Why Is My Hedge Trimmer Not Working

Why Is My Hedge Trimmer Not Working

There are times when a hedge trimmer simply refuses to work or cut. And sometimes it even releases smoke. If this happens to you, don’t worry because these issues are quite common with hedge trimmers. By carrying out only a few maintenance procedures, one can prevent or solve these issues.

However, you need to know where the problem is coming from so you can tackle it effectively. Below are all the reasons why your hedge trimmer is not functioning as it should. Keep reading.

Why Your Hedge Trimmer Is Not Working

Hedge trimmer refusing to work is one of the most common problems associated with the tool and this can be attributed to several factors. The most popular cause is a faulty spark plug.

When the electrode of a spark plug is burned or damaged, there’s usually so much carbon build-up and the insulator can crack. You will need to replace the spark plug immediately to find out whether the fault is coming from there.

There is also a possibility that the machine’s carburettor is somehow clogged. When a carburettor is clogged, it becomes difficult for fuel to run through the machine and help to power it on.

While it can be really easy to clean out a carburettor, more often than not, this does not solve the problem. You may have to change the whole carburettor before the trimmer can start working again.

When there’s a problem with the trimmer’s rewind spring, then your machine may also not start. Rewind spring is important to a hedge trimmer because it allows you to start the again by recoiling the starter cord. The solution is to replace the rewind spring or even the whole recoil set.

You can also check your fuel filter for clogs. Your hedge cutter cannot start when its fuel filter is clogged. Therefore, solve this problem by draining out all the fuel in the tank and change the filter.

Why Your Hedge Trimmer Is Not Cutting Well

Hedge Trimmer Is Not Cutting Well

Your hedge trimmer not cutting properly can also be due to a variety of causes. The most likely reason is that the blades are not sharp enough. One way you can tell whether or not the blades are dull is by observing the branches that you have cut. Are they frayed?

If yes, then your blades need sharpening. It is important to let a professional help you with this since the blades must remain at their correct cutting angle. After sharpening, the blades should make clean and neat cuts on the hedges.

Again, the problem can be as a result of twigs that have gotten caught in your blades. This can prevent the blade from moving properly or stop them from turning at all. The blades often get caught in blades because the upper blade has separated from the lower one.

This is often a result of repeated use over a long period. You will need to remedy the situation by rearranging the blades so that the machine can start cutting as it should.

Your hedge trimmer will also not cut properly when its blades have been blocked by debris. Luckily, you can easily clean this debris away from the blades. Use a wet cloth. Afterwards, oil up the blades lightly so that they do not get clogged again.

Why the Blade of Your Hedge Trimmer is Not Moving?

If you switch on your hedge trimmer and it comes on, but its blades refuse to move, then a few things can be responsible. It could be a blade problem or an issue with the gearbox or clutch.

When the clutch is broken or distorted, it can prevent the blades from spinning. You need to change the clutch if it is already broken.

If, however, the clutch is merely tensioned, experts will easily be able to take care of the issue. You must use the correct part number since the cutter can damage further if you don’t.

The gearbox and trimmer blades are connected. This is why if the gearbox is damaged the blades too will be affected. It is normal for the gearbox of a trimmer to become damaged if it has been used continuously over a long period. The remedy is to replace the gearbox, and everything will be fine again.

Also, blades that are impaired will often not move when the machine is powered. These blades have a high tendency to remain fixed to a spot if they have been clogged by debris and twigs.

Hedge cutters with bent teeth will also likely not rotate. You can prevent the trimmer teeth from getting bents by avoiding all situations that can cause the cutter to hit the ground or any other hard surface while the machine is already on.

Another cause of hedge cutter not mowing is tree sap. The sap of twigs can remain on the blades and force them to freeze. This is why after each use you should apply WD40 on the cutter blades. Other lubricants can effectively stop tree sap from sticking to trimmer blades.

Why Your Hedge Trimmer Is Smoking

Smoking speaks column about the health of your hedge trimmer. While it is a sure sign that something is wrong with the machine, it can be a way of drawing your attention to the fact that the machine needs immediate attention or mean that your trimmer is too damaged for repair.

If yours is a petrol-powered trimmer, simply put it off immediately it begins to smoke. This is very important. Make sure the machine cools down before doing anything to it, especially since the motor is what you’ll need to work on.

A smoking trimmer usually means that the engine of your equipment needs replacement. Black smoke is a sign that the trimmer has a problem with combustion while grey or white smoke is a clear indication that the motor is faulty.

Advice: After doing all of the things if your hedge trimmer still not working, it’s time to get a new hedge trimmer. You can buy any of the trimmers from cordless, corded or even petrol hedge trimmers, that’ll depend on your needs or personal preference. As per greenmachinery’s review -a battery hedge trimmer can be more convenient than any type of the hedge cutters as because they don’t have any hassle for cord or even the fuel.


You can prevent the majority of these hedge trimmer issues by simply maintaining the tool as you should.

Many of the problems you’re experiencing with your trimmer are a result of the spill over effect of neglecting the machine for too long. Once you follow our tips and fix your trimmer, make it a habit to examine and maintain your trimmer regularly.