Guides, Manuals, Parts & Support

The LawnMaster L10 is a robotic lawnmower that will mow your lawn independently.

The L10 will alternately mow and charge, returning automatically to the charging dock when the battery is low.

The mower is contained within the lawn by a boundary wire which is connected to the charging station. The charging station sends a low voltage signal along the boundary wire which the mower senses and won’t go past.

The boundary wire should be laid around the area of lawn that is to be mowed, and can be used to exclude the mower from certain areas and obstacles, such as trees, shrubs, raised beds and ponds.

The L10 can be programmed to start at a specific time each day, to mow for up to 10 hours a day. The start time can be changed by turning the mower off, then on again via the switch underneath the mower.

The L10 will mow every day, for the duration selected using the keypad.

Please note that turning the L10 off via the switch underneath the mower for any reason will alter the start time. The new start time will be the time at which the mower is turned on again and the start operation is performed.

Please check that the charging station is set up according to the set up instructions:

1. The charging station must be set up parallel to the edge of the lawn, and in-line with the boundary wire.
2. The boundary wire must be straight for at least 1m leading up to the charging station, to allow the mower to align its wheels properly.
3. Spare boundary wire must be completely removed. Do not leave any slack or loops which could result in a conflicting signal to the mower.
4. Ensure the open side of the station is on the right, and the terminals are on the left (when viewed from within the lawn).
5. Ensure the boundary wire that runs under the charging station goes to the black terminal.

This can occur in the first week or two of running a random cutting pattern mower, however this will even out over time to leave a beautiful finish and healthy grass.

To make uncut grass much less obvious from first install, it is advisable to first cut the grass with a push lawnmower to the desired length, then let the L10 maintain it. If this is not possible, it is recommended to raise the robot mower height of cut to lightly trim the grass. The height of cut can be reduced daily over a period of one to two weeks until the grass is the desired length.

It is not advisable to cut more than 20mm of the grass length with the robot mower (e.g. do not try to cut 60mm long grass down to 20mm). This will affect the battery run time and cause build-up of grass clippings on the underside of the mower. The lawn may also look uneven.

As L10 becomes established in a schedule, the grass will become a uniform length.

No, the L10 requires a boundary wire to define the mowing area and guide the mower around the lawn.

Without a boundary wire installed, L10 will spin in a circle searching for signal.

Ensure the boundary wire is installed according to the setup instructions before operating the mower.

The grass is cut using three small sharp blades and the clippings are returned to the lawn surface where the nutrients contained in them fertilise the soil.

This means stronger, healthier grass with less need for supplemental fertiliser and has the added bonus of helping the lawn retain water in dry periods. It also means no grass clippings to dispose of or compost.

Provided that L10 is used regularly, the clippings are not visible to the eye.

No, the L10 Robot Lawnmower is not compatible with the MX 24V battery system.

L10 is supplied with a built in battery, making it IPX5 rated.

Although the boundary wire can be buried if desired, it’s not necessarily recommended.

Cutting the grass very short where the boundary wire is to be laid is usually enough, and after a few weeks the grass will have grown over the boundary wire, making it practically invisible.

Laying the boundary without burying it also makes it easier to make changes and repairs if required.

Choose from cutting heights of between 20mm and 60mm for a neat looking lawn by adjusting the dial on the top of the L10.

For best performance and to encourage healthy lawn growth use 60mm for longer grass and after regular mowing, gradually reduce the cutting height to your desired length.

This could be due to several reasons, the most common reasons are:

1. An incorrectly laid boundary wire. If this is your first time setting up the mower or you have recently made changes to the boundary wire or charging station of an existing set up, check our section "Is My L10 Boundary Wire laid correctly?" An incorrectly laid boundary wire will make the mower try to undock towards the outside of the lawn, or spin in a circle whilst on the lawn.
2. The rain sensor is triggered. Check whether the warning indicator is amber. This indicates the L10 is waiting for dry conditions.
3. Error triangle lit. If the error triangle is red, this can indicate a fault. Contact our helpline for further info.
4. Battery indicator lit. If the battery indicator is red, the battery is low. If the battery indicator is flashing red/green, this could be a battery or switch fault. Contact our helpline for further info.
5. A break in the boundary wire. Particularly after wintery weather, connectors may work loose, or cracked insulation may result in earthing of the boundary wire. Animals may dig up and break the boundary wire, or remove wire ends from the terminals. Check the length of the boundary wire for any breaks or loose connectors.

This may be due to the boundary wire set up. If the wire ends are in the wrong terminals, everything outside of the lawn becomes the working area.

Ensure the wire running under the station is inserted in the black terminal. Ensure the wire running away from the station is in the red terminal. Do not cross the wires.

Check there are no lumps of bumps behind the charging station, this could result in the pivoting from wheel being knocked off-course when L10 is docking or undocking.

A green light on the charging station does not guarantee the boundary wire is laid correctly.

Here's a checklist to make sure you've laid the boundary wire correctly:

1. The boundary wire end running away from the charging station is inserted into the red terminal and runs anticlockwise around the lawn.
2. The other end of the boundary wire runs under the charging station and inserts into the black terminal.
3. If connectors are used to repair of extend sections of the boundary wire, make sure only weatherproof connectors like the type supplied are used and they are fully clamped shut with mole grips or a mallet.
4. Do not cross the wires or leave loops of boundary wire.
5. Do not overstrip the wire ends and make sure there is plenty of metal core left after removing the insulation - overstripped or thin wires may result in a weak signal.
6. Most importantly, ensure the boundary wire ends are in the right connectors. See point 1 and 2.

Replacement batteries for L10 are available from the Accessories section of our website - part number 631001122.