Cordless Lawnmower Troubleshooting

How Do I Start My Cordless Lawnmower?

Overview

Starting a cordless lawnmower requires a few important safety and setup checks before the machine will operate. If the mower does not start, it is usually due to the battery not being fully charged, the battery not being correctly inserted, or the safety key not being installed.

This guide explains the correct preparation and start procedure to ensure your cordless lawnmower operates safely and efficiently.

Step-by-Step Guide

Step 1: Check the Battery Charge

• Ensure the battery is fully charged before use.
• Press the test button on the front of the battery to check remaining power.
• If the indicator shows low charge, recharge the battery fully before use.

Step 2: Insert the Battery

• Lift the battery compartment flap.
• Slide the battery into the slot.
• Push firmly until you hear a definitive click.
• The click confirms the battery is securely locked in place.

Step 3: Insert the Safety Key

• Locate the safety key slot on the mower.
• Insert the safety key fully into position.
• You should hear a click from the micro switch, confirming correct installation.

Step 4: Start the Lawnmower

• Stand in a safe operating position behind the mower handle.
• Press and hold the safety button on the side of the switch box.
• While holding the safety button, pull the start lever towards the handle.
• The mower motor will start once both controls are engaged.

Step 5: Stop the Lawnmower

• Release the start lever to stop the motor.
• The mower will shut down immediately.

Troubleshooting Tips

Mower Does Not Start

• Check that the battery is fully charged.
• Ensure the battery is inserted correctly and clicked into place.
• Confirm the safety key is fully inserted.

Motor Cuts Out

• Check battery charge level.
• Ensure no grass blockage under the mower deck.
• Verify all safety components are correctly engaged.

Important Safety Information

• Always ensure the safety key is inserted before starting.
• Never attempt to start the mower without the battery securely installed.
• Keep hands and feet away from the cutting blade at all times.
• Remove the safety key and battery before cleaning or maintenance.

Following these steps will ensure safe and reliable operation of your cordless lawnmower.

Overview

Starting the 108V cordless lawnmower requires a series of safety checks and a specific start sequence. The mower will not operate unless the battery is fully charged, correctly inserted, and the safety key is in place.

This guide explains the correct start procedure, along with how to use the self-propel function for assisted mowing.

Step-by-Step Guide

Step 1: Safety and Power Checks

Before starting the mower, ensure the following:

• The battery is fully charged.
• Press the test button on the battery to check charge level.
• The battery is fully inserted and secured in place.
• A definitive click confirms correct installation.
• The safety key is fully inserted.
• You should hear a click from the micro switch when correctly fitted.

Step 2: Start the Lawnmower

Step 1: Power On

• Press the centre of the power ON/OFF button.
• Hold for approximately 2 seconds.
• The green LED will illuminate, indicating the mower is powered on.

Step 2: Engage Safety Controls

• Press and hold the safety lock button.
• While holding it, pull the motor switch bar towards the handle.

Step 3: Start Cutting

• The motor will begin running.
• The mower is now in operation.

Step 4: Stop the Mower

• Release the motor switch bar to stop the blade immediately.

Step 3: Self-Propel Function

The self-propel feature can be used with or without blade rotation.

Option A: Self-Propel Without Blade Rotation

• Turn the power switch to ON.
• Push the rear self-propel switch bar towards the handle.
• Hold to activate movement.
• The mower will move forward automatically.
• Release the bar to stop movement.

Option B: Self-Propel With Cutting

• Start the mower using the standard start procedure.
• Hold the front bail bar with one hand.
• Engage the rear drive bar.
• The mower will cut and move forward simultaneously.

Adjusting Self-Propel Speed

• Use the speed adjustment lever.
• Push forwards or backwards to increase or decrease speed.
• The lever can be set at any position for variable control.

Overview

Assembling the handles on your cordless lawnmower is an important step to ensure safe and comfortable operation. While the exact design may vary slightly between models, most lawnmowers use a similar handle structure consisting of lower handles attached to the mower body and upper handles secured using quick-release clamps.

