Support for customers who already have a WAHU system

If something is not working, write to us below or call us: you will speak to a technician of the IM Maioli Impianti Group, not a call centre. The more you tell us when you call or write, the fewer wasted trips for whoever comes to you.

Request support Call +39 388 996 3253 · Write on WhatsApp

Before you write: three thirty-second checks

• No water from any outlet? Check that the mains water tap feeding the unit is open, and that the plug and the switch are on.
• Still water works but sparkling does not? It is almost always an empty CO₂ cylinder. If you have a spare cylinder you can replace it; if not, tell us “the sparkling water does not work”.
• Water comes out more slowly than before? The filter is often close to the end of its capacity: it is a replacement to schedule, not a fault.

Do not open the unit or disconnect the pipes: if it is leaking, close the supply tap and write to us.

What is included, and what is not

• If the system is rented, restoring operation is included in the fee. CO₂ refills, spare parts other than the filtration system and damage from improper use are extra. Rental terms
• If you bought it, work on a defect is covered by the warranty under the terms of sale; outside the warranty the current price list applies, and we tell you before we set off.
• If you have a scheduled maintenance contract, see below.

Do you have a system from another brand? Write to us anyway: we will assess whether we can take it into maintenance.

Filters and scheduled maintenance

At every scheduled visit we sanitize the system, check that it works, read the litre counter and replace the filter when it approaches the capacity declared by the manufacturer — in litres or in time — and in any case at least once a year. If there is a CO₂ cylinder, we check whether it needs refilling or replacing.

• Rental (businesses only): scheduled maintenance is included in the fee, at the agreed frequency.
• Purchase for the home: filters and periodic visits are added with a scheduled maintenance contract, which we recommend at least once a year.
• Purchase for businesses: scheduled maintenance is agreed with a dedicated contract.

How often the filter is changed, model by model

These are the intervals in our catalogue. The visit frequency is set in the contract — yearly, every six months or every four months — and the litre counter tells us if a change is needed sooner.

At every scheduled visit, besides the filter: sanitization of the system, a functional check, reading the litre counter and checking the parameters of the dispensed water (dry residue, pH, electrical conductivity and temperature), with a service report signed by the technician.