Changed Shower Head Lost Hot Water [Solved]

Beyond any doubt, replacing a shower head is an effective action to improve water flow and pressure during showers. While it can lead to an enhanced shower experience, it can sometimes result in unexpected consequences particularly when there is the loss of hot water from the newly installed shower head. 

The major reasons for the changed shower head lost hot water include:

• Clogs in the shower head nozzles
• Using shower head with flow restrictor
• Leakage in the shower head
• Blocked or leaky diverter valve
• Defective mixing valve 
• Use low-flow or incompatible shower heads for your bathroom fixtures.

Before considering anything else, double check you are using the right fit shower head for your shower faucet and bathroom setup. Also, check for any potential clogs or leakages in newly installed shower head parts. 

If still the problem persists, let’s delve into the major reasons why the changed showerhead is resulting in the loss of hot water. 

Possible Reasons & Solutions For Changed Shower Head Lost Hot Water [Quick Overview]

Before heading over to the details, let’s make your further reading easier through this quick table, summarizing all the reasons and solutions for this issue:

Probable Reasons	Recommended Fix
Clogged shower head	> Clean the clogs from the shower head
Leaking shower head	> Inspect the loose connection between the showerhead and the shower arm. > Tighten the loosened parts.
Using flow restrictor in shower head	> Remove the flow restrictor from shower head
Diverter valve issues	> Inspect the diverter valve for any signs of leaks and blockages. > Clean the blockages and repair the leakage. > Ensure it is adjusted correctly and moves freely.
Malfunctioning shower mixing valve	> Clean the obstruction of the valve. > Replace it if needed.
Improper installation of shower	> Using a low-flow showerhead
Using a low-flow shower head	> Consider installing a high-flow shower head.

Can A Shower Head Affect Water Temperature?

No, the showerhead doesn’t directly control the water temperature but it has a high impact on the flow rate and distribution of the water. Several more factors in the plumbing system certainly affect it like clogs or leakage in the shower head, temperature adjustments, or what type of shower head you are using,

A typical shower set or shower system is composed of several components like a mixer, a hose, and a showerhead. 

In my real-life experience, while dealing with heating issues from my shower, I had a strong suspicion that the issue was related to the mixer as it was significantly designed to control the temperature of the water. So I replaced it, but this didn’t bring any good luck to me!!

For instance, adding a shower pump was an effective solution for me that boosted water pressure and helped me to maintain a more consistent temperature. 

As mentioned above, the shower head does not directly affect the water temperature but through the water pressure rate. For example, when water comes out of the showerhead at a higher velocity due to high pressure, it increases the water temperature at the same level. 

Conversely, if the water pressure is too low, the decreased water volume also lessens the water temperature coming out of the shower head.  

Why Is There No Hot Water After Changing Shower Head [Easy Solutions]

Let’s explore the detailed troubleshooting guide, highlighting all the probable reasons for this issue with the effective solutions:

1. Clogged Shower Head

If there is no hot water running through your new shower head, the best chances are the shower head opening is clogged up, preventing the normal water flow. 

[While it’s less common in a newly installed shower head, it is possible.]

While installing the process, dust or small particles may get stuck in the shower head’s nozzles and create clogs. 

If that is so, it is obvious the clogged shower head aerators will restrict the normal hot water flow through the opening. As a solution, you’ll need to inspect the showerhead for any clogs and clean it if required.

How To Fix:

To clean the clogged shower head, here are the simple steps to follow:

Step 1: Start by turning off the water supply to your shower.

Step 2: Now take an old toothbrush or a soft brush and gently scrub the nozzles and opening of the showerhead. Also, you can use a scrubber sponge and move it back-and-forth motion. It will help to dislodge any loose debris.

Step 3: Instead of that, you can take compressed air and use it to blow air through the nozzles.  Then rinse with clean to remove the remaining loosened debris.

Step 4: After a thorough cleaning, turn on the water supply and check if you are getting hot water at your desired flow rate.  

2. Leaking Shower Head

Leakage in the showerhead or related parts is another common reason why you are not getting hot water from it. 

A leak in the shower can occur at various points. It would be in the connection between the showerhead and the shower. Also, the best possibility is the faceplate for the shower head is not secured correctly, allowing water to leak around the edges. 

Also, many showerheads have a rubber washer or O-ring that is typically located inside the showerhead where it attaches to the shower arm. In case this washer becomes loose due to mishandling the shower head while installing it, water can easily seep out from this.

Anyway, when there is a leak at any connection point of the shower head, it causes water loss and reduces water pressure, making the shower water feel cooler.

How To Fix:

First off, make sure you have turned off the water supply to your shower system. Now, take a dry paper towel or tissue and place it just underneath the showerhead. If you notice the water is dripping from the showerhead and it becomes wet, be sure there is a leakage in your showerhead.

Visually inspect the showerhead for any signs of cracks and damage [Though it is new it can be possible.] 

For better visualization, gently unscrew the shower head from the shower arm. Check the connection between the showerhead and the shower arm for leaks. 

