How Come There Is Hot Water In Some Faucets But Not In Others?

Imagine turning on your bathroom sink faucet, eagerly anticipating the warmth of hot water to wash your hands, only to be met with an icy blast.

Meanwhile, the hot water flows effortlessly from the tap in the kitchen, just a few steps away.

If you’ve ever experienced the perplexing situation of having hot water in some faucets while others stubbornly refuse to provide anything but cold water, you’re not alone.

It may be that you have cold or lukewarm water, not hot, coming from the shower head, but it may not be evident anywhere else in your house.

From bathroom and laundry faucets to those in the kitchen, it can appear in any faucet in the house.

Understanding the Problem

Understanding the Problem

A thorough understanding of the reasons why hot water won’t come out of some faucets is crucial for solving the problem. To achieve this goal, you need to identify which faucets are affected, the extent of the problem, and the time it began.

When Did The Issue Start?

When identifying the cause of a plumbing problem, it is essential to determine when the issue began. Water pressure or temperature changes could be signs of a broken pipe or valve.

You might need to have your water heater or plumbing system checked if this problem has been persistent for a while.

You may want to try and recall any specific events that may have led to the problem. Did you, in recent months, install new fixtures or make any changes to your plumbing system?

Could your pipes have been damaged by extreme weather conditions – freezing temperatures in the winter or heat waves during the summer?

Performing a visual inspection of all relevant components can provide insight into the cause of the problem. A visual inspection of pipes and valves can uncover places requiring repairs or replacements due to corrosion or rust.

Is The Issue Limited To Hot Water, Or Is Cold Water Also Affected?

Is The Issue Limited To Hot Water, Or Is Cold Water Also Affected

Check whether the problem is isolated to hot water lines or if cold water lines are also affected. Symptoms of a malfunction in your water heater include only hot water being affected.

If both hot and cold water are affected, it may indicate a more serious plumbing problem. You should first thoroughly examine all faucets and fixtures in the affected area.

Using the shower and sink taps and checking the temperature and pressure for abnormal changes can be helpful.

A visual inspection of the pipes leading to these fixtures can also help identify any damage or obstructions that may be the cause of the issue.

Additional investigation may be required if no visible issues are found with the pipes or fixtures. Among the other parts of the plumbing system that could be investigated are valves and pumps that regulate water flow.

Is It A Complete Lack Of Hot Water Or Just Lukewarm Water?

Is It A Complete Lack Of Hot Water Or Just Lukewarm Water

When you cannot get hot water from your faucet, it’s important to identify what’s causing the problem. Has the water been turned off, or has it simply been lukewarm?

The issue with the heater is likely to cause no hot water at all. It might be a malfunctioning heating element, no power supply or fuel, a damaged thermocouple or thermostat, or even a broken expansion tank.

Meanwhile, a lukewarm bath – not completely cold, but not quite hot enough – could have a variety of causes.

It could be because of your hot water heater’s temperature settings (Be sure to check that first!), but it could also be caused by a leaking faucet cartridge or a clogged aerator in one of your sink faucets.

Ensure those are checked and that any parts that need to be replaced are replaced.

Which Faucets Are Affected?

It’s essential to identify which faucets are giving you hot water if you’re having a problem. Ensure your faucets are all affected or only a few of them in your home – including those in the kitchen and the bathroom.

A small fix can be made quickly and easily if the problem is isolated in a specific part of your house. In contrast, you may have a more significant issue if each faucet is affected.

Why You Get Hot Water From Some Faucets But Not Others

Why You Get Hot Water From Some Faucets But Not Others

It can become frustrating and inconvenient when you don’t have hot water for everyday activities such as taking a hot shower, washing dishes, and cleaning.

Those who are experiencing hot water coming from some faucets but not others will find this article helpful. It will walk you through a few possible reasons for this problem.

There are several common reasons why some faucets cannot supply hot water. Fixing some of these problems is simple. The presence of some symptoms may indicate a larger problem that needs professional attention.

Blocked Plumbing

Put on your hot water tap, and nothing will come out. If this happens with all the taps in your house, see if it is a general problem. The kitchen sink, shower faucets, and anywhere else where hot water is dispensing should be checked.

It may be that the hot water coming out of the other taps is blocked, but not the one connected to the hot water line.

