So your old thermostatic cartridge wasn’t working for some reason and you have replaced the thermostatic cartridge. Yet, no cold water. You are wondering why there is no cold water in shower after replacing cartridge.
There are several possible reasons why you may not have cold water in your shower even after replacing the cartridge. The non-return valve on the hot side could be installed incorrectly, the cartridge may be installed improperly, or the cold water supply could be clogged.
Sediment in the faucet’s cold side or a failed pressure balance module can cause issues. Additionally, using the wrong cartridge, a faulty cold water shutoff, or the shutoff in the basement being off could prevent cold water flow.
Don’t worry! We have a fix for every problem. Stay with us until the end.
Why is there No Cold Water in Shower After Replacing Cartridge?
Let’s the reasons in detail. It will help you understand the problem and learn how to fix no cold water in shower.
The non-return valve on the hot side is installed the wrong way round
A non-return valve allows water to flow in one direction only. When installed incorrectly, it can cause problems with the cold water supply. The valve may be installed backward, preventing the flow of cold water.
The cartridge is installed incorrectly.
If the cartridge is installed incorrectly, it may block the cold water flow. For example, if the hot side is lined up with the cold side of the cartridge, the safety device will prevent hot water from flowing, and there will be no cold water. Following the manufacturer’s instructions carefully when installing the cartridge is important.
Issues with cold water supply
Sometimes the problem may not be with the shower valve or cartridge but with the cold water supply itself. If the cold water supply is clogged or shut off, it can prevent water from flowing.
The faucet’s cold side is plugged up with sediment
The cold water faucet may be clogged with sediment. Sediment can build up over time and cause blockages in the pipes, preventing water from flowing through. Clearing out the sediment can be difficult and may require opening up the wall behind the faucet to access the pipes. It’s important to address this issue promptly to avoid further damage to the plumbing system.
The pressure balance module may fail
The pressure balance module in your shower valve can fail and cause issues with your cold water supply. This module is responsible for maintaining a consistent balance between hot and cold water, and when it fails, it can result in no cold water in your shower.
The cartridge might be the wrong one.
It is important to purchase the correct cartridge for your shower system. If the wrong cartridge is installed, it may not allow cold water to flow properly. The cartridge may not be suitable for the shower system if it’s the wrong one. Checking the manufacturer’s instructions or consulting a professional can help you determine the right cartridge for your shower.
Faulty cold water shutoff
A faulty cold water shutoff can cause problems with your shower’s cold water supply. This can occur due to wear and tear, improper installation, or damage. A faulty shutoff may prevent cold water from flowing properly, leading to a lack of cold water in your shower. It’s important to diagnose and address any issues with the shutoff to ensure the proper functioning of your shower system.
The shutoff in the basement is off
The shutoff valve in the basement controls the water supply to your shower. If it’s off, no water, including the cold water, will flow to the shower. This could be why you’re not getting any cold water in the shower after replacing the cartridge. It’s important to ensure the shutoff valve is fully open so the water can flow freely to the shower.
The shower valve has integral stops with the cold off
The shower valve may have built-in shutoffs for maintenance purposes. These integral stops can sometimes be accidentally turned off, causing the cold water to stop flowing. It’s important to check the integral stops and ensure the cold is not off before assuming the issue is with the cartridge or valve.
How to solve No Cold Water in Shower After Replacing Cartridge
Let’s see the solutions now.
Correcting Non-Return Valve Installation
- Shut off the water supply to the affected fixture.
- Disassemble the valve body and remove the non-return valve.
- Check the arrow or directional marking on the valve to ensure proper orientation.
- Reinstall the valve with the correct orientation.
- Reassemble the valve body and turn on the water supply.
Correcting Incorrect Cartridge Installation
- Shut off the water supply to the affected fixture.
- Remove the handle and trim kit to access the cartridge.
- Check the installation orientation and position of the cartridge.
- If needed, remove the cartridge and reinstall it correctly.
- Reassemble the handle and trim kit.
- Turn on the water supply and check for proper operation.
Troubleshooting Cold Water Supply Issues
- Check if the shutoff valve for the cold water supply is fully open.
- Inspect the supply line for any kinks or blockages.
- Check if the faucet aerator or showerhead is clogged with sediment.
- Check if there are any leaks or damage to the supply line.
- If needed, replace the shutoff valve or supply line.
- Flush out any sediment buildup in the faucet or showerhead.
