Nobody likes to discover their hot water cylinder isn’t working properly. Whether your shower runs cold midway through, or the noise coming from deep within it is too much to ignore – signs of ailing health can mean the end of its life. But how do you know when that time has come? Knowing if a hot water cylinder replacement is needed can be tricky, but avoiding costly ‘surprise’ replacements becomes easier with a little know-how. We’ve compiled 6 telling signs to know if your hot water cylinder needs to be replaced.
Inconsistent Hot Water
There’s nothing like the warm and soothing feeling of taking a steamy shower at the end of a long day. So, when you notice that it takes longer for hot water to reach your faucet or the water isn’t hot enough, it can be frustrating. Not to worry though, there’s likely a simple explanation for this: your hot water cylinder could be on its last legs. With daily use, your hot water cylinder experiences through a lot of wear and tear, and eventually, it will need to be replaced. It’s critical to address this issue as soon as possible, as a malfunctioning cylinder can result in even bigger problems down the line.
Odd noises coming from your cylinder
Have you noticed a sudden increase in noise coming from your hot water cylinder when it’s turned on? Noise can be an indication of sediment build-up. Sediment build-up occurs when minerals and other particles in the water settle at the bottom of the tank over time. This can lead to a host of problems, including reduced efficiency/output, increased energy costs, and a shorter water heater lifespan. Once your cylinder starts leaking due to build up, repairs become impossible and you’re going to need a replacement.

Rusty water from your tap
If rusty water comes out of your hot water tap, it’s important that you act immediately. While it might seem like a small issue, rust in your water can be dangerous for you and your family. It’s a sure sign that your hot water cylinder needs replacing. Rust is not only unsightly, but it can also lead to other issues, including clogged pipes and damage to your appliances.
Leaks from your cylinder
Uncommonly high energy bills
We all dread receiving a higher than usual energy bill, but it can happen from time to time. This may not always be a sign of inefficiency or wastefulness on our part, as sometimes it indicates that something needs replacing. One common culprit could be your hot water cylinder.
Over time, hot water cylinders can become less efficient and wear down, which results in increased heating costs. It’s critical to keep an eye on your energy bills and be vigilant for sudden spikes. This could be a sign that it’s time to replace your hot water cylinder. Taking care of this will not only reduce your energy bill but also ensure that your hot water operates efficiently.
How old is your cylinder?
Hot water cylinders typically have a lifespan of around 10-15 years, so if yours is reaching that age, it might be time to consider a replacement. Don’t wait until it’s too late and your cylinder breaks down. Not only will replacing your cylinder provide you with peace of mind, but it will also ensure that your home runs efficiently and safely.
These are just some of the signs that your hot water cylinder needs to be replaced. Even if you aren’t experiencing any of these issues right now, it is advised to check in on your cylinder annually. This is to make sure it runs optimally and safely. If you need to replace your hot water cylinder, the team at RLM Electrical can help supply and install a replacement cylinder. Get in touch with us today for expert advice and assistance with your hot water cylinder – we’ll be more than happy to help!