Main Flow Switch Diaphragm 571547

Ariston Diaphragm 571547

Replaced 65100990

For use with the following Ariston boilers:

Ariston GENUS 27 BFFI UK
and Ariston GENUS 27 BFFI PLUS
with Ariston GENUS 23 MFFI UK
plus Ariston GENUS 27 MFFI UK
fits Ariston GENUS 27 RFFI SYSTEM
and Ariston GENUS 30 MFFI UK
with Ariston MICROGENUS 23 MFFI
plus Ariston MICROGENUS 27 MFFI

A flow switch diaphragm for use in the diverter valve or hydraulic section .

A directional water device in combi boilers, a diverter valve directs hot water into either a heating system or a hot water system.

This feature means that combis are able to provide both heating and hot water without the need for a storage cylinder.

This diaphragm is designed to move a pin to operate a microswitch that sends a message to the boiler’s PCB (printed circuit board).