Correct assembly ensures the handles are stable, properly aligned, and safely locked in place before use.

Step-by-Step Guide

Step 1: Connect the Lower Handles to the Mower

• Locate the lower handle sections.
• Align them with the mounting points on the mower body.
• Insert the handles fully into position.
• Some models may require firm pressure to ensure a secure fit.
• Secure the lower handles using the provided screws or fixing points (if applicable).

Step 2: Assemble the Upper Handles

Most models use a quick-release clamp system at the mid-point of the handles.

Step 1: Insert the Bolt

• Insert the bolt from the inside of the handle frame.
• Ensure the bolt head is positioned on the inside of the handle.

Step 2: Fit the Washer

• Place the washer on the outside of the handle frame.
• Ensure it sits flush against the surface.

Step 3: Attach the Quick-Release Clamp

• Screw the quick-release clamp lever onto the exposed bolt thread.
• Tighten until the handle feels secure but still adjustable if needed.

Step 4: Lock the Handle in Place

• Once the correct tightness is achieved, press the lever down.
• This locks the handle firmly into position.

Step 3: Final Alignment Check

• Ensure both left and right handles are aligned evenly.
• Check that all bolts and clamps are tight and secure.
• Make sure there is no movement or looseness in the handle structure.

Overview

The 108V cordless lawnmower is designed with an automatic variable speed system that intelligently adjusts motor power during use. This feature helps optimise battery runtime while maintaining effective cutting performance across different grass conditions.

When working in longer or thicker grass, the motor will automatically increase speed to provide extra power. When cutting lighter or shorter grass, the motor will reduce speed to conserve battery life and improve efficiency.

Normal Motor Speed Behaviour

It is completely normal for the motor speed to change during operation. You may notice that:

• The motor speeds up in dense or overgrown grass.
• The motor slows down when cutting lighter or already-trimmed areas.
• Speed adjustments happen automatically without user input.

• This behaviour is part of the mower’s intelligent power management system.

  Important Information

  • Variable motor speed is a normal feature of the 108V system.
  • The mower is designed to balance performance and battery efficiency automatically.
  • No manual speed adjustment is required for normal operation.

Understanding this feature will help ensure you get the best performance and runtime from your cordless lawnmower.

Overview

Your cordless lawnmower is designed with an automatic variable speed system that adjusts motor power based on cutting conditions. This helps maintain strong cutting performance while also optimising battery run time.

When the mower encounters longer or thicker grass, the motor will automatically increase speed to provide additional power. When cutting lighter or shorter grass, the motor will reduce speed to conserve energy and improve efficiency.

These adjustments are normal and part of the mower’s intelligent operation.

Normal Motor Speed Behaviour

During regular use, you may notice:

• The motor speeds up when cutting dense or overgrown grass.
• The motor slows down when moving through lighter or already-cut areas.
• Speed changes occur automatically without manual adjustment.

Important Information

• Variable speed is a normal feature of your cordless lawnmower.
• The system is designed to balance performance and battery efficiency automatically.
• No manual adjustment is required for standard operation.

Understanding this feature will help you get the best performance from your lawnmower.

Overview

Excessive vibration in your 108V cordless lawnmower is usually caused by an unbalanced, loose, or damaged blade. This can happen if the blade has struck an obstacle such as stones, roots, or hard debris in the garden, or if the blade or adapter components have become worn or corroded.

In some cases, rust, bending, or damage to the blade mounting lugs can also affect balance and lead to vibration during operation. If the blade is damaged, it must be replaced before further use.

Step-by-Step Guide

Step 1: Switch Off and Secure the Mower

• Turn the mower off completely.
• Remove the battery and safety key (if fitted).
• Ensure the mower cannot be started accidentally.

