Hot Water Not Working? A Brisbane Troubleshooting Checklist
No hot water at 6am is one of the fastest ways to ruin a Brisbane morning. Before you call a plumber, walk through these checks — half the time you'll find a simple fix, and if not, you'll give us the exact diagnosis over the phone.
Electric Storage Systems
Check your switchboard for a tripped hot water circuit breaker. If it trips again after reset, the element or thermostat has likely failed. Look for water pooling under the unit — that's a tank leak and it's replacement time.
Gas Continuous Flow
Confirm gas supply first — is the cooktop working? If not, check the meter isolation valve. Next, look at the pilot indicator or fault code on the unit. Rinnai, Rheem and Bosch each publish fault code charts on the side panel.
Solar Systems
After several overcast Brisbane days the electric booster should kick in automatically. If it isn't, check the booster switch (often inside the laundry or garage) is set to 'on'. A frozen sensor line up on the roof is another common cause after cold snaps.
When It's Time to Call
Any water leaking from the unit, gas smell, discoloured hot water, or a system older than 10 years should be seen by a licensed plumber. Call VM Plumbing & Gas on 0447 926 993.
Frequently Asked Questions
Why is my hot water lukewarm?
Usually a failing thermostat, sediment buildup in the tank, or a mixing valve that has drifted. Have it checked before the element burns out.
How long should hot water last in a shower?
A 250L storage tank should give 2–3 hot showers back-to-back. Less than that means your element or thermostat is degrading.
Is a hot water leak an emergency?
Yes. A leaking tank rarely fails safely — it can flood, or the element can short. Isolate power and water and call us.