Easily find the correct relay for your central vacuum system with just knowing the brand of your central vacuum power unit. Usually, if your central vacuum will not turn off, you will need to replace the pc board relay. If you need assistance with replacing a central vacuum relay, give us a call and speak with one of our vacuum experts. You can also find great information, and lots of tips and suggestions with our knowledge base and troubleshooting guide. You can also find central vacuum parts such as motors, motor gaskets, motor carbon brushes, bags, filters, and a wide assortment of central vacuum accessories, and attachment sets.