Cordless Chainsaw Won’t Start (Explained)

If your cordless chainsaw fails to start, the first things to check are the battery charge level, connections, and placement. Make sure the battery is fully charged and clicking securely into place. Next, inspect the fuel and oil lines for any clogs that could prevent starting. It’s also important to clean or replace the air filter if it’s dirty. Be sure the chain brake is disengaged so the chain can run when starting. Use the choke to provide extra fuel even if the engine is warm. Check the spark plug condition and gap, and listen for the fuel pump to prime when turning on the chainsaw. Proper chain tension and a clear guide bar are also necessary for starting. If the chainsaw still won’t start after checking all these items, it likely requires servicing by a qualified technician to get it running again.

The Author

At the end of the day, no one wants to arrive home and find that their chainsaw won’t start.

It’s the last thing you want to experience.

We have some tips and tricks to diagnose and fix your cordless chainsaw.

This is a common problem, and we hope this post will help you diagnose and fix the problem.

Reasons Why Your Cordless Chainsaw Won’t Start

Battery not charged, properly connected, or dead

If your battery chainsaw doesn’t start, it could be due to the battery not being charged, properly connected, or dead.

To check if the battery is charged, use a voltmeter to test the voltage at the battery terminals.

If the voltage is below 12.6 volts, the battery will likely die and need to be replaced.

If the voltage exceeds 12.6 volts, check to see if the battery is properly connected to the chainsaw.

The positive and negative terminals should be clean and free of corrosion.

If the terminals are corroded, clean them with a wire brush and reconnect the battery.

If the battery is still not starting the chainsaw, it may need to be replaced.

Damaged switch and battery connectors

If your battery chainsaw doesn’t start, it could be due to a damaged switch and battery connectors.

Check whether the switch is damaged or the battery connectors are loose.

If the switch is damaged, you’ll need to replace it. If the battery connectors are loose, you’ll need to tighten them.

chain clutch is engaged

When the chain clutch is engaged, it prevents the chain from moving, which in turn prevents the saw from starting.

To fix this, you’ll need to disengage the chain clutch.

To do this, simply turn the lever that controls the chain clutch to the “off” position.

Once the chain clutch is disengaged, the chain should start moving, and the saw should start up.

Burned out motor

If your battery chainsaw doesn’t start due to a burned-out motor, you’ll need to replace the motor.

This is a relatively hard repair that you can’t do yourself. Hire a technician. You will need to purchase a new motor.

You can find replacement motors online or at a hardware store.

Once you have the new motor, simply remove the old one and install the new one in its place.

Be sure to follow the manufacturer’s instructions when doing this.

lose charge when stored

Chainsaw batteries lose charge when stored for a long time. First, check the battery to see if it is properly charged.

If the battery is low on power, try charging it for a few hours before attempting to use the chainsaw again.

Finally, if all else fails, you may need to take the chainsaw to a professional for further diagnosis and repair.

Origin of the problem

Issues with chainsaws are very dicey; don’t rush to replace the chainsaw parts when the chainsaw appears to be dead.

Spend ample time crosschecking the different body parts to be sure that they are not beyond repairs.

Your chainsaw can behave like this if you stress the battery and the motor on a regular basis.

Lubrication is a key contributor to an effective chainsaw, so lubricate it properly and make sure that it is not overstressed.

The chainsaw exerts much energy in moving an unlubricated chainsaw; hence, your chain should be sharp.

The chainsaw can experience overheating if the chain is dull.

When the chain is dull, the motor of the chain will experience immense stress leading to the imminent death of the motor.

However, you shouldn’t meddle with the life of your chainsaw; hence, don’t rush over the troubleshooting steps.

When your chainsaw sleeps or withers away in a coma, one of the first steps to take is to detect the instigator of the anomalies.


You should be watchful of the battery of your chainsaw; Spend a few minutes to check and be sure that the battery is fully-charged before concluding that it’s dead.

If it’s dead, then it would become irresponsive despite the that it’s fully charged.

Check for another array of batteries because this is a key anomaly that you would experience on your chainsaw.

There is a limitation to the life of the battery, and it might appear as though the charges are building, but this is just a mirage because when it develops issues, it will no longer hold charges.

This helps to extend the battery life of the chainsaw.

Also, search the battery’s attachment points.

You will surely notice some unclean materials that will activate a bad link and interrupt control.

You can circumvent the unreliable battery by plugging the chainsaw into a power source close to you.

If this succeeds, then the next thing is to expect the chainsaw to jerk into motion; the battery is certainly a concern.

A short fuse

A fuse may be exploded in the next form of an issue.

The user manual is the best reference for where to find the fuses as well as the ideal fuses for the chainsaw. 

Without smashing the bank, you will typically easily find substitutes in shops.

Also, verify that you have not left a protection switch in service.

If it is pressing or closed, certain saws are endowed with switches that keep it from the beginning.

Why not suspect the switch?

The starter switch is normally another culprit.

Typically, you may call for or request new parts while repairing defective switches easily.

The best approach to the issue 

On the whole, the best option is for you to call a professional close to you, as with any topic outside your capacity.

Whether the control, Fuses, and switches have been checked thoroughly.

Most producers give outstanding warranties and warranties to use it as long as you can.

Do not fiddle with a chainsaw if you lack the professionalism or wherewithal to cut things apart and properly congregate them.

A bad saw in your tool shed isn’t anything you like.

Maintenance of Chainsaw

A chainsaw is made of several moving parts inside the motor, much like every other power tool.

Many individuals prefer to neglect repair and treatment, assuming that high-quality chainsaws are designed to function effectively.

Using the chainsaw over time will bring wear to the pieces that should be tested daily.

  • Making the required modifications to tighten nuts and chain tension
  • Clean and extract all the required components from the garbage, sawdust, etc.
  