First determine whether the problem affects every hot tap or only one outlet. If one tap is affected, the issue may be local to that fixture rather than the hot-water system.
Check what has changed
- Is the water completely cold, lukewarm or running out sooner than usual?
- Did the problem begin suddenly or gradually?
- Is there visible water around the tank, valves or pipework?
- Are there unusual sounds, odours or discoloured water?
- Has household demand recently increased?
Look at the system—do not dismantle it
Note the brand, model and approximate age if those details are visible. A clear photograph of the unit and its label can help identify the system. Do not remove covers or touch wiring, gas components or hot pipework.
Gas smells, sparking, smoke, significant flooding or exposed electrical components require immediate professional attention. Keep people away and isolate services only when you know it is safe.
Useful details for a repair enquiry
Include your suburb, system type, household size, the symptoms, when they started and whether water is leaking. This helps the responding provider decide what information or equipment may be needed.