For instance, you may get a rubber washer or O-ring that becomes loosened or displaced. Secure it back in place or in most cases, you will need to replace it with the new one.

When done, reattach the showerhead to the shower arm. Make sure it is tightened securely. Use a wrench or pliers if necessary, but be careful not to overtighten it as this can damage the connection. 

Last, but not least, ensure a watertight seal of the shower head faceplate with the connection.

3. You Have A Showerhead With Flow Restrictors

Many shower heads equip a flow restrictor that is designed to limit the flow of water. While they are primarily used to conserve water, they reduce the flow of both hot and cold water. 

Now in case you are not getting hot water from your newly installed showerhead, the chances are it has a flow restrictor that is slowing down the delivery of hot water to the showerhead.

How To Fix:

In general, the flow restrictors in the shower heads are removable. Either you can adjust it or remove it to increase the flow rate of hot water.

In order to remove it, first take out the rubber washer, and then you will find a piece of plastic with hole or holes. Now take a tweezer or pilers and gently take it out. 

When done, put the rubber washer back in place and hopefully you will notice a decent improvement in your hot water flow from the shower.

4. Diverter Valve Issues

The diverter valve is a very common device in a shower-tub combination that allows you to direct the water between the tub faucet and the showerhead. When the diverter valve is open, water starts flowing through the faucet and into the tub.

While taking a shower, users just lift the knob and close the diverter valve. This creates a force and allows water to come out of the showerhead.

Anyway, if the diverter valve is not functioning correctly, it directs more water to the shower head and less to the tub spout. This causes insufficient hot water to run through the showerhead. 

Either the diverter valve becomes blocked or obstructed with debris, or mineral deposits or is not installed correctly. If the diverter valve is not set up to the right portion of hot water to the showerhead, it results in the showerhead receiving insufficient hot water.

How To Fix:

Here we have a few solutions and tricks that you may apply to fix the malfunctioning diverter valve:

Phase 1: Clean The Diverter Valve

As for the first step, inspect the diverter valve for any obstructions. The best possibility is it is clogged with sediment deposits especially if you have water with higher mineral content. 

Anyway, to clean the diverter valve, use a soft brush or an old toothbrush and gently scrub the valve components. After cleaning, flush the diverter valve with clean water to remove the remaining debris.

Phase 2: Check For Leaks 

In the next step, examine the diverter valve for any signs of water leakage. If you notice dripping water from the valve assembly, verify the condition of the connections and the condition of any washers or seals of the valve. 

A corroded or damaged washer is the main culprit for leaks. 

For instance, use a flathead screwdriver, pull out the washer, and inspect it. If it looks filthy, clean it properly or if required, replace it.

Phase 3: Check Adjustment 

Incorrect adjustment of the diverter valve can cause a lack of hot water flow through the shower head. Thus inspect the valve adjustment and ensure it is properly aligned to the shower head. 

In case it looks stiff or sticky, you can lubricate it with a plumber’s grease to help it move more freely.

5. Malfunctioning Thermostatic Mixing Valve

If your shower has a thermostatic mixing valve to control the water temperature, it would cause insufficient hot water from your shower head. 

The thermostatic mixing valve is basically designed to maintain a constant water temperature by mixing the hot and cold feeds in the correct ratio before sending it to the shower head.

However, in case the thermostatic valve is not functioning correctly, it is obvious it fails to regulate water temperature, resulting in insufficient or no hot water. The best possibility is it is not adjusted correctly. If it is set too low, you will experience a reduced flow of hot water.

Over time, the valve becomes blocked by dust or scale deposits. At times, the faulty mixing valve is the culprit itself.  

How To Fix:

Start by turning off the water supply to your shower system. Now remove the shower handle, trim plate, or any other coverings to access the mixing valve.

You will notice a few pipe attachments to it. Of them, one is for hot water supply and another one is for cold water.

 Anyway to adjust the valve, simply remove the cap from the valve and turn the above adjustment knob counterclockwise using an Allen key. It will increase the water temperature.

Before assembling all, don’t miss to inspect the valve for any signs of obstructions or deports. 

• If so, try to clean it using a soft brush or toothbrush. To remove sediment buildup, take a towel and damp it in a vinegar cleaner. 
• Place it over her valve body, leave it for 15-20 minutes, and rinse it with clean water.
• Once cleaning is done, reassemble the TMV back in place. If still it’s not delivering hot water properly, consider replacing it with a new one. 

6. Improper Installation Of The Shower Head

If your newly installed shower head isn’t delivering hot water as you demand, another possibility is the shower head isn’t installed correctly. Proper installation is a must to ensure the showerhead functions correctly and delivers hot water. 

If there is any loose connection between the showerhead and the shower arm, it causes an unstable showerhead. Also if you are using an incompatible shower head that does not fit correctly with the shower arm, it may affect the proper balance of the water temperature.

How To Fix:

Insect your shower head to ensure that it is installed correctly. If required reinstall the showerhead, ensuring it is securely tightened onto the shower arm. 

