If a lawn mower runs on diesel
Lawn mower won't start - 7 possible causes and immediate help
If the lawnmower suddenly doesn't start anymore, there can be different reasons. Find out here what could be the cause and how you can still get the lawnmower started with simple emergency measures.
If the lawnmower suddenly refuses to work. Mowing the lawn is not one of the most beautiful gardening tasks, but it has to be done after all. Some may even enjoy doing a few laps on the mower. But the fun fizzles out pretty quickly when the lawnmower suddenly doesn't start anymore. Most of the time this happens in situations where you don't have much time anyway, but the lawn urgently needs a cut.
And now? No panic. Often times, it's easy to find the problem and fix it yourself. Fortunately, many lawnmowers are still built so that you can carry out the most important maintenance and repairs yourself.
Only when nothing works anymore and the specialist doesn't have any advice, then it might make sense to consider a new purchase and to switch to a more modern device. More developed lawnmowers come onto the market every year, as the lawnmower test on Warenvergleich.de currently shows.
Lawn mower won't start - that could be the problem
Cause 1: lack of fuel
You may be smiling to yourself now, but it has just happened too often so that this point should definitely be on this list.
Before starting the lawn mower, you should check that there is still enough fuel in the tank. If necessary, you just have to add something.
Incorrect fuel can also be a reason why the lawnmower does not start anymore. Most models run on normal gasoline, but there are also lawnmowers that have to be filled with diesel. You are not sure? Then do not try to start any more. In the worst case, it could damage the engine. The manual or operating instructions will give you precise information on which fuel your lawnmower needs to be filled with. If you made a mistake here, then you should pump out the wrong fuel as quickly as possible and replace it with the correct one.
Cause 2: Defective spark plug
The correct fuel has been refilled, but the lawnmower still won't work? Maybe it's the spark plug. This could possibly be defective or very dirty. To get precise information about it, you should take a closer look at the spark plug. The manual or operating instructions will show you exactly where it is located. It also explains in detail how to solve it.
Often it is enough to clean the spark plug with an old cloth (without water!). The contacts in particular should be free of dirt so that a spark can jump over.
If it still doesn't work afterward, it may be broken. Then you have to buy a new one. You will find a detailed description of this on the existing spark plug. It should be explicitly the same so that it will fit in your lawnmower as well.
Cause 3: dirty air filter
The lawnmower's engine needs clean air to start properly. They also have an air filter. Over the years, however, a lot of dust, dirt and even oil accumulate in it. According to the experts at motorgeraete-stichel.de, all types of filters (paper air filters, foam air filters, ...) need an all-round check after about 25 hours of operation (or every quarter). Then they should be thoroughly cleaned or replaced at the latest.
- The dirt in the paper air filter can be easily poured out. A compressor is also ideal for such cleaning work.
- With foam air filters, you can achieve the best results with hot water and washing-up liquid.
You will be amazed what it can do when starting up when the air filter is free of dirt and grime again.
Cause 4: Blocked knives
You are probably wondering what the knives have to do with the attempt to start. Pay attention! If you pull the starter cable and the blades are blocked at the bottom, the engine will not start. Often you notice this quite simply because the cable is difficult to pull.
In that case you should take a look at the substructure. Often it is just old bits of grass or small stones that get caught somewhere or have simply built up over time. Carefully turn the lawnmower sideways and remove any blockages.
But beware! According to presseportal.de, fingers are injured in around 34 percent of all accidents in the garden. The lawnmower is right at the top of the list of causes. It is essential that you unplug the ignition plug from petrol lawnmowers and the power cord from electric lawnmowers beforehand. This will prevent the lawnmower from starting during your maintenance and cleaning work.
Cause 5: Too long downtime
The winter was long and the lawnmower was able to enjoy a long break. What has certainly been just as relaxed for you can lead to extreme starting problems for the lawnmower itself. If a lawnmower is left idle for too long, it may not start immediately in spring and may need several starts.
Often times, the problem has already been resolved if you try the startup process a little more often. Some operating instructions even tell you what to do if the lawnmower has had a long break.
Cause 6: Special feature of ride-on mowers
Anyone who is allowed to call a lawn tractor their own can consider themselves lucky. This allows large areas to be mowed particularly quickly. What you must not forget, however, is that ride-on mowers work much like a car. It is also powered by a battery. If this is empty, the engine cannot start. So make sure in advance that it is completely operational.
Cause 7: Special feature of electric lawnmowers
Many of the causes mentioned above do not apply to electric lawnmowers. But that doesn't mean that starting an electric lawnmower can't be problematic.
Electricity is essential for an electric lawn mower. Here it can happen that the power cable is defective or the plug is simply not properly in the socket.
If the cable is defective, contact a specialist. As a layperson, you should definitely keep your hands off such repairs.
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