Water Boiler Problems


Like all man-made objects, water boilers are prone to crack, whistle or collapse at any given point in time. The quality of the construction only gives you an idea of when this is going to happen. So, let us say that something happened, and you are faced with some water boiler problems. You either call the repair man or fix the problem yourself. Here are a few of the most common water boiler problems that you might encounter:

There is not enough hot water

You are taking a shower and suddenly you lose pressure. You made sure that there is not any leakage by checking all the pipes. In this case the problem might just be the accumulation of mineral deposits which reduce the efficiency.

You can solve this type of water boiler problem by flushing the tank and cleaning those sediments. Do this by turning off the boiler, letting the water cool after which you attach a hose to the drain valve, leading somewhere convenient. Empty the tank by releasing the valve, clean it and then reverse the process and fill it up with fresh water.

The hot water is too hot

Steam is accumulating in the bathroom and boiling hot water bursts through the faucet? Then you might have a faulty pressure release valve. These valves are there to make sure the boiler shuts off when the temperature reaches a set mark. They can fail if installed incorrectly.

When dealing with this kind of water boiler problem you need to turn down the temperature and let the water cool off. Do not rush the process, just have patience.  When this happens, simply replace the pressure relief valve. Turn the boiler back on and wait for an hour. If all is good, then the problem has been fixed.

Water hammer

This hammering noise which occurs inside the pipes is a result of water hitting the piping system. Traveling water moves at such a speed that when a valve shuts off, the resulting vibrations spread amazingly fast and make a pounding noise. Damage to the pipelines will occur if the problem is not mended with.

This water boiler problem can be fixed by attaching water hammer arrestors. Most plumbing shops have them and instalment should not be a problem. They act like a cushion, a cushion of air to be more precise, and eliminate the brutality of the water stopping due to valve activation.

Scalding dangers

Scalding problems may occur even though you know how to set the water boiler so that the water temperature is exactly right. There may be some individuals that do not fully understand how this system works. Small children or elderly people can mistake the settings and turn the heat too much. Scalding is the most common accident when dealing with water boilers.

What is worse is that they happen very fast, for example a water temperature of 140 F can cause injuries in less than 5 seconds, higher temperatures, of which the water boiler is capable by the way, take even less time to cause scalding. It is best you set the boiler to 120 degrees to prevent any problems.


When hot water is used amazingly fast, a large amount of cold water replaces it and fills the tank. This fast transition from hot to cold will cause the tank walls to condensate a lot. This issue can be avoided by moderating the pressure at the faucet. Condensation can also be mistaken with water boiler leaking.

Dip tube collapse

The dip tube is the pipe that brings in fresh cold water into the tank. There it is heated and sent back up as hot water. When the dip tube is cracked or broken cold water will mix with hot water at the top. It will be as if the water boiler is running out of hot water.

The appearance of milky hot water

Water boiler problems come in many forms. Sometimes they influence the water in such a manner that it appears to be something else. When water heats up its ability to hold oxygen and other gases fades away. Due to this problem bubbles will gather and give the water the appearance of milk. This problem is easily resolved by allowing the water to stand for a few minutes.

These are the most common problems encountered with water boilers. If you think that you do not have the experience to properly do water boiler repairs on your own, do not. You can cause more damage and even hurt yourself.