Vacuum will not auto adjust to carpet height, very loud

SOURCE: Carpet Height Adjusment

In addition to the tab that contacts the bottom of the slider, there are 2 protusions on the adjustable wheel plate that move through holes in the housing, but only when the handle is tilted to begin vacuuming. The wheel plate has a spring that forces the tab against the slider. As the handle is moved to the upright position, the protusions move back through the holes, taking the tab away from the slider and the wheel plate locks in its highest position. Therefore, the position of the slider has no effect while the handle is upright and locked. Hope this helps.

SOURCE: Hoover Windtunnel carpet level adjustment

The suction is so great that it sucks up your carpet, then nothing works. I get my children to stand on the corners/edges of the rug so that it stays perfectly flat on the floor while I vacuum. Or, you can turn off the brush roller (set it to "hard floor" setting). Or, tip the vacuum cleaner's front up slightly while vacuuming, to reduce suction.

SOURCE: height adjustment not adjusting

The height adjustment wont engage unless the handle is in the down position. Not knowing this led me to overturn the hight adjustment knob.

Step on the handle release, pull the handle back and lay the vac on its side. Then you can get the knob and the plate back together again.

BTW, the reason I had this problem is because the front brush slows dramatically when using on carpet, I thought it was set too low, and turned the knob (in a manly fashion, putting it past its limit). Still working on that one. After inspecting the belt, looks like one worn and cracked spot gumming up the works.

SOURCE: Bissell Pet Hair Erase does not vacuum.

It is because the belt is worn or stretched and needs to be replaced. Here are the belts you need and the manual which has instructions:

Bissell Pet Hair Eraser Belts and Manual

SOURCE: I have the Dyson DC14 and its like it's not

Hi its Darran at Dyson.

It sounds as though the internal hose underneath the machine has twisted slightly. With the machine switched off, lay it on its side and look at the base. You should be able to see a small corrigated hose. Simply twist this a quarter turn clockwise which hopefully will allow the head to adjust again.

If you are still having problems, please contact our Helpline on 0800 298 0298 (UK) or 1866MYDYSON (US).

Kind regards
Darran
Dyson Customer Service