The reason it is not picking up is probably because the belt is stretched, worn or broken and is not turning the brush the way it should and therefore not picking anything up. You should change the belt on your model at least once a year. Here is a link to the belt you need and a link to the owners manual which has belt changing instructions:
We have a Eureka Capture. The power is on, but the suction is not working. It is not vacuuming the...
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We have a Eureka Capture. The power is on, but the suction is not working. It is not vacuuming the dirt.