How to Identify and Fix Common Vacuum Problems ?
Our sources include academic articles, blog posts, and personal essays from experienced Vacuum Technicians :
If your vacuum cleaner keeps turning off, this could be due to the following reasons: Blockages – check the hose and head for any obstructions. Filter – always check your filters, if these are clogged this could be causing the vacuum cleaner to work harder and lose suction power.
If your vacuum motor appears to cut out when it`s warm for a few minutes before restarting, it may be due to the motor overheating. This may be caused by blocked filters. They can become clogged over time from a buildup of dust molecules, preventing less or no cool air to flow into the motor.
If the unit runs for a few minutes then shuts off, the motor needs to be replaced. Central vacuum motors generally last for 800-1100 working hours. If your motor has run less than 800 hours or activates by jolting the canister, it may be possible to extend the life of the motor by replacing the carbon motor brushes.
The vacuum has a safety feature that turns off the vacuum when the vacuum gets to a certain high temperature or overheats. This happens because the vacuum has a motor protective thermostat. If the vacuum turns off due to overheating, the thermostat has to be reset before you can use it again.
Overheating usually occurs because the dust bag has not been emptied, filter has not been cleaned or there is a blockage in the floor tool, wand or bent hand piece. If your vacuum shuts down unexpectedly, make sure you turn the vacuum off and unplug it from the wall socket.
Overheated Motor
If your vacuum was working fine and then suddenly shut off, it may have overheated. Most vacuums are equipped with a thermal protector safety switch that won`t allow the motor to run when it becomes overheated. You will need to wait for 30 minutes to 2 hours, depending on your machine, to try again.
A vacuum cleaner can run continuously for 30 – 60 min each time. The vacuum cleaner has no suction power. For example, a hair cannot be sucked up.
check for leaks or kinks in the tubing. ensure the filter is not wet (keep a backup filter with your supplies) ensure the float shut-off is not activated (if this is part of your suction machine) check for canister leaks and cracks.
If all you hear from the vacuum unit is a click at the when you try to start the vacuum motor from inside the house, then the motor in the unit is dead and has to be replaced. A strong odor from the shellac, which coats the copper coil windings, is an indicator that the motor is about to or has burnt out.
Shark vacuum brush not spinning is a common issue. The problem occurs mainly due to blockage, damaged belts, unemptied dust cups, or loose nozzles.
Vacuum cleaners are often designed to turn themselves off if they hit a thermal cut-off point. Basically, if the machine is starting to overheat, there is an automatic system in place to prevent damage to your vacuum or other issues. The most common cause of overheating is blockage.
Check Your Battery & Charger:
Batteries don`t last forever depending on age and use. You may need to buy a new battery if your Dyson vacuum is turning on and off after only a few minutes of use.
If you find that your machine is turning off intermittently, the filter in your vacuum is most likely full and covering the ventilation system. Remove the filter, then empty and wash it. Allow the filter to dry for at least 24 hours, or until it is completely dry.
Economical, high-visibility acrylic vacuum chambers are ideal for most manufacturing, testing, and research applications. Terra`s 1” thick welded acrylic (plexiglass) vacuum chambers hold a full vacuum (29.9″Hg) for 72 hours with no detectable leaks.
The time allowed for decay depends upon the size of the system, but generally, 10 minutes minimum with 1 minute added per ton is a good guideline. The moral of the story is this: A proper evacuation may take 15 minutes, 15 hours, or 15 days, it simply takes what it takes.
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.
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). Some manufacturers show the results from measurements made at the suction of the actual vacuum cleaner.
Suction pressure should be kept at less than 200 mmHg in adults. It should be set at 80 mmHg to 120 mmHg in neonates.
Check Your Battery & Charger:
Batteries don`t last forever depending on age and use. You may need to buy a new battery if your Dyson vacuum is turning on and off after only a few minutes of use.
One of the first things to do when your Dyson vacuum cleaner keeps starting and stopping is to empty the bin. It may be full, or the machine may simply perceive it as too full to continue working. Dyson vacuum cleaners require constant airflow through them to work, and a full bin can stop this from happening.
Check Your Battery & Charger:
Batteries don`t last forever depending on age and use. You may need to buy a new battery if your Dyson vacuum is turning on and off after only a few minutes of use.