• Step 2: Inspect the Blade

  • Carefully check the blade for:
    • Cracks or bends
    • Rust or heavy wear
    • Damage from impact with objects
  • Check the blade adapter lugs for signs of shearing or damage.

• ⚠️ If any damage is found, the blade must be replaced.

  Step 3: Remove a Stuck or Tight Blade (If Required)

  If the blade is damaged and difficult to remove:

  Step 1: Secure the Blade

  • Use a strong wooden block or similar object.
  • Wedge it firmly to prevent the blade from moving.

• Step 2: Loosen the Blade Bolt

  • Use a socket wrench on the blade fixing bolt.
  • Turn the bolt anti-clockwise.
  • Apply firm initial force, then continue loosening gradually.

• Step 3: Remove the Blade

  • Once the bolt is removed, carefully take off the blade.
  • Inspect the mounting area for damage or debris.

• Step 4: Install the New Blade

  • Position the new blade onto the blade adapter correctly.
  • Ensure it is seated properly and aligned.
  • Refit the blade bolt.
  • Tighten securely using the socket wrench.

• Step 5: Final Safety Check

  • Confirm the blade is firmly fixed and does not move.
  • Ensure no tools or debris remain in the mower.
  • Reinsert the battery and safety key before testing.

This article will cover the soft fixes you can take if you are having problems with your cordless lawnmowers wheels.

TABLE OF CONTENTS

• How to fix this problem
• Alternative Resolution: Star Washers

Depending on the size of your model, this is how to fix this problem:

1. Lever off the wheel trim/hub cap.
2. Locate the flat washer & circlip, which are most likely loose inside the wheel.
3. Make sure the metal bearings are in place inside the wheel.
4. Fit the wheel back onto the axle.
5. Slot on the flat washer, followed by the circlip. Put these flush, as close as possible, to the wheel bearing.
6. Fit the wheel trim/hub cap back onto the wheel.

Wheel set up for 34cm^ - applies to 34cm blade mowers and above

On smaller models: ie.) 32cm, follow the same procedure as above, but instead of there being a circlip and washer, there is just a 'locking ring' which fixes the wheel in place. There are also no separate wheel bearings, as they are already present in the wheel itself.

Note: If you are missing these axle-fixing parts (washers & circlips or locking ring - or wheel bearings), then please contact our helpline and we may be able to provide you with some replacement parts. 

Alternative Resolution: Star Washers

• If this does not resolve your issue, then please contact our technical helpline via phone or email, and we will be able to send you some 'star washers'. These help to keep the wheel in place, and fix onto the axle. This can be on top of, or instead of, the washer and circlip.

Try the following procedure:

1. Place wheel onto axle
2. Place star washer on top of axle, aligned correctly (see image) 
3. Push the sides of the star washer, pushing the opposite side each time. (see image)
4.  Ensure all of the star washer is pushed onto the axle enough to secure but not too much to create friction on the wheel. Refit wheel cover.

The cutting height is centrally adjusted by the cutting height adjustment handle. Different cutting heights can be selected as follows: 

You would need to check the connections between the height adjustment lever, rear axle and the connecting rod:

1. Pull the cutting height adjustment lever outwards. 
2. Move it forwards or backwards to select the desired cutting height. 
3. Return adjusting handle back into place. Make sure the lever is secured in position. From position 1 to position 7, the cutting height ranges from 25mm to 75 mm.

This article will cover how to do a safety key check on your Cordless Lawnmower:

• If your mower is not starting at all, it could be an issue with the safety key. It should be pressing against a small black microswitch.

Please do the following:

1. Remove the safety key tab.
2. Hold onto the start/stop button and the lever on your handle.
3. With a long implement, such as a flat-head screwdriver, press down on the black microswitch. The microswitch is located on the inside of the safety key gap.
4. If it starts up, then you know that your safety key isn't functioning properly.

• Please contact our helpline via live chat or email, and we will be able to send you a replacement key. In the meantime, you can bend your current safety key into the correct shape in order that it presses against the microswitch.

