Ariston Expansion Vessel & Non-Return Valve KIT A - 406801

The expansion vessel prevents excessive pressure buildup in the hot water system by accommodating the increased volume of water when heated.

The non-return valve prevents hot water from flowing back into the cold water supply, ensuring water safety.

If you have experience with plumbing, you may be able to install it yourself. However, it's recommended to consult a professional plumber.

Immediately shut off the water supply to the water heater and contact a qualified plumber to assess and repair the leak.

It is recommended to inspect the components at least once a year or as part of your regular water heater maintenance schedule.

No, this kit is exclusively designed for use with Ariston Andris R water heaters.

The expansion vessel has a capacity of 2 liters.

Check the expansion vessel for proper function. If the pressure issues persist, consult a plumber.

The expansion vessel might be malfunctioning. Inspect the kit for leaks or damage. If the noise continues, seek professional assistance.

Inspect the non-return valve for damage or blockage. Replace if necessary. If issues continue, seek professional advice.