{"product_id":"potterton-promax-30-he-30-he-plus-system-boiler-pcb-5122457","title":"POTTERTON PROMAX 30 HE \u0026 30 HE PLUS SYSTEM BOILER PCB 5122457","description":"\u003ch1\u003e\u003cspan\u003ePotterton Promax 30 HE A \u0026amp; 30 HE Plus System Boiler PCB 5122457\u003c\/span\u003e\u003c\/h1\u003e\n\u003ch2\u003e\u003cspan\u003eProduct Overview\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ePotterton Boiler Printed Circuit Board (PCB) 5122457\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is an electronic control component designed for use within selected Potterton heating systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe PCB acts as the main electronic control unit of the boiler. It \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ereceives and processes signals from connected sensors, thermostats, switches, and safety devices\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, helping to manage communication between internal components and supporting correct appliance operation.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eAs an essential electronic component, a correctly functioning PCB helps maintain reliable boiler operation by controlling and coordinating important boiler functions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eℹ️ \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eProduct Condition Options:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis part may be available in \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eNew or Refurbished\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e condition. Please check the available options from the dropdown menu.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eTechnical Insight \u0026amp; Common Failure Symptoms\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe boiler PCB works as the electronic control centre of the appliance, receiving information from connected components and coordinating various boiler operations. Over time, electrical faults, component wear, power surges, or moisture exposure can affect PCB performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eTypical symptoms linked to a faulty PCB include:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eBoiler failing to start or operate correctly\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIntermittent boiler shutdowns or lockouts\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFault codes or warning lights related to electronic control problems\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLoss of control over heating or hot water operation\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIncorrect operation of connected boiler components\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUnstable or inconsistent boiler performance\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eReplacing a faulty PCB may help restore correct electronic communication and support normal boiler operation.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eYou can usually find PCB troubleshooting information in:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eThe Potterton Support Centre\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eThe Potterton Spare Parts Catalogue\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eYour boiler installation and servicing manual\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBoiler fault code documentation\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eCompatibility\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eManufacturer Part Number (MPN): 5122457\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis part is designed for selected models within the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ePotterton Promax HE\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e range.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003ePlease strictly verify the manufacturer part number \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e5122457\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e against your boiler's technical manual, exploded parts diagram, or existing component before ordering to guarantee correct fitment.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eSafety Advice\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eBoiler parts involve gas, electricity, and heating system components. Installation and servicing must be carried out by a Gas Safe registered engineer in accordance with current regulations and manufacturer instructions.\u003c\/em\u003e\u003c\/p\u003e","brand":"Potterton","offers":[{"title":"Refurbished \/ Direct Sale","offer_id":44344225103975,"sku":"N9561-1","price":49.8,"currency_code":"GBP","in_stock":false},{"title":"Refurbished \/ Repair Service","offer_id":44344225136743,"sku":"N9561-2","price":34.8,"currency_code":"GBP","in_stock":true},{"title":"Refurbished \/ Advance Replacement","offer_id":44344225169511,"sku":"N9561-3","price":64.8,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0615\/0923\/8887\/files\/edited-photo-2026-08-03T090712.480.jpg?v=1785751124","url":"https:\/\/nationalboilerspares.co.uk\/products\/potterton-promax-30-he-30-he-plus-system-boiler-pcb-5122457","provider":"National Boiler Spares","version":"1.0","type":"link"}