{"product_id":"braemar-modulating-control-board-thm5-ng-sy640365","title":"Braemar Modulating Control Board (MCB) THM5 NG","description":"\u003cdiv style=\"text-align: left;\"\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003eThis Braemar Modulating Control Board (MCB) is a direct replacement part for Braemar THM5 Natural Gas (NG) ducted heaters, vital for maintaining consistent indoor temperatures. In Australia's varied climate, having your heating system running right is crucial for comfort and efficiency, especially during those colder mornings.\u003c\/p\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003eAnyone who's done a few heater services knows that chasing intermittent faults on a dying board can waste a lot of time on site. Swapping in a new, genuine MCB often sorts it out fast.\u003c\/p\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003e\u003cstrong\u003eBest for:\u003c\/strong\u003e HVAC service technicians, gas fitters, and owners of Braemar THM5 NG ducted gas heaters requiring a genuine replacement part.\u003c\/p\u003e\n\u003ch2 style=\"color: #007acc; border-bottom: 2px solid #f0f0f0; padding-bottom: 8px; margin-top: 35px;\"\u003eCompatibility\u003c\/h2\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003eThis control board is specifically designed for Braemar THM5 Natural Gas (NG) ducted heating systems. It's a direct OEM replacement to ensure correct modulation and heater function.\u003c\/p\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003eIf you're running a different model, check fittings and specs before ordering.\u003c\/p\u003e\n\u003ch2 style=\"color: #007acc; border-bottom: 2px solid #f0f0f0; padding-bottom: 8px; margin-top: 35px;\"\u003eFeatures\u003c\/h2\u003e\n\u003cul style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003e\n\u003cli\u003eGenuine Braemar part, ensuring perfect fit and function.\u003c\/li\u003e\n\u003cli\u003eModulating Control Board (MCB) for precise gas valve operation.\u003c\/li\u003e\n\u003cli\u003eRestores accurate temperature control and system efficiency.\u003c\/li\u003e\n\u003cli\u003eDesigned for Natural Gas (NG) ducted heater applications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"color: #007acc; border-bottom: 2px solid #f0f0f0; padding-bottom: 8px; margin-top: 35px;\"\u003eWhat's in the Box\u003c\/h2\u003e\n\u003cul style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003e\n\u003cli\u003e1 x Braemar Modulating Control Board (MCB) THM5 NG (SY640365)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"color: #007acc; border-bottom: 2px solid #f0f0f0; padding-bottom: 8px; margin-top: 35px;\"\u003eUsing It on the Job\u003c\/h2\u003e\n\u003col style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003e\n\u003cli\u003e\u003cp style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003e\u003cstrong\u003eSafety First:\u003c\/strong\u003e Before starting any work on a gas appliance, ensure the power is isolated at the main switchboard and the gas supply is shut off. Tag out circuits as required.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003e\u003cstrong\u003eAccess the Heater:\u003c\/strong\u003e Carefully open the heater unit to access the existing control board. Document wiring connections with photos before disconnecting.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003e\u003cstrong\u003eReplace the Board:\u003c\/strong\u003e Disconnect all wiring from the old MCB, remove it, and install the new Braemar SY640365 board. Ensure all connections are secure and correctly re-attached.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003e\u003cstrong\u003eTest Operation:\u003c\/strong\u003e Restore gas and power, then cycle the heater through its functions. Check for proper ignition, flame sensing, and modulation through several heating cycles.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003e\u003cstrong\u003eCommissioning:\u003c\/strong\u003e Confirm all safety devices operate correctly and that the heater is functioning to manufacturer specifications. Complete any required gas appliance service records.\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2 style=\"color: #007acc; border-bottom: 2px solid #f0f0f0; padding-bottom: 8px; margin-top: 35px;\"\u003eLimitations \u0026amp; Safety Notes\u003c\/h2\u003e\n\u003cul style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003e\n\u003cli\u003eInstallation and servicing of gas appliances must be performed by a licensed gas fitter in accordance with Australian standards.\u003c\/li\u003e\n\u003cli\u003eEnsure the power and gas supply are completely isolated before attempting any work on the appliance.\u003c\/li\u003e\n\u003cli\u003eThis board is specifically for Natural Gas (NG) systems. Do not use with LPG unless the heater is specifically converted and approved for it.\u003c\/li\u003e\n\u003cli\u003eOnly compatible with Braemar THM5 ducted gas heater models.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"color: #007acc; border-bottom: 2px solid #f0f0f0; padding-bottom: 8px; margin-top: 35px;\"\u003eTradie Pro Tip\u003c\/h2\u003e\n\u003cblockquote style=\"border-left: 4px solid #007acc; background-color: #f9f9f9; font-style: italic; padding: 15px; margin: 20px 0;\"\u003e\nBefore condemning the old board, always double-check all associated sensors, ignitors, and wiring for corrosion or loose connections. Sometimes it's a cheaper fix than a full board swap, but if the fault points to the MCB, a genuine replacement is the way to go.\n\u003c\/blockquote\u003e\n\u003ch2 style=\"color: #007acc; border-bottom: 2px solid #f0f0f0; padding-bottom: 8px; margin-top: 35px;\"\u003ePair With\u003c\/h2\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003ePair with a new ignitor or flame sensor if those components are also due for replacement, and ensure you have a reliable digital manometer for checking gas pressures.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Automated FAQ Schema --\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What Braemar heater models is this control board compatible with?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"This Braemar Modulating Control Board (MCB) is specifically designed for Braemar THM5 Natural Gas (NG) ducted heating systems. It serves as a direct OEM replacement for that model.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is this a genuine Braemar replacement part?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes, this is a genuine Braemar part (Seeley PN: 640365) ensuring full compatibility and reliable operation with your THM5 NG ducted gas heater.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Do I need a licence to install this control board?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes, any work involving gas appliances, including the replacement of control boards, must be carried out by a currently licensed gas fitter in accordance with all relevant Australian regulations and standards.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"Braemar","offers":[{"title":"Default Title","offer_id":43608041095227,"sku":"SY640365","price":298.48,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0316\/7787\/4235\/files\/699_SY640365_1W.png?v=1781160624","url":"https:\/\/www.hvacshop.com.au\/products\/braemar-modulating-control-board-thm5-ng-sy640365","provider":"HVAC Supply Shop","version":"1.0","type":"link"}