Most common questions used to investigate
Has the trimmer's battery been charged properly?
Was the charger that was used having the proper power specifications according to the trimmer's requirements?
Was the charging light ON on the trimmer when you connected it to the charger?
Was there any power fluctuation while the trimmer was charging?
Have you pressed the power button on the trimmer to turn it ON?
Have you been using the same trimmer for a long period of time?
Was the trimmer dropped into some liquid or in contact with any liquid?
Do you clean you trimmer and oil it regularly?
Common conclusions
Most trimmers have a battery that has to be charged for a period of time so it can work on full capacity. Charge it according to the given manual.
Trimmers of different shape and size might have different battery power requirements so it is important to charge it with a charger which has the same specifications as the battery.
This indicates that either the charger was not plugged in properly or either end or the light has blown out and the trimmer needs repair.
This might have led to the trimmer's internal circuit to burn out due to a power surge or the charger might have been damaged. Get it checked and take appropriate action.
Most trimmers have a distinct button to control the speed of the trimmer or the main power. This can be found by either reading the manual or simply looking for the most distinct button on the trimmer with markings.
Trimmers also have a life and after it has completed it and gone over the charge cycles will either become faulty or the battery would turn out to be dead. Get it checked or replace with a new one.
Some trimmers might not have proper sealing applied to the body due to which the liquid might have gotten inside the trimmer and damaged the circuits. Dry it out and check if it power ups, if not get it checked by a technician.
Trimmers need proper care to have them work at full capacity. This includes oiling the motors, cleaning the front blades and using a small tool to clean out the hair stuck to it.
There can be many issues to make the trimmer stop working at full capacity but most can be diagnosed through simple means. If not, contact the online helpline or take it to a local technician.
References
Related Problems
Author

muneebbabar null
Hi! I’m Muneeb.
My background is in Electrical Engineering, IT and General Sciences . I enjoy writing about electronics, DIY and Self-Help. I’m always in pursuit of interesting materials and I love reading books and blogs about new technologies, IT solutions or DIY guides.
You can find me on LinkedIn at: [www.linkedin.com/in/muneeb-babar-]