The Alpha 1.035365 Domestic Hot Water (DHW) Flow Switch is a genuine replacement component designed to detect water flow and signal the boiler to fire for hot water demand. This switch ensures your Alpha Intec boiler responds correctly when a tap is opened, providing consistent and reliable hot water delivery.

A faulty flow switch can cause symptoms such as no hot water, intermittent firing, or delayed hot water response—making timely replacement essential to restore proper operation.

Key Features

• Genuine Alpha DHW flow switch

• Detects water movement to trigger hot water mode

• Ensures fast and reliable boiler response

• Helps resolve no-hot-water and intermittent supply issues

• Direct-fit replacement for easy installation

Compatible With

This DHW flow switch is suitable for:

• Alpha Intec boilers

Always verify the part number (1.035365) with your boiler documentation to ensure correct compatibility.