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Husqvarna Automower Won’t Start – Try this!

By: Author John Cunningham. Published: 2023/09/13 at 7:34 pm

Realizing your Automower won’t turn on is a sticking feeling; your smelly old gas mower still lurks in the corner of the garage, but who has time for that? Besides, we’re not savages!

The most common reasons Husqvarna Automower won’t start include:

  1. The mower is switched off
  2. The battery is completely dead
  3. The micro switch is broken

There are many reasons why your Husqvarna auto mower won’t start. In this article, we’ll look at the common reasons and how we can fix the problem today.

1 The Mower is Switched Off

You’ve scheduled that your mower will go and cut the grass, but you realize it can’t cut the grass because it’s not even powered on. The most common reason your mower won’t turn on is that it is switched off.

There is an on/off switch on the base of your auto mower. This has likely been turned off if it has made a recent journey to the shop. The repair shop likely turned the power off underneath so it can be safely transported to and from your location.

This is a very easy fix. Simply lift your mower from the back and turn it upside down. Here, you will see a standard on-off power button. 0 for off and I for on. Press the switch to (I), and your mower will be powered on.

If your mower has no power on the menu panel, this is the first thing to check. Hopefully, switching it on will sort out the problem, and your auto mower will be cutting again in no time. If this is not the case, we need to dive deeper, so read on to find alternative solutions.

2 Battery is Completely Dead

The next thing to look at is how much charge is actually in your battery. If there’s no charge in your battery, well then, it’s not going to be able to turn on. There has to be a certain amount of charge in the battery for it to mow the lawn.

There are a couple of reasons why there is no power in your battery. The main reason would be that there is no power going to your charging station. The first thing to check is your charging station plugged in. Is power going to the charging station?

Sometimes, we realize that the plug has been disconnected or the connection has shorted somehow. Your power supply should always be fitted at least 1ft above the ground. This is for weather prevention, and also so nobody will drive over it or damage it in any way.

First, ensure the low-voltage cable is plugged in and secured to the power supply. Follow the power supply cable to the socket and ensure that this is also plugged in. A blue light signifies a power supply going to the charging station. If no light is flashing, recheck all the power connections.

If there is a red light showing on your charge station, this means that there is a defective circuit board or the power supply is incorrect. Ensure your low-voltage cable is not damaged between the charging station and the power supply.

If the cable is damaged in any way, it needs to be replaced. These can be bought directly from Husqvarna dealerships or from a number of online stores.

Do not attempt to repair the low-voltage cable; it must be replaced.

If you find that all of the connections are complete and there is no damage to any cables, then it could be that your battery has come to the end of its life. An Automower’s battery’s average lifetime is approximately 3 1/2 thousand hours or 4 to 5 seasons.

This depends on the terrain it has been cutting, the amount of use, and the overall size of your garden.

The battery can be easily checked for its number of usage hours and also whether it is holding a charge.

Do the following to check this:

Hold the zero down on the pin pad to get quick info about your battery life.

Click on info and select battery to get battery information. You can check the usage hours. If it is above 3000 hours and you find it is not holding a full charge, it’s probably time to change it for a new battery.

Depending on your model, the cost ranges from $100 up to $500.

The Charge Level on the screen should be in or around the same level as the capacity. The capacity of your mower can be found on the label on your mower.

It will either be listed as amps or milliamps. The bigger mowers are seven amps or 7000 milliamps, and the smaller mowers are between 1600 and 2000 milliamps (1.6/2A).

The charge level should be within 80% of the capacity, so by doing a quick calculation, you can see whether or not your battery is holding charge.

If it’s not, you’ll find the mower heading back to the charge station quicker than normal. A mower that used to stay out for an hour is now heading back within 30 minutes to recharge or taking more than the average hour to recharge.

This is a sign that your mower battery is coming to the end of its life. The automaker’s batteries may be replaced by the owner. It’s always a good idea to buy original Husqvarna parts. These can be bought either through the Husqvarna dealer or online.

Fitting Automower battery

Always ensure that you buy the correct battery for your specific model. Once you have your replacement battery, reduce the cutting height to the minimum on your mower. Turn the mower upside down and remove the screws holding the battery.

Remove the old battery and insert the new battery. Refit the screws, and the mower is good to go.

Your old battery may be recycled, and your local dealer will usually accept it without cost.

3 Micro switch is broken and needs to be replaced

The symptoms that your micro switch needs to be replaced could be that the mower will start, but it won’t work, won’t go anywhere, or cut anything. The micro switch is located on the back of the menu panel.

New micro switches can be purchased from a Husqvarna dealer or a reputable online store. Please ensure that you buy the correct switch that matches your Automower model. To replace the micro switch, please follow the instructions below.

Fitting Automower microswitch

Firstly, we need to remove the cover; you will need a suitable Allen key to remove four screws: two small screws from the front and two longer ones from the rear.

One end of the microswitch can be found beside the stop button. There is a small clip holding it in place. Remove the clip.

It’s always a good idea to place any screws or clips in a plastic container or somewhere safe where you can find them later.

Your menu board is now exposed; you will need a torque screwdriver to remove the menu board. On the underside of the menu board is a circuit board.

You can then follow the switch cable from the stop button back to the circuit board. Remove the wire from the circuit board stop. The wire flows through the menu cover through a small opening and is held in place by a rubber grommet.

Connect the new switch to the circuit board.

Before connecting to the other end, you can test to see if it’s working. Simply turn on the power switch on the menu panel and navigate through the interface. The switch is correctly connected if this is working.

Place the rubber grommet in the menu cover and tuck the panel back in place. Refit the cover and make sure to align the holes and screws correctly. Be sure not to pinch the switch wire when pulling it through.

Connect the other end of the switch cable beside the stop button. Don’t forget to put the little clip back in place.

Replace the cover and the four screws back in place with the Allen key.

Hopefully, everything is now working, and the switch replacement has fixed your problem.