Brand guide
All Ariston water heater guides
Choose the symptom or code that matches your unit. Confirm the exact model and control generation against the rating plate before following model-specific instructions.
Ariston Leaking From the Bottom
Water under an Ariston Andris, Velis, or Pro1 can come from the drain, T&P, a bottom fitting, or the tank itself. How to find the wet part.
Leaks and floodingAriston Leaking From the Front Panel
Water at an Ariston front cover comes from behind it: an element gasket, thermostat pocket, or the tank. How to tell a gasket from a failed tank.
Leaks and floodingAriston Pressure Relief Valve Leaking
An Ariston T&P valve that drips is reacting to pressure or temperature, often thermal expansion. Why it happens and why it must never be capped.
ElectricAriston Water Heater Reset Button
The Ariston reset is a high-limit (ECO) behind the front cover. How to press it safely on a full tank, and what a repeat trip means.
Leaks and floodingAriston Water Heater Troubleshooting
An Ariston that is cold, leaking, or showing a fault needs a power, flow, sensor, or tank check. Photograph it.
No hot waterAriston Water Heater With No Hot Water
A cold Ariston usually has no power, a tripped ECO, a failed element, or a thermostat fault. Checks for Andris, Velis, Pro1, and tankless models.