7 Warning Signs Your Hot Water System is Failing

Identifying the common signs your hot water system is failing can save you from cold showers, repair bills and internal damage. Most hot water systems work constantly with zero hassles, but eventually succumb to wear and tear.

If you’ve heard strange noises, discovered rusty water coming from the taps, or experienced erratic water temperature, consider these to be red flags that point to deeper issues inside your storage hot water heater. Sweeping them under the proverbial carpet can lead to bigger plumbing problems and unnecessarily higher energy bills in the future.

Being aware of emerging hot water system problems means you can act early and avoid replacements.

1. Inconsistent Water Temperature

If your water goes from scalding hot to icy cold mid shower, it’s one of the clearest signs your hot water system is failing.

Inconsistent water temperature usually means the thermostat or heating element inside your hot water heater is playing up. It could also point to sediment built up in the tank that stops the system from heating water evenly. These fluctuations are more than just frustrating; they could be a warning of further damage to come.

Most hot water systems should maintain a steady temperature. If yours doesn’t, it’s time to have your hot water unit checked by a professional.

2. Pilot Light Keeps Going Out

Your gas hot water system’s pilot light constantly going out is more than just a nuisance; it’s a warning sign your hot water unit is failing.

A pilot light flame that either flickers or extinguishes completely can suggest numerous possible issues, including:

• a faulty thermocouple
• gas supply issues or
• a blocked or dirty burner

Without a steady flame, your system can’t heat water effectively. You’re left with cold showers and rising frustration. It’s also a safety risk, especially if gas is leaking. If your pilot light won’t stay lit, it’s best to have a hot water plumber check the system before further damage occurs.

3. Strange or Unusual Noises

Are you hearing strange or unusual noises from your hot water heater? Popping, banging, hissing, or rumbling sounds are often signs your hot water system is failing. These noises are usually caused by sediment buildup at the bottom of the hot water tank.

As the system heats your water, trapped air bubbles push through the hardened layer of debris and create all sorts of weird sounds. Over time, this buildup can damage the heating element and reduce efficiency, leading to higher energy bills and uneven water temperature.

Don’t ignore the noise. Odd sounds often mean your water heater needs attention before further damage occurs.

4. Rusty or Discoloured Water

Rusty or discoloured water flowing from your hot tap strongly indicates that your hot water system is in trouble.

Brown, red or orange-tinged water often suggests that there is corrosion occurring inside the hot water tank or you have ageing internal pipework. In many cases, the anode rod (an essential component that works to prevent rust) may have worn out, allowing corrosion to take hold. Left untreated, this can lead to serious internal damage, leaks or complete system failure.

Rusty water doesn’t just affect your water quality, it also means your hot water heater may need repair or replacement soon. Catch this issue early to spare yourself some avoidable hassle and expense.

5. Water Leaks or Pooling Water

It’s never good to find water pooling around your hot water system. Even the tiniest of leaks can point to a bigger issue brewing inside your hot water heater or storage tank. Keep an eye out for:

• Cracks or corrosion in the water tank.
• Loose pipe connections or worn-out fittings.
• Valve failure caused by excess pressure.
• Weakened tank walls due to internal rust.
• Faulty temperature and pressure relief valves.

Hot water leaks not only waste energy and increase running costs but can also lead to serious internal damage if ignored. If your hot water unit is dripping or leaking, call a licensed plumber ASAP.

6. Low Water Pressure or Flow

Low water pressure from your taps or showerhead is more than merely annoying; it’s often one of the early signs your hot water system is failing.

A steady pressure drop suggests sediment or mineral deposits have built up inside the hot water tank. This build-up is now blocking your pipes or reducing flow from the heating element. Corrosion and internal damage can also restrict water flow, especially in older systems.

If your once-powerful stream has turned into a trickle, it could mean your water heater isn’t working properly. Fix this issue early to prevent further plumbing problems and repair bills.

7. Rising Energy Bills or Reduced Efficiency

If your energy bills are creeping up without any obvious reason, your hot water system may be the culprit.

A failing hot water heater works harder to heat water due to worn-out components, sediment buildup or an inefficient heating element. This extra strain leads to higher running costs and reduced performance, meaning you’ll get less hot water but spend more of your hard-earned in the process. Older systems in particular lose efficiency over time.

If your system is using more energy but delivering lukewarm results, it’s a clear sign that something isn’t working properly. Upgrading to a more energy-efficient unit could save you money long term.

Always Use a Licensed Plumber for Hot Water Services

When it comes to repairing or replacing your hot water system, always use a licensed plumber. It’s not just a recommendation, it’s a legal requirement in Australia.

Hot water services involve gas lines, electrical components, pressure valves and plumbing connections, and each needs specialist knowledge for safe handling. A professional plumber can diagnose the issue and ensure the work meets Australian standards.

Attempting DIY repairs on a failing hot water system can lead to further damage, safety risks and void warranties. For peace of mind and long-term savings, it’s best to call in an expert plumber from the start.

Don’t Let a Failing Hot Water System Catch You Off Guard

Being aware of the signs your hot water system is failing can save you from cold showers, costly repairs and long-term water damage.

From unusual noises and rusty water to rising energy bills, these are your system’s way of calling for help. Most hot water systems don’t fail overnight; they give you plenty of warning if you know what to look for. Acting early and calling a licensed plumber can make all the difference.

Whether it’s a simple fix or time for a new hot water system, prompt action is always the smartest move.

Please note: Thanks for reading our blog “7 Warning Signs Your Hot Water System Is Failing”. This information is provided for advice purposes only. Regulations differ from state to state, so please consult your local authorities or an industry professional before proceeding with any work. See our Terms & Conditions here.