Hot Water System Issues: Who Should You Call?

 
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Has your hot water system stopped working properly? Hot water systems involve both plumbing and electrical work, so you may be wondering whether you need to call a plumber or an electrician to fix the system. This article will provide you with helpful information regarding hot water system repairs

What you should check first

It is important to check the circuit breaker and pressure relief valve first. If your circuit breaker has tripped, check whether you can turn it back on before calling a professional. Test your pressure relief valve to see if you can make water pass through the overflow pipe. If no water flows through, your water tank may just need to be filled up. If you continue to have problems with your thermostat or circuit breaker, contact a qualified person for assistance.

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What will an electrician fix?

Electricians will deal with all of the electrical components of the system. If your circuit breaker will not stay on, then an electrician is responsible for fixing this. Also if your water is only slightly warm, the thermostat, heating element, or off-peak switch in your electric hot water system may be the cause of this and will need to be fixed by an electrician.

For solar hot water systems, the booster can also sometimes be the cause of temperature issues. Furthermore, with the massive surge in energy-efficient heat pump installations across Queensland, complex electrical faults on compressor control boards require the expertise of a specialised domestic electrician to accurately diagnose and restore performance.

When will you need to call a plumber?

If you notice a leak or signs of leakage like mould or damp patches, a plumber will be required to fix this problem. Whilst also being capable of causing extensive water damage, leaks can reduce the amount of water flowing through a hot water system, which will impact the output temperature of the water and the water pressure. A damaged pressure valve is also another common cause of a lack of water pressure in a hot water system and must be fixed by a plumber.

When your hot water system is expelling discoloured water, it is a sign that the sacrificial anode has failed and the inner water tank is rusted, meaning the unit may need to be replaced. According to the Queensland Building and Construction Commission (QBCC), hot water system replacements are classified as regulated notifiable work, meaning they must be formally logged by a licensed professional to protect property insurance.

If you are experiencing an issue with low water temperature from your hot water system, the tempering valve may be the cause of this. According to hot water guidelines from energy.gov.au, water must be stored at a minimum of 60°C to halt microbial growth but delivered to taps at a maximum of 50°C to prevent scalding, making accurate valve alignment vital.

In gas hot water systems, low temperatures can be the result of a broken gas heater, which will require a qualified gas fitter to repair.

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Our master plumbers are available 365 days a year for plumbing services across SEQLD. Offering you peace of mind in stressful circumstances, you can trust that a Fallon Solutions plumber will be there promptly when you need them.

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Thinking of switching to a modern hot water system?

We aim to provide you with fast, reliable service with minimal impact to your day. If your system is breaking down, our dual-trade plumbing and electrical network can manage a clean transition to a brand-new setup. Contact Fallon Solutions on 1300 054 488 or complete our specific hot water installation and repair enquiry here.

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JILL HOTTES
25 September 2026
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Many thanks to the Fallon team for electrical work carried out on our premises. Jarryd for providing a detailed quote and the team headed by Dylan and Kyle on day one and Dylan assisted by two other electricians on day 2. They worked in a most professional, quiet, courteous and timely manner. They were also very friendly and are a great asset to the Fallon Solutions team.
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Jayne Bright
25 September 2026
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Great service from Chris our tradesman today, got our washing machine going again so saved us replacing it
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Marieanne Jacobi
25 September 2026
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Had Damien .P come out from fallon solutions today as I had lost power from yesterday afternoon. He was quick and efficient and explained everything every step of the way to help get my power back on. One of the BEST! tradies I've had come out by far. He's colleague Simone. W from the office was very helpful and patient with fixing up the job details and booking in works to fix my switchboard up properly. Thank you team.
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Emma Lloyd
25 September 2026
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Jason was fast and efficient when fixing our oven!
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Kevin Sinclair
25 September 2026
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Jason installed the oven and it looks great. Looking forward to cooking a roast. Great service, cleaned up afterwards, and was very helpful.
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helen farrelly
24 September 2026
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Great service from Damien. Even fixed my broken garage door for free
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Hugo Skepper
24 September 2026
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Jason came and checked and fixed the dishwasher - did a fantastic and efficient job. Highly recommended him!
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Li H
24 September 2026
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Great service, we highly recommend using Fallon. Jeff and Nick were very polite, and we appreciated their care and attention to detail.
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Lisa Addison
24 September 2026
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Jason washing machine
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Amanda Catto
24 September 2026
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We had 3 split systems installed at our place, it was a big job, but the guys knew exactly what they were doing, they were professional, talked you through the process before starting, the job was completed to a high standard with all outside cabling was covered and looking neat against the house. They cleaned up after themselves. We used Fallons 10 years ago for another job, they may be a little more expensive than other companies but they offer guarantees on all their work and have been around for a long time. They offer servicing on all their equipment and complimentary filter cleans through their membership program.

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