Most likely the cause of a clog.

The easiest way to tell is by turning the unit on and checking the system indicator. The more red it is, the more the air flow is being restricted. If it is red, turn off the machine, unplug it and remove the dirt cup. Then open the lid and pull out the rinsable filter. If its dirty, run it under warm water for two minutes and dry it on its side for 24 hours. Wet filtet do not allow dirt to pass through and will cause the motor to overheat.

Now check for clogs in the main hose by detaching it and twisting it. Use a broom handle or other long thin object to brush out any debris within the hose. Those are two likeliest places for a clog to occur.

It’s important to wash your filter every month.

First, unplug the vacuum. Check the brush roll for built-up debris, and clear it of any hair or strings that may be stuck. Once the brushes can be spun by hand, turn the unit on, recline the handle, and see if they rotate. Use the brush on/off button to activate.

If your vacuum cleaner is not picking up like it should there could be a clog in the system. Alternatively, your vacuum may need to be set to a different height more appropriate for the floor type it’s on. Check your system for clogs and also see if a different height setting is better suited for your current floor type.