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A sudden water heater failure in Tempe.
When a Tempe homeowner recently called us in a panic, they weren’t exaggerating. Their water heater wasn’t just leaking — the entire unit was leaning to one side. After receiving photos, we knew this was an urgent case and sent out a team immediately.
The bottom of the tank had pushed outwards due to extreme pressure inside the cylinder. Unfortunately, when this happens, the system is beyond repair and must be replaced for safety reasons.
This type of breakdown is a strong reminder of why regular servicing is so important. In particular, the temperature and pressure relief (TPR) valve is designed to release excess pressure before it reaches dangerous levels. If the valve is faulty or hasn’t been checked for years, the tank can be placed under severe strain and, in rare cases, rupture.
Why water heater tanks over-pressurise.
There are a few common causes behind this type of failure:
- A blocked or faulty TPR valve that can’t release pressure
- A thermostat fault that overheats the water, increasing volume and pressure
- High incoming water pressure that isn’t properly regulated
- Sediment build-up or poor maintenance that stops safety features working as they should
Routine servicing picks up on these issues early, reducing the risk of major failures and helping your system run more efficiently.
Replacing the failed system.
With the old Rheem tank clearly beyond repair, the only solution was a new installation. We spoke with the customer about their household’s hot water needs and budget, and together we decided on a Rheem 160-litre twin element electric hot water system.
A replacement unit was delivered within the hour and installed the same day. By the evening, the family was back to enjoying reliable hot water without the stress of wondering if their system was safe.
Why regular water heater servicing matters.
A professional service by the team at Cheapa Hot Water Inner West every five years keeps your hot water system in top condition and helps prevent dangerous or costly breakdowns. During a service, worn parts can be replaced before they fail, efficiency is improved, and the life of the tank is extended. A standard check takes less than an hour but can add years to your system’s lifespan.
To maintain your warranty and keep your system safe, always use a licensed hot water technician for servicing and repairs.
Other hot water emergencies to watch out for
A ruptured tank is dramatic, but there are other warning signs homeowners should never ignore, including:
- A relief valve that won’t stop running
- Water leaking from the base of the unit
- Discoloured or rusty water from taps
- Unusual banging or rumbling noises
- Water that is too hot or not hot enough
- Gas smells eminating from gas hot water systems
Each of these could indicate a serious problem and should be checked promptly by a professional.
Quick DIY checks to reduce risk
Between professional services, a few simple checks can help you spot early warning signs:
- Look for leaks – Inspect around the tank and pipes regularly.
- Test the TPR valve – Lift the lever gently to confirm it discharges water and moves freely.
- Check water temperature – Note if it feels cooler than usual or overheats.
- Inspect the base – Keep weeds, soil, and ants away to prevent corrosion and electrical problems.
If you’re unsure or spot a problem, call us for peace of mind. We’re here to help – and are usually only a short drive away.
Local emergency hot water help
If your system is leaking, under pressure, or has already failed, don’t wait until it becomes a bigger hazard. Our fully stocked trucks are on the road daily with replacement tanks and thousands of spare parts, ready to restore your hot water quickly.
Call our friendly hot water specialists today and get back to enjoying safe, trouble-free hot water.