Sediment build-up in the faucet’s cold side:
- Turn off the water supply to the faucet
- Remove the faucet handle
- Unscrew and remove the cartridge or valve stem assembly
- Clean the sediment from the cartridge or valve stem assembly using a soft-bristled brush and vinegar
- Reinstall the cartridge or valve stem assembly and faucet handle
- Turn the water supply back on and test the faucet
Pressure balance module failure:
- Turn off the water supply to the shower
- Remove the shower handle and trim plate
- Remove the pressure balance module
- Replace the pressure balance module with a new one
- Reinstall the trim plate and shower handle
- Turn the water supply back on and test the shower
Incorrect cartridge installed:
- Turn off the water supply to the faucet or shower
- Remove the faucet handle or shower handle and trim plate
- Remove the existing cartridge
- Take the existing cartridge to a plumbing supply store to identify the correct replacement
- Install the correct replacement cartridge
- Reinstall the trim plate and handle
- Turn the water supply back on and test the faucet or shower
Faulty cold water shutoff:
- Turn off the main water supply to the house
- Locate the faulty shutoff valve
- Replace the faulty shutoff valve with a new one
- Turn the main water supply back on and test the affected fixture
Basement shutoff valve turned off:
- Locate the shutoff valve in the basement
- Turn the shutoff valve on
- Test the affected fixture to ensure the water is flowing properly
Shower valve with integral stops:
- Turn off the main water supply to the house
- Locate the integral stops on the shower valve
- Turn the cold water integral stop to the on position
- Turn the main water supply back on and test the shower
No hot water after replacing cartridge
The same thing can happen with hot water after replacing cartridge. The reasons could be,
- Non-return valve installed incorrectly
- Incorrectly installed cartridge
- Issues with cold water supply
- The faucet’s cold side plugged with sediment
- Pressure balance module failure
- Wrong cartridge installed
- Faulty cold water shutoff
- Shutoff in the basement is off
- Shower valve has integral stops with cold off
And the solution will be
- Check and reinstall the non-return valve correctly
- Reinstall the cartridge correctly following the manufacturer’s instructions
- Inspect and clear any clogs in the cold water supply
- Clean sediment from the cold water faucet
- Replace the pressure balance module
- Install the correct cartridge for the shower system
- Repair or replace faulty cold water shutoff
- Open shutoff valve in basement
- Check integral stops on shower valve and turn cold on if off.
Are you experiencing low water pressure after replacing cartridge?
- Check the aerator for blockages
- Ensure the correct cartridge size and type was used
- Check for air trapped in the plumbing system
- Make sure the shut off valve is fully open
- Clear any debris from the water lines
- Inspect the pressure reducing valve for wear
- Check for cracked or damaged pipes
Do you have no water after replacing shower cartridge?
- Check the shut off valve and make sure it’s fully open
- Verify that the cartridge is the correct size and type
- Check for blockages or debris in the water lines
- Inspect the cartridge for proper installation
- Make sure there is no air trapped in the plumbing system
- Look for any cracked or damaged pipes that could be causing the issue
- Consult a professional plumber if necessary.
Fix shower faucet that is only hot or cold. Valve cartridge replacement.
If you’ve recently replaced the cartridge in your shower and there’s now no cold water, don’t worry – this is a very common problem that has an easy fix. First, check to make sure that the new cartridge is properly seated and tightened. If it seems loose, try tightening it with a wrench.
If that doesn’t work, then you may need to replace the O-ring around the cartridge. These are usually located under the screw-on cap at the top of the cartridge. Once you’ve replaced the O-ring, turn on the water and test the temperature.
It should be back to normal!
No Cold Water in Shower But Sinks are Fine
If you’re like most people, a cold shower is the last thing you want first thing in the morning. But if you find that your shower suddenly has no cold water, while your sinks are fine, don’t panic. There are a few possible explanations for this phenomenon, and none of them are cause for alarm.
One possibility is that someone else in your household has used up all the cold water. If everyone takes a shower at the same time, for instance, the hot water heater may not be able to keep up with demand and the last person in line will only get lukewarm or even hot water. In this case, just wait a few minutes and try again.
The problem should resolve itself shortly.
Another possibility is that there’s an issue with your plumbing. If your home has old galvanized pipes, they may be corroded on the inside and restricting the flow of water.
This can be easily fixed by a professional plumber. Or, it could be something as simple as a clogged aerator on your faucet – again, an easy fix for a plumber or even a handy do-it-yourselfer.
So if you find yourself taking cold showers more often than you’d like, don’t despair – there’s likely a simple explanation (and solution!) for it!
How to Fix No Cold Water in Shower
If you’re getting no cold water in your shower, there are a few potential causes. First, check to see if the cold water handle is turned all the way on. If it is, then the next step is to check your home’s main water shut-off valve.
This valve is usually near your water heater or the main water line enters your home. If this valve is turned off, or even partially closed, it can restrict cold water flow to your shower (and other fixtures). Assuming that both the handle and shut-off valve are in the correct position, your plumbing may have an issue.
A clogged pipe or fixture can cause low water pressure, which will result in lukewarm or cool showers. Another possibility is that your hot and cold water pipes are reversed. This can happen if they were installed incorrectly, and it means that hot water is flowing into the coldwater pipe (and vice versa).
This will obviously give you very unpleasant showers! If you’ve checked all of these things and you’re still not getting anycoldwater in your shower, then it’s time to call a plumber. They’ll be able to determine what’s causing the problem and fix it quickly so you can get back to enjoying normal showers again.
