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Hot Water Systems – Common Causes of Failure

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Hot water systems are an essential plumbing fixture in most households in Australia. They provide comfort and convenience by supplying hot water throughout the day, all year round. Unfortunately, many families tend to forget about their hot water systems once something goes wrong and the supply stops. If you want to avoid such situations, it is recommended that you pay attention to the maintenance of your hot water system.  

A functional hot water system is essential for any household to carry out daily activities such as showering, washing dishes, or laundry. However, when there is a malfunction, it can cause significant inconvenience and hassle. This blog will discuss some of the most common reasons hot water systems malfunction.  

4 Causes Why Your Hot Water System Isn’t Working  

Damaged Tempering Valve  

In a storage hot water system, a tempering valve is used to prevent scenarios of boiling water by blending hot water with cold water to achieve a pre-set temperature. However, as the tempering valve ages, it can lose accuracy, leading to poor water temperature control. If you experience sudden blasts of scalding hot water while taking a shower, followed by cold water, then regular water, this cycle repeats without maintaining a consistent and comfortable water temperature. A hot water plumber can inspect the issue and replace the faulty tempering valve to restore your system’s performance and efficiency.  

An Electronic Error or Collapse  

If you own an electric hot water system, it relies on electricity to function. One of the most common reasons a hot water system stops working is a blown fuse, which is easy to identify and fix. However, if you notice any other issues with the hot water unit, it is best to call a licensed plumber. They can examine the team and test the circuit board to avoid potential hazards.  

Leaking Tank or Leaking Gas  

Dealing with a leaking water tank from a hot water system is a critical issue that should not be ignored. It is expected to have leaks in either the hot water tank or surrounding pipes, and it requires the attention of a professional to fix the problem. The best approach to resolving this issue is to call a local plumber specialising in Hot Water system repairs in Katoomba. They can help you identify the leakage’s root cause and determine the degree of damage.  

If you notice a water leak from your hot water system, it’s essential to seek guidance from a hot water plumber. Depending on the severity of the leak, they can suggest either repair or replacement. In case of a gas leak from your hot water system, it’s crucial to consider it a plumbing emergency and contact a licensed gas plumber immediately. Gas leaks can be hazardous, so it’s good to leave the repairs to a trained professional.  

Outdated Hot Water System  

If you are a homeowner, you may need to bring in a hot water plumber and install a new system if your old appliance stops working unexpectedly. This is a common problem that can occur with any hot water system. However, if you have maintained your hot water system well, it should function properly and last 10-15 years. If your hot water system is giving you trouble and is a decade old, it is time to consider a replacement. This will save you the hassle, time, and money in the long run.  


If you notice any of the following issues or are concerned that your hot water system is about to fail, feel free to contact the professionals at Blue Mountains Plumbing & Hot Water for assistance. Our plumbers are experts in identifying faults in hot water systems and can inspect the condition of your system to recommend the best course of action. Whether you need repairs for gas and water leaks or hot water system repair in Katoomba, our highly trained plumbers have covered you. 


Disclaimer: This is generic Information & post; content about the services can be changed from time to time as per your requirements and contract. The images we use in this context have been taken from canva. To get the latest and updated information, contact us today or visit our website. 

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