How to Identify and Fix Common Vacuum Problems ?
Our sources include academic articles, blog posts, and personal essays from experienced Vacuum Technicians :
One of the easiest ways to increase vacuum cleaner suction is to empty the dust bag or container. Dust containers need to have enough space for airflow, otherwise, they could get clogged and have less suction power. Regularly check your dust compartment and empty or change it when it`s already 70-80% full.
Vacuum cleaners are fairly simple machines. They need power to be transmitted to the vacuum to create a suction force that lifts debris. So, the usual areas that cause suction loss include the wrong height setting, stuck rollers, a faulty gasket, a broken vacuum belt, a filled bag, or a clogged hose.
Removing a clog
Use a pair of pliers to make one end of the hanger into a hook shape. Put the end of the hook into the hole where the vacuum where the clog is located. Push the hook down until it won`t go any further. In some cases the hook will go all the way through and push the clog out the other side.
All vacuum cleaners operate based on air flowing from the opening at the cleaning head or tool, through the vacuum cleaner and the bag and/or filter system and then out the exhaust port. This airflow is created by the vacuum motor, which also may be referred to as the suction motor.
Low compression, an intake leak or tight valves also can cause low vacuum at idle. If the vacuum reading fluctuates within the normal range-the gauge needle bounces around a lot-uneven compression (broken rings or leaking valves or head gasket in one or two cylinders) is a likely culprit.
Suction pressure should be kept at less than 200 mmHg in adults. It should be set at 80 mmHg to 120 mmHg in neonates.  The catheter size used for suction should be less than 50% of the internal diameter of the endotracheal tube. A common conversion is that a 1 mm diameter is equal to a 3 French.
The suction power is measured in Watt (W) and is typically between 250 W and 450 W for machines with 1 motor. The suction power is to be measured at the end of the tube of a complete vacuum cleaner (i.e. with tube, hose and filters – but without nozzle).
Boil old suction cups to revive them.
Take the pot off of heat and drop your suction cups in for about 30 seconds. Take them out with a pair of tongs and pat them dry on a lint-free towel. Try to use the suction cups right after you dry so they`re still warm and flexible.
With the hose in the exhaust, try gently flexing the hose starting at the exhaust and moving towards the open end. Or, use a broom handle, or a length of conduit long enough to reach where it`s clogged and gently try to dislodge it. A plumber`s snake would work too.
Clog located in the vacuum hose
Turn the unit on and feel the suction at the end of the hose handle. If there is no or low suction, then the clog is in the hose. You can remove the clog by running a long, stiff object through the hose, such as a butter knife, starting at the wall end.
If there is a clog in the vacuum, you won`t have good suction and the vacuum won`t work. The clog can be in the vacuum head, the hose or where the hose meets the actual vacuum.
Overcharging leads to overfeeding the evaporator with refrigerant, which leads to higher suction pressure. Another possibility is having oversized EXV causes an overfeed to the evaporate, which increases your suction pressure.
The Suction Control Valve or SCV is responsible for the control of fuel pressure inside common rail engines. It allows only the required amount of fuel to be pumped through the system.
The most common problems found in vacuum cleaners are low suction force, excessive noise, burning smell, vacuum not turn on, and overheating. These issues can be fixed by either cleaning the device or replacing some parts of the device. At times, it is best to seek a professional to fix the cleaner effectively.
Vacuum pressure is indicated by pvacuum, and is related to absolute pressure as follows: pvacuum = pa – p, where pa is the local atmospheric pressure.
There are two separate suctioning techniques, namely the closed and open system. Basic principles of suctioning are the same, and care should be incorporated during suctioning.
What is a Good Suction Power for a Vacuum Cleaner? An upright cordless vacuum cleaner should have at least 100 air watts to effectively clean a variety of floor surfaces, with the best Samsung vacuum cleaner reaching up to 210W*.
The basic formula F=PxA is used to calculate the force of the suction cup with: F is holding force (or the vacuum force of the suction cup) P is pressure. A is is the contact area (the size of the suction cup surface)
Use a mild detergent or a mixture of bleach and water (1 part bleach/10 parts water) and rinse thoroughly. Follow the instruction manual when disinfecting the mechanics of the unit. Never submerge the suction unit. Use disinfectant wipes to clean all outer surfaces, including control knobs, screens and handles.
Regardless of what type of vacuum cleaner is being used, all of these products have a motor to create the negative pressure, or suction, necessary to draw in the dust and debris.
The powerful airflow from the vacuum can help shake dirt and debris loose and pull them into the vacuum. Without the fan, a vacuum couldn`t work at all. But the roller brush is critical, too. It`s necessary in dislodging deep dirt and stuck debris, and it helps clear a path for air to carry dirt into the vacuum.
Motor. Every vacuum has a heart, the part that keeps it running and this is the motor. Where is your vacuum cleaner`s motor located? It is the heavy part of your vacuum attached to a fan where air is forced over to expel the exhaust.