{"product_id":"glowworm-swiftflow-70e-80e-100e-boiler-flow-switch-2000800136-800136","title":"GLOWWORM SWIFTFLOW 70E 80E 100E BOILER FLOW SWITCH 2000800136 800136","description":"\u003ch1\u003e\u003cspan\u003eGlowworm Swiftflow 70E 80E 100E Boiler Flow Switch 2000800136\u003c\/span\u003e\u003c\/h1\u003e\n\u003ch2\u003e\u003cspan\u003eProduct Overview\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eGlowworm Boiler Flow Switch (Part Number: 2000800136)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a domestic hot water flow-detection component designed for selected \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eGlowworm Swiftflow\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e combination boilers.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe flow switch forms part of the boiler's domestic hot water system, detecting water flow when a hot water tap is opened and providing a signal to the boiler's control system.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis allows the appliance to recognise domestic hot water demand and initiate the appropriate operating sequence.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCorrect flow switch operation is important for reliable hot water activation and normal boiler performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eℹ️ Product Condition Options:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis part may be available in \u003c\/span\u003e\u003cem\u003e\u003cspan\u003eNew\u003c\/span\u003e\u003c\/em\u003e\u003cspan\u003e or \u003c\/span\u003e\u003cem\u003e\u003cspan\u003eRefurbished\u003c\/span\u003e\u003c\/em\u003e\u003cspan\u003e condition. Please select your desired option from the dropdown menu above. Refurbished flow switches should be professionally inspected and tested to confirm correct operation and suitability for installation.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eTechnical Insight \u0026amp; Common Failure Symptoms\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe domestic hot water flow switch responds to water movement through the boiler's hot water circuit. Its switching function allows the electronic controls to recognise when domestic hot water is required.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eMechanical deterioration, internal restrictions, damaged electrical connections or faults affecting the switching mechanism may interfere with correct flow detection.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePossible symptoms that may indicate a flow switch or associated component problem include:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eBoiler failing to activate when a hot water tap is opened.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eIntermittent domestic hot water operation.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eBoiler failing to recognise hot water demand.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eHot water operation starting or stopping unexpectedly.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eInconsistent response to changes in water flow.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eFlow switch failing to operate correctly during professional testing.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eVisible damage or deterioration affecting the switch or its connections.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eThese symptoms do \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003enot necessarily confirm a faulty flow switch\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, as similar problems may result from restricted water flow, blocked inlet filters, electrical wiring or other boiler controls. Correct professional diagnosis should be carried out before replacing the component.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eSafety Advice\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003e\u003cspan\u003eBoiler flow switches and associated hydraulic components should only be inspected, removed or installed by a suitably qualified heating engineer. Where work involves internal gas appliance systems, an appropriately qualified Gas Safe registered engineer must carry out the work.\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cspan\u003eAlways isolate the appliance's electrical supply and domestic water inlet before carrying out any work. Allow the system to cool and safely release residual water pressure before removing the component.\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cspan\u003eFollow the manufacturer's installation and servicing instructions. Ensure the flow switch is correctly positioned, with the flow direction matching the manufacturer's requirements, and that all necessary seals and electrical connections are correctly fitted.\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cspan\u003eAppropriate leakage, electrical safety, domestic hot water operation and functional checks must be completed before returning the boiler to service.\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e","brand":"GLOWWORM","offers":[{"title":"New Other","offer_id":51566731264103,"sku":"N6896","price":63.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0615\/0923\/8887\/files\/s-l1600_58.webp?v=1794399675","url":"https:\/\/nationalboilerspares.co.uk\/products\/glowworm-swiftflow-70e-80e-100e-boiler-flow-switch-2000800136-800136","provider":"National Boiler Spares","version":"1.0","type":"link"}