Before arranging a hot water repair, a few safe observations can help explain what has changed.

Check what has changed

Is there no hot water at all, reduced capacity, inconsistent temperature, a leak or an unusual noise?

Look for visible signs

Check around the system for water, corrosion or a tripped safety switch. Do not remove covers or attempt electrical repairs.

The system type, approximate age, fault symptoms and property location can help determine the most useful next step.