Beam Vacuum & Ventilation Service Whilst very little maintenance is required for your Beam vacuum/mechanical ventilation system, we have provided some support documents and videos for common procedures. We are of course happy to speak to you directly to help with any issues. We offer an after-sales service through our team of professional engineers and national accredited distributor network, all of whom have been fully trained to service and maintain your Beam Vacuum System and/or mechanical ventilation system. Beam Vacuum System Loss of Suction (includes information on Poor Suction, Vacpan not working, obstruction in central vacuum cleaning hose) Central Vacuum Inlet Replacement Procedure Filter Maintenance (including how to manually clean the vacuum filter, and how to change the vacuum filter) Replacing the switch on the hose handle MVHR Changing the ventilation filters on an Axco MVHR C Range Unit Changing the ventilation filters on an Axco MVHR HERU Range Unit