This article covers how to check your battery and charger for your cordless lawnmower.

TABLE OF CONTENTS

• Charging the battery pack 
• Power indicator
• Low capacity info for Li-ion battery

Charging the battery pack 

To ensure the best performance, charge the battery completely before first use. Make sure the mains voltage is the same as rating label which is located on the charger. Remove the battery pack from the charger after it has been fully charged.

Process:

1. Connect the charger to a power supply. The red LED light on the charger will be on. 
2. To insert the battery pack into the charger, align the grooves on the battery pack with the raised ribs in the opening of the charger. Then press the battery pack downward with moderate force. (There is a carrying handle at the top of the battery pack. Lift the handle up for easy-transporting.) 
3. Once the battery pack is correctly located in the charger, the green LED light of the charger will flash continuously during normal charging, while the red LED light is still on.
4. When charging is complete, both the green and red LED lights of the charger will be on. 
5. If the red LED light flashes, this refers to poor connection between charger and battery pack. Check the adapter cable. It could also be a fault with the battery pack. If under warranty, the battery pack will need to be returned to customer service centre for repairs, or replaced.

Power indicator:

Indicator on battery:

1. When you push the power indicator button, the green LED lights will show the power remaining. 
2. When the battery pack over discharges or the power is very low, the red LED light will flash. 
3. When the battery pack temperature is exceeded, the red LED light will flash. Cool it down for 10~20 minutes. 
4. When there is a fault with the battery pack, the red LED light will flash. 
5. Once the battery pack is correctly positioned in the charger, the 4 green LED lights of the battery pack will flash to indicate the charging process. The green LED light of the charger will flash continuously during normal charging, while the red LED light remains on.

NOTE - low capacity info for Li-ion battery:

Unlike other battery pack types, lithium-ion battery packs deliver fade-free power for their entire run time. The tool will not experience a slow, gradual loss of power as you work. If the red LED on the battery pack begins to flash, the battery pack’s charge is below 1% capacity and should be recharged.

• Excessive vibration may be due to an unbalanced or damaged blade.

1. Please check that the blade is not damaged.  This could be caused by the blade coming into contact with an obstacle in the garden, if the blade is rusty or the lugs on the blade adapter has sheared off.

          If any of these are the case you will need to replace your blade - 

      If your blade is damaged and is also stuck in place, please try the following procedure:

1. Fix the blade in place using a block of some sort, ie.) a wood block, and wedge it in place so that the blade cannot move.
2. Use a socket wrench on the blade fixing bolt. Turn it anti-clockwise.
3. At first, apply as much force as possible, and then gradually unscrew the bolt.
4. Once the bolt has been removed you can then place the new blade onto the blade adapter and then tighten it into place using the blade bolt
   

• Ensure that your height adjustment lever is clear of debris or excess grass.
• If it is feeling stiff, spray on lubricant to help it move (ie.) WD40).
• If your problem persists, please contact us by phone or email.

You would need to check the connections between the height adjustment lever, rear axle and the connecting rod:

1. Pull the cutting height adjustment lever outwards. 
2. Move it forwards or backwards to select the desired cutting height. 
3. Return adjusting handle back into place. Make sure the lever is secured in position. From position 1 to position 7, the cutting height ranges from 25mm to 75 mm.

Note: The 32cm cordless mowers have 5 cutting positions; all other sizes have 7 cutting positions.

This article will cover the steps you must take while replacing your upper handle.

The upper handle on this machine is replaceable. Please order the part on our website or through our helpline.

Follow these instructions:

1. The two lower screws on the RH side of the handle - see image below. Gently push the two plastic parts around the handle apart.
2. Unscrew the lower screw on the LH side of the handle - see image below. Gently push the two plastic parts around the handle apart. 
3. The stop/start handle assembly should be free from the old handle, refit to new handle using instructions above in reverse.