duct tape, or anything like that. 

This is because the small screws and other miniature parts may fall down the drain while working on the diverter.

ii). Clean The Clogs

Now at this step, disconnect the diverter knob and faceplate which are held in place by screws. Inspect the diverter valve for any debris and mineral buildup. 

Use a toothbrush or a small wire brush to remove any debris accumulated around the diverter. Now Rinse the diverter with water and remove the loose particles.

In case you find the valve is clogged with hard mineral buildup, consider cleaning it with a white vinegar solution. 

iii). Tighten The Loose Connection

After cleaning, examine the diverter valve for any loose connections. The best possibility is the rubber gasket, plastic gate, or metal parts are loosened from the connection. If so, secure all the components of the valve back in place.

iv). Replace The Broken Washer Or Seals 

Over time, the seals and washer of the diverter valve may wear out, affecting the overall performance of the valve. Even it is the obvious reason if you identified a leakage issue. 

Anyway, if you notice cracked or broken seals and washers, you’ll have to replace them. 

v). Consider Replacing The Faulty Diverter Valve 

In worst cases, the defective diverter valve is the culprit itself. Either it is damaged or entirely broken at all. In this case, you will need to replace the faulty valve with a new one. 

Read on till the end to learn the effective replacement procedures for the shower valve. 

How To Replace A Shower Diverter? [Step-by-step Guide]

Once you’ve determined that your shower diverter is broken, don’t delay replacing it. Don’t worry it is easier to replace the shower diverter on your own, just follow the step-by-step instructions below to complete the replacement tasks like a pro!

Step #1: Turn Off The Water And Protect The Drain

Before doing anything, locate the shut-off valves for the hot and cold water supply to the shower and turn it off. Also, turn on the faucets in the shower and drain any remaining water from the pipes.

Now use an old towel or duct tape to seal off the drain to catch any small screws or other important parts that might fall down the drain.

Step #2: Remove The Faceplate

Use a Phillips screwdriver to remove the screws that secure the faceplate of the diverter valve. When done, carefully pry the faceplate off the wall.

Step #3: Disconnect The Tub Spout

After removing the faceplate, you will need to disconnect the tub spout connected to the diverter valve. Try to remove the tub spout by turning it counterclockwise until it comes off.

If required, you can use an adjustable wrench in this instance.

Step #4: Remove The Diverter Valve

Now at this stage, you will need to remove the diverter valve from the connection. Use a flathead screwdriver and remove the set screw holding the diverter valve in place. Then carefully pull the whole thing out.

In case the diverter valve is recessed behind the wall, use a socket wrench or shower faucet wrench to hold and loosen the nut. Once the nut is loose, you should be able to remove the diverter valve from the wall opening.

Step #5: Install The New Diverter Valve

Now take the correct replacement part from the diverter valve you have just removed. Keep note that not all shower valves are made the same. Thus it is crucial to know the right size and material for your system.

However, insert and press the new diverter valve back to its place, making sure it is properly aligned and secured in place.

Step #6: Secure The Diverter Valve

Use a flathead screwdriver and secure the set screw of the diverter valve in place. But Make sure not to overtighten anything.

Step #7: Reconnect the Tub Spout and Faceplate

Now reconnect the tub spout and place the faceplate over the diverter valve and secure it with the screws.

Step #8: Restore The Water Supply And Test The New Valve

Turn on the water shut-off valve to your bathroom fixture. Run the shower and rest the valve by switching it between the showerhead and tub spout.

[You should replace the broken or faulty shower diverter valve promptly. It is crucial because a faulty diverter valve may cause water waste from your shower. That will increase the water bill and other potential damage into the surrounding walls and fixtures]  

How Long Does A Shower Diverter Valve Last?

You can expect to use the shower diverter for a long time if it is properly installed and well-maintained. Even if you have hard water with high mineral content, your shower diverter system will work well at least for four or five years.

Beyond that, several factors would affect the overall lifespan of a shower diverter. Like the type of valve you are using, the frequency of use, and the quality of the installation. For example, if you are using T-diverters, it will prove more durable followed by pull-up diverters and slide-turn diverters.

How Much Does It Cost To Replace A Shower Diverter?

You can expect to pay between $225 to $575 for shower diverter valve replacement, including the material and labor cost. Typically, the cost of a replacement shower diverter valve parts falls between $20 and $200 on average. 

When you are ahead for the replacement or repair of any of the plumbing fixtures of your house, several factors contribute to the overall cost. That includes the types of shower diverter you will install, the extent of the replacement work, and labor charge per hour in your area. 

For instance, diverter valves are cost-friendly no matter what type of valve you are using. Plus, if you are hiring a professional, you can expect $90 to $400, excluding the material. 

Preventive Maintenance Tips To Keep Shower Diverter In Top Condition

To ensure the proper operation of your bathroom shower diverter and prevent further issues, here are some pro tips you can apply in this instance:

• As already mentioned, over time, the diverter becomes clogged with mineral deposits or debris, affecting its operation. Thus clean the diverter valve periodically by soaking it in vinegar for a few hours to remove any build-up.
• Keep an eye out for any signs of leaks around the diverter area. If you notice dripping water, repair the leaks immediately to prevent further damage.
• Periodically, inspect the diverter for any loose connection, especially the handle or diverter knob. Tighten any loose components to ensure a secure fit.
• Regularly test the diverter by switching between the tub faucet and showerhead. Ensure that it moves smoothly. In case you find the valve is stuck, apply a silicone-based lubricant to moving parts of the diverter such as the handle and internal components. This helps maintain smooth operation and prevents stiffness.
• Besides, avoid applying excessive force when turning the diverter as this can lead to premature wear and damage. 
• Examine the water pressure running to your home plumbing system and try to maintain a balanced pressure. Fluctuations in water pressure affect the performance of the diverter. 
• If you are living in a hard water area, consider installing a water softener to prevent mineral deposits from building up in the diverter and other plumbing fixtures.

FAQs:

In Closing!

I hope this post helps you understand the most common issue associated with the shower diverter valve of your bathroom fixtures. After thoroughly reading, I bet dealing with shower diverter malfunctions is just a time fact for you, isn’t it?

But the thing is, troubleshooting the appearing issue is not enough to ensure a stress-free and efficient bathroom experience for you. For instance, you’ll need to fully concentrate on the proper maintenance of this shower system. 

This will not only overcome common diverter valve challenges but also help you prevent water damage and costly repair.

Well, that’s all from us here for you! You may also be interested in reading about Kohler’s push button stuck.