Vaillant part is located around the flow switch section. The flow switch acts as a safety mechanism. It is a switch with an in-built sensor that sits in the pipework for both the heating and domestic hot water systems. When the pump is activated, the flow switches sense this movement and feed the information back to the printed circuit board, allowing the ignition sequence to progress.

Brand Name	Vaillant
Colour	None
Material	None
Manufacturer Model No	194830
Wear Type	None
Type	Sensor
Certifications Met	None
Country of Origin	None
Protects From	None
Waterproof	None
Number of Pockets	None
Waist Size	aa54cd12gs
Compatible With	ecoMAX 828/2 E and VUW 286/2-C
Supplier Part Number	194830