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Don’t overlook ease of use when buying a vacuum, as sometimes a vacuum with great cleaning performance can be a nightmare to actually use..

If the motor starts to overheat, the vacuum cuts out to prevent permanent damage or an electrical fire..In most cases, the thermal cut-out is activated when there’s reduced airflow through the machine.

A constant stream of cool air is essential for cooling down the motor, so any blockage or clog could cause the thermal cut-out to be activated..The good news is that restoring airflow is usually a matter of finding the problem and fixing it – and this can often be achieved at home.Electrical issues, on the other hand, need professional repair.. Electrical Issues.

The first thing to check is that the vacuum is actually plugged in.It’s easy to accidentally pull the plug slightly out of the socket when cleaning at the end of the vacuum’s range, so double-check that this hasn’t happened.. On a related note, pulling on the cord like this can damage it over time, so it’s definitely something that should be avoided.. It’s also worth trying another plug socket to see whether this fixes the issue.

Sometimes there may be a fault with a plug socket, rather than the Shark vacuum itself.. Damage to the cord may also cause your vacuum to cut off.

Turn off the Shark vacuum and unplug it from the mains supply, then inspect the entire length for any cuts or other signs of damage.. A damaged power cord isn’t something you can fix at home.of the vacuum after the air resistance provided by bags and filters..

This makes it a much more useful metric for comparing the efficiency of vacuum cleaners.Even air watts has limitations, however, especially as many vacuum manufacturers don’t provide easy access to this metric.. We’ve written a full guide to air watts if you’d like to learn more:.

What are Air Watts in Vacuum Cleaners?.How Did EU Regulations Affect Vacuum Motors?.