{"product_id":"vail-0020278881-pcb-hmu","title":"VAILLANT 0020278881 PCB HMU","description":"\u003cp data-end=\"197\" data-start=\"138\"\u003e\u003cstrong data-end=\"197\" data-start=\"138\"\u003eVaillant 0020278881 PCB HMU (Hydraulic Management Unit)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-end=\"584\" data-start=\"199\"\u003eThe \u003cstrong data-end=\"226\" data-start=\"203\"\u003eVaillant 0020278881\u003c\/strong\u003e is a genuine OEM \u003cstrong data-end=\"305\" data-start=\"244\"\u003eHMU PCB (Hydraulic Management Unit printed circuit board)\u003c\/strong\u003e designed to control and coordinate the hydraulic functions within compatible Vaillant heating systems. This essential electronic component manages pump operation, sensors, valves, safety checks, and overall system communication to ensure safe, stable, and efficient performance.\u003c\/p\u003e\n\u003cp data-end=\"834\" data-start=\"586\"\u003eManufactured to Vaillant’s strict engineering standards, this PCB is the ideal replacement for restoring reliability when experiencing issues such as pump control faults, communication errors, irregular system behaviour, or HMU-related error codes.\u003c\/p\u003e\n\u003cp data-end=\"855\" data-start=\"836\"\u003e\u003cstrong data-end=\"853\" data-start=\"836\"\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"1288\" data-start=\"856\"\u003e\n\u003cli data-end=\"888\" data-start=\"856\"\u003e\n\u003cp data-end=\"888\" data-start=\"858\"\u003e\u003cstrong data-end=\"886\" data-start=\"858\"\u003eGenuine Vaillant HMU PCB\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"957\" data-start=\"889\"\u003e\n\u003cp data-end=\"957\" data-start=\"891\"\u003eControls hydraulic management functions within the boiler\/system\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1038\" data-start=\"958\"\u003e\n\u003cp data-end=\"1038\" data-start=\"960\"\u003eEnsures accurate communication between sensors, pumps, and safety components\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1115\" data-start=\"1039\"\u003e\n\u003cp data-end=\"1115\" data-start=\"1041\"\u003eHelps resolve PCB faults, system lockouts, or operational irregularities\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1169\" data-start=\"1116\"\u003e\n\u003cp data-end=\"1169\" data-start=\"1118\"\u003eHigh-quality, durable OEM electronic construction\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1231\" data-start=\"1170\"\u003e\n\u003cp data-end=\"1231\" data-start=\"1172\"\u003eDirect-fit replacement for compatible Vaillant appliances\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1288\" data-start=\"1232\"\u003e\n\u003cp data-end=\"1288\" data-start=\"1234\"\u003eSuitable for professional installation and servicing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"1293\" data-start=\"1290\"\u003e\n\u003ch3 data-end=\"1316\" data-start=\"1295\"\u003e\u003cstrong data-end=\"1316\" data-start=\"1299\"\u003eCompatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"1422\" data-start=\"1317\"\u003eThe \u003cstrong data-end=\"1352\" data-start=\"1321\"\u003eVaillant 0020278881 PCB HMU\u003c\/strong\u003e is compatible with selected Vaillant appliances, typically including:\u003c\/p\u003e\n\u003cul data-end=\"1621\" data-start=\"1424\"\u003e\n\u003cli data-end=\"1458\" data-start=\"1424\"\u003e\n\u003cp data-end=\"1458\" data-start=\"1426\"\u003eecoTEC range (model dependent)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1550\" data-start=\"1459\"\u003e\n\u003cp data-end=\"1550\" data-start=\"1461\"\u003eecoFIT and other Vaillant systems that list \u003cstrong data-end=\"1519\" data-start=\"1505\"\u003e0020278881\u003c\/strong\u003e in their parts documentation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1621\" data-start=\"1551\"\u003e\n\u003cp data-end=\"1621\" data-start=\"1553\"\u003eHeat-only, system, or combi models where this HMU PCB is specified\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"1733\" data-start=\"1623\"\u003e\u003cem data-end=\"1733\" data-start=\"1623\"\u003eEngineers should confirm exact compatibility using the boiler’s model-specific parts list or service manual.\u003c\/em\u003e\u003c\/p\u003e","brand":"Vaillant","offers":[{"title":"Default Title","offer_id":56695918297433,"sku":null,"price":260.78,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0982\/9738\/1209\/files\/1388612.jpg?v=1764069285","url":"https:\/\/plumbpartsxpressshop.com\/products\/vail-0020278881-pcb-hmu","provider":"Plumbparts xpress","version":"1.0","type":"link"}