Mineral deposits, debris, and sediment likely cause a blocked faucet. In addition, the pressure of the hot water contributes to this issue. As a result of this issue, low water pressure will prevent the full flow of water to the faucets.


The following are possible solutions for blocked plumbing that may result in water not dispensing from the hot side of the faucet.

Be sure that the control valve is raised to its highest point to avoid limiting the already reduced pressure. If you suspect you have a blockage, check both the aerator and the faucet.

If pressure does not restore flow, you’ll have to remove the screw at the end and check if there is dirt compounded in the aerator. If this were the case, it would be easy to remove the dirt and attach it to the faucet again.

In another case, the faucet itself may be blocked, so you’ll need to turn off the water supply lines to remove and clear it. Cleaning the tap with vinegar, water, and a long brush is possible.

A good solution is to let the vinegar soak into the faucet overnight. Using this technique will make removing the dirt much more effortless.

Airlock Issues

Airlock Issues

A jammed faucet can cause water not to dispense from the hot side if trapped air is present, which leads to partial or total obstruction.

It occurs because the hot water unit is located from a water heater and isn’t directly connected to the main water line. Therefore, the hot water pipes already have reduced pressure.

Cold water lines have sufficient force to push any trapped air through them, but hot water lines’ pressure is not high enough to do the same, resulting in airlocks.

This pressure difference could result in cold water coming from your hot water heater and cold water from your water heater.


Follow these steps to fix this issue.

Step 1: Put a hose pipe at the mouth of the hot water tap and at the end of the cold water tap without leaving a gap between them.

Step 2: Open the hot and cold water faucets alternately. It should be enough pressure to release any trapped air in the hot water line once the cold water line is turned off.

Step 3: Turn the machine off after 30 seconds. Several more times will increase the effectiveness of this trick.

Problem with Valves

Boilers employ diverter valves to alternate between different heating regions of a house, so the diverter valve is crucial.

There may be a problem with your diverter valve if the heat in your house is on, but no hot water is coming from the tap.

If this is the case, then it might be stuck, broken, or detached. As a result, the water flow valve may have been turned off unintentionally, causing a blockage in the flow of hot water.

The components of your water heater should be inspected if you are having trouble producing hot water.

Hot Water Tank

If your hot water doesn’t get warm enough or runs out quickly, your hot water tank might be to blame. Ensure power is coming to electric hot water heater tanks, and check that no fuses have blown.

Additionally, make sure that the thermostat and heating elements are working properly. The tank of a gas-fired water heater should contain propane or natural gas.

This gas is sent to a control valve to light the pilot light, which sends a small amount of fuel.

As a result, the thermocouple heats up and sends an electrical signal back to the burner to maintain the desired temperature the thermostat sets.

It is possible to suffer from an insufficient hot water supply if any of these components fail to function properly.

Frozen Pipes

Frozen pipes can be a common reason for no hot water coming out of your tap during winter if you live in a cold climate.

Frozen pipes prevent water from flowing successfully to your taps if they are exposed to low temperatures. It’s crucial to insulate your pipes during the winter season to keep them from freezing.

When you encounter this problem, it is possible to try thawing them with a hair dryer, heat gun, or heating pad if you are able to reach them. If enough heat is applied, the pipe should unfreeze, and the water will once again flow.

Other Possible Causes

The cause may also be related to other factors. This could be the result of incorrectly installed faucets or pipes as well as a broken pressure regulator.

Another problem could be leaky pipes. Then you’ll need the help of a professional plumber who can pinpoint and fix the problems.

Your plumber will use diagnostic tools to check underlying plumbing components and determine the source of the problem.

They will then recommend additional changes or adjustments to ensure everything operates as it should and that proper functionality is restored.

Final Words

Taking care of plumbing is no joke. DIY skills aren’t needed in this area if you’ve never done this kind of work before.

You should call a professional plumber if you don’t know how plumbing works and you’re having problems with your hot water.

Fortunately, plumbers are skilled professionals. They can quickly identify the issue and provide a solution, so you won’t waste hot water.

Leave a Comment


Go Full DIY has gained recognition on prominent tech and design platforms, praised for its user-friendly interface and innovative approach to delivering DIY content. Join the community that tech-savvy DIY enthusiasts are talking about.

Looking for DIY advice from a professional?

Schedule a call now!