Hi , I have a vax rapid power revive carpet cleaner and the brushes aren't spinning, can you help?

To troubleshoot this issue, start by checking the belt on the cleaner. Make sure it has not become cracked or frayed. Also ensure the brushes are properly installed and not hampered by dirt or debris. If the belt looks intact and the brushes are secure, next check the belt tensioning wheel. It should be properly tightened, so if necessary, adjust accordingly. Lastly, some models use separate power sources to drive the brush roll and the suction motor, so make sure that both are working correctly.