White instant water heater installed with circuit breaker on the wall of bathroom with free copy space. Safety first concept.

Most Common Signs You Need To Replace Your Water Heater

Your water heater is an essential part of your home and, most of the time, it quietly does its job. However, like all appliances, it will eventually get too old or the parts too worn and you’ll need to start thinking about a replacement.

When this happens it’s a good idea to speak to a professional plumber Sydney who can help advise you on the correct path and sort out any issues for you. 

Of course, t helps to recognize the signs that your water heater is o its last legs, which can help you to get it sorted before it breaks. It can be hard taking a cold shower every morning. 

Brown Water

Brown water can be a sign of contamination, you’ll need to verify if anyone else in your neighborhood has the same issue. If they don’t then the brown water is most likely rust inside your hot water tank. 

Most tanks have a dedicated rod that corrodes before the tank. However, if this isn’t replaced regularly then the tank itself will start to rust. The more it rusts the higher the likelihood of leaks happening. 


Brown water is a good indication that you have rust inside your water heater. But, your water heater can also rust from the outside in. In this instance, you are more likely to see the tell-tale copper green of corrosion. This happens when the metal reacts to air and water. High humidity levels or a slight leak can make the outside of your tank or the connections corrode, potentially spelling the end of your water heater.

If you see actual rust on the outside of your tank then there is a good chance that the tank is about to leak.

Warm Water

Warm water is fine if that’s what you want. But, if you want hot water and are only getting warm then the tank doesn’t have enough hot water in it. 

Assuming your family haven’t used all the hot water this points to an issue with the heater. It can be a build p of sediment making the heater inefficient. This can be cured with a good flush. But, it is often a sign that your water heater is ready to be replaced. 

Strange Noises

In general, a water heater is very quiet, you may hear a slight hum if you are close to it and the house is quiet. But, if it starts to make strange noises you’ll want a plumber to take a look at soon as possible. The noises are likely to be a sign of an issue with your plumbing or heater. The plumber can identify the issue and tell you if it’s time to replace your water heater.

One thing is certain. If your water heater is not behaving as normal you need to get a plumber to take a look. It is much easier to patch it up and get organized for a new one with a little warning!