
If you have just had an Ariston Nuos installed, book the official commissioning. It is free for you: Ariston pays for it. In 30–45 minutes, an official technician checks the installation has been done properly, sets the unit up and shows you how it works.
Why it is worth doing
The warranty covers faults in the unit, not installation faults. If the Nuos breaks down because of something that was installed wrongly, the warranty does not cover that repair and you pay for it, even if the unit is new. Commissioning finds those faults on day one, when they are easy and cheap to fix.
During commissioning we also register the product, which extends Ariston’s warranty by one year, and it is the first step to extending it up to 5 years (see how the Nuos warranty works).
What we check
- Position and clearances: that the distances in the manual are respected.
- Water connections: properly made and leak-free.
- Dielectric (anti-electrolysis) unions: that they are fitted. Without them, the tank corrodes sooner.
- Safety valve or safety group: fitted and working.
- Air: that the intake and exhaust ducts are properly made or, if it is not ducted, that the room has enough air volume.
- Condensate: that the drain is piped away and has a trap. Without a trap, the refrigeration side of the unit corrodes.

Safety group on the cold water inlet: compulsory, and we check it at every commissioning.

The unit itself has a label: the dielectric union is compulsory on the hot water outlet.

What happens when condensate is not drained properly: corrosion on the refrigeration side of the unit.
What we leave done
- The unit set up to save energy: GREEN mode and 55 °C, with the time and schedule adjusted to your home (see how to set it up and which mode to use).
- Connected to wifi and the Ariston NET app, if you want.
- The product registered in your name.
- We show you how to use it, what maintenance it needs and how the warranty works.
How to book it
- With the form on this page: choose “Ariston commissioning” and leave your details and the unit’s.
- By WhatsApp or phone, whichever you prefer.
- You can also request it from Ariston; if you are in our area, we will be the ones who do it.
We cover the provinces of Alicante and Murcia, and we speak English.
Book the commissioning Book it on WhatsApp
In the form, choose “Ariston commissioning” under Service. We speak English.
Frequently asked questions
How much does commissioning the Nuos cost?
Nothing. Ariston pays for the commissioning of the Nuos.
Is it compulsory for the warranty?
It is not compulsory, but without it nobody has checked the installation. If there is later a breakdown caused by an installation fault, the warranty does not cover it and the repair has to be paid for.
Another installer fitted it. Can you still do it?
Yes. We do it as the official Ariston service centre, whoever installed the unit.
How long does it take?
Between 30 and 45 minutes.


