dredge nozzle blowing instead of sucking

They can get jammed in the brush bar and can impact how effective the suction on the Dyson is. This, in turn, can affect the suction on the Dyson.Īnother major culprit is strands of fabric, for example old bits of cotton. If you’ve got pets or have long hair, the brush bar will become choked by hundreds of strands of hair. So, naturally over a period of time this section of the Dyson will become bunged up with whatever it picks up off the floor. The bar is one of the main points of contact the hoover has with dirt. One of the easiest places to start is to check the brush bar on your Dyson. Tip: Before you start cleaning and removing parts from your Dyson, make sure the machine is off. So, read on to find out why your Dyson isn’t sucking! You may even find that the issue can be easily fixed, saving you hundreds of pounds.

One of the reasons listed below could be troubling your Dyson. But before you send it off to the recycling centre, check out some causes and solutions to this problem below. With the area of low pressure eliminated the check ball is seated against the o-ring making a water tight seal and eliminating backflow.A Dyson that’s not sucking dust and dirt off the floor isn’t exactly fulfilling its purpose as a vacuum cleaner. When the injector is placed in a high pressure mode the back pressure created by the nozzle fills the cavity after the restrictive orifice and eliminates the area of low pressure. This vacuum is strong enough to both draw the chemical and lift the check ball that is in the barb to prevent the backflow of water. When the water flows freely across the cavity without any backpressure it creates an area of low pressure that sucks in the chemical through the inlet barb. In a chemical injector a restrictive nozzle is placed just in front of a cavity. This principal states that when water is forced through a restricted area without the volume changing its velocity will increase and it will create a low pressure zone.

If this is the case you will need a repair kit to fix it or just replace it for a few dollars more.ĭownstream chemical injectors work by means of the venturi principle. The spring will keep the check ball from going all the way up when sucking chem and blocking the inlet port. If is an older one you may have dissolved the spring inside if you used a lot of bleach or acid. When the injector is working you should feel the suction with your finger. I was going to say that if they are on backward they will not work.

Dredge nozzle blowing instead of sucking