Ideal Magnetic Flow Switch Filter Kit 174461

The Ideal 174461 is a magnetic flow switch supplied with a filter kit. It is a safety device containing an in-built sensor that sits in the pipework serving both the heating circuit and the domestic hot water circuit. When the pump runs, the switch detects the movement of water and signals that flow is present back to the appliance controls.

• The pump runs but the appliance does not register flow and fails to fire
• Lockout or a flow-related fault code appears shortly after the pump starts
• Heating demand is met intermittently, with the burner dropping out during a call for heat
• Domestic hot water runs cool or fails to trigger the burner despite a tap being open
• The switch reads no change in state when flow through the pipework is confirmed by hand

• Check the appliance model and GC number against the compatibility list before ordering
• Confirm the part number on the existing component matches 174461 or 1780456
• Inspect the pipework connections and seals around the switch housing while the system is drained
• Confirm the appliance is isolated and drained before removing the flow switch