If necessary, use a wrench or pliers. Also before attaching the shower head, consider applying a plumber’s tape to the threads on the shower arm. This will create a watertight seal and prevent leaks. 

Lastly, if you notice that the existing shower head and the shower arm are not compatible, you will need to replace it. Consider choosing a showerhead that matches the shower arm’s specifications to ensure a proper fitting.

7. Using Low Flow Showerhead

After resolving all the above factors and still struggling to get adequate hot water from your newly installed showerhead, the best chance is you have a low-flow showerhead. Low-flow showerheads are designed to reduce water consumption by restricting the flow of water. Users mainly use it in the concern of conserving water and energy.

Though an excellent way to save on utility costs and reduce water consumption, it can have unintended consequences like longer shower times.  

Prolonged showers with low-flow showerheads affect the temperature balance when you are using this type of shower, certainly, you will need to take longer showers because the reduced water flow may not feel as satisfying as you want.

How To Fix:

Consider upgrading your shower system with a high-flow shower head. It will ensure you a more significant volume of hot water compared to the low-flow showerhead. With a high flow rate, there will be less chance of running out of hot water during your shower.

Other Major Reasons For No Hot Water In Your New Shower?

In most cases, you may find that the issue is not related to the shower head replacement itself.  Several more factors may lead to a lack of hot water in your newly installed shower system. 

Let’s explore all the reasons with the effective fixes:

8. Water Heater Issues

If you have a water heater in your home, it can be responsible if you are not getting water from your shower at your desired temperature. If your water heater is not producing hot water as it should, it is obvious you won’t get hot water from your showerhead. 

There are several reasons responsible for this issue. Such as:

• Insufficient fuel supply (For gas water heater)
• Degradation in power supply
• Faulty heating elements 
• Hard mineral build-up
• Wrong temperature setting
• Or due to a faulty thermostat  

How To Fix:

Start by inspecting the thermostat setting on your water heater. For instance, 120 degrees Fahrenheit is the safety recommendation against scalding. Set the temperature in this range.

Next, if you have a gas-operated water heater, verify sufficient fuel supply in the unit. Turn on the gas shut-off valve all the way or refill the LP tank. Also, make sure it’s not leaking and the pilot light is lit.

In case of a malfunctioning electric water heater, check for tripped circuit breaker or faulty wiring connection. Reset the breaker or fix the electrical problem. 

In most cases, you may have to descale and flush your water heater if there is a hard mineral buildup in the heating element. If required replace the faulty heating elements.  

9. Air In The Plumbing System

The next big suspicious fact for why you are not getting adequate hot water from your shower is the airlock in the water pipes. 

It is even a common phenomenon that most users face after working with the plumbing system. After installing a new fixture, a trapped pocket of air may be created within the plumbing system that obstructs the flow of water. 

For instance, you may hear when you turn on your shower.

Don’t worry, you can easily resolve the issue by following some tricky methods:

How To Fix:

Start by turning on your shower valve at full speed. Leave it open and allow the water to run for a few minutes. You may notice air bubbles escaping from the showerhead. This is a sign that the airlock is clearing.

You will need to continue to turn the water until it reaches a consistent temperature. When you feel a change in the temperature, the airlock is cleared.

10. Blocked Or Leaky Pipes

In case of insufficient hot water flow in the system, blocked or leaking water pipes can be one of the major reasons to blame. If the hot water pipes are partially blocked by clogs or mineral deposits, it restricts the flow of hot water to your shower. 

Besides, leaking water pipes can also lead to a loss of hot water before it reaches your shower. If there are any damages in the pipes, hot water easily escapes through the leak, resulting in reduced hot water flow in your shower.

How To Fix:

Inspect the water pipes for any signs of blockages or leaks. If the clog is visible to you, you can easily remove it using a pipe snake or auger. 

In case you suspect a leak in your hot water pipes, try to repair it with a pipe repair clamp or pipe repair tape. If you find severe leakage or blockages that are harder for you to handle, we recommend to consult a professional one for your best assistance.

11. Bad Water Pressure

In addition to the plumbing pipes problems, low water pressure is another probable factor that may lead to low or no hot water flow to your shower system. 

If the main water shut-off valve going through your bathroom fixtures isn’t closed or partially closed, it will also affect the pressure of the water coming out of the shower head. Also, with low water pressure, it’s more challenging to maintain a consistent temperature in the shower.

How To Fix:

In order to deal with the issues, you will increase the water pressure of your house. Here is all you need to know about how to increase water pressure in a shower.

FAQs:

In Closing

Still, struggling with your recently changed shower head lost hot water issue? I bet not! Low or no water pressure after upgrading the existing shower system isn’t very uncommon. 

Most users face this situation and try to track down the actual faults. Well! We’ve nicely covered all the major factors behind this unexpected consequence with effective DIY solutions. Just follow each of the diagnose methods suggested above and regain a satisfying and comfortable shower with your upgraded showerhead.