Replaced Moen Cartridge No Cold Water
If you have a Moen faucet that is not providing cold water, it may be due to a faulty cartridge. The good news is, this is an easy problem to fix! Simply remove the old cartridge and replace it with a new one.
If you’re not sure how to do this, don’t worry – we’ll walk you through the process step by step.
First, locate the setscrew on the handle of your faucet. Use an Allen wrench to loosen and remove the setscrew.
Next, pull off the handle – it should come right off. Underneath the handle, you will see the cartridge. To remove it, simply unscrew the retaining nut and pull out the cartridge (it may help to use pliers for this).
Now it’s time to install the new cartridge. First, make sure that you lubricate the O-rings on the new cartridge with petroleum jelly or plumber’s grease (this will help ensure a tight seal). Screw in the retaining nut finger-tight, then use yourAllen wrench to tighten it another 1/4 turn (do not over-tighten!).
Finally, reattach the handle and screw in the setscrew – again, being careful not to over-tighten. That’s it! Your faucet should now be working properly once again thanks to your quick repair job.
No Cold Water Single Handle Shower
If you have a single handle shower, there’s a chance that the water temperature could be off. This is because the cold and hot water are mixed together before they reach your shower head. If you’re not getting any cold water at all, it’s possible that the diverter valve is stuck in the “up” position.
This valve is responsible for sending water to either the shower head or the tub faucet. If it’s stuck in the up position, then all of the water will go to the shower head and none will go to the tub faucet. In order to fix this, you’ll need to take off the handle and use a flathead screwdriver to push down on the diverter tab.
If you’re only getting lukewarm water from your single handle shower, it could mean that your mixing valve needs to be adjusted. The mixing valve is what controls how much hot and cold water is mixed together before it reaches your shower head. You can usually find this valve behind the cover plate of your shower’s control panel.
To adjust it, simply turn it clockwise for more hot water or counterclockwise for more cold water.
No Cold Water in Bathtub Only
If you have no cold water in your bathtub only, there are a few things that could be the culprit. The first thing to check is whether or not your home has overall water pressure. If the issue is with just the cold water in your bathtub and not other areas of your home, it’s likely that a valve isn’t fully open or there may be an issue with the piping leading to your tub.
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Why is There No Cold Water Coming Out of My Shower?
If you’re experiencing a lack of cold water coming out of your shower, there are a few potential reasons why. First, check to see if the water heater is set to the correct temperature. If it’s set too low, the water coming out of the shower will be lukewarm at best.
Secondly, make sure that there aren’t any leaks in the cold water line leading to the shower. A leaky pipe can cause the water pressure to drop, which will result in lukewarm water. Finally, if all else fails, it’s possible that there’s an issue with the actual shower fixture itself.
The valve might be damaged or blocked, preventing cold water from flowing through properly.
Why Would I Have Hot Water But No Cold Water?
If you have no cold water but your hot water is working, there are a few things that could be the problem. It’s most likely an issue with your water heater, although it could also be an issue with your home’s plumbing.
If your water heater is the problem, it could be because the pilot light is out or because the thermostat is set too low.
If the pilot light is out, you’ll need to relight it. If the thermostat is set too low, you’ll need to adjust it so that it’s higher.
It’s also possible that there’s something wrong with the valves in your home’s plumbing.
If one of the valves isn’t open all the way, it could be restricting the flow of cold water. You’ll need to check all of the valves in your home and make sure they’re fully open.
How Do You Fix a Shower That Only Has Hot Water?
If your shower only has hot water, there are a few things you can check to try and fix the issue. First, make sure that the water heater is set to the correct temperature. If it is set too low, it won’t heat the water enough to make it hot.
You should also check the pressure balance valve to see if it needs to be adjusted. This valve helps regulate the water pressure in your shower so that both hot and cold water are evenly distributed. If it’s not working properly, it could be causing your shower to only have hot water.
Finally, check the temperature mixing valve to see if it needs to be replaced. This valve controls how much hot and cold water is mixed together, so if it’s not working correctly, your shower may only have one temperature of water.
Why is My Shower Valve Not Mixing Properly?
If your shower valve is not mixing properly, there are a few things that could be causing the issue. First, check to make sure that the water pressure is equal on both the hot and cold sides. If one side has significantly more pressure than the other, it can cause problems with the mixing valve.
Another possibility is that there is something blocking the flow of water to the valve. This could be anything from a build-up of mineral deposits to a piece of debris caught in the piping. Finally, it’s possible that the mixing valve itself is faulty and needs to be replaced.
If you’ve checked all of these things and still can’t get your shower valve to mix properly, you may need to call a plumber for help.
Conclusion
If your shower suddenly has no cold water after you replace the cartridge, don’t panic. There are a few things that could be causing the problem. The most likely culprit is that the new cartridge isn’t seated properly.
Remove the cartridge and make sure it’s seated correctly, then turn on the water to see if that fixes the problem. If not, there may be an issue with your water line or valve. Check to see if there’s any water coming out of the valve before replacing the cartridge to rule out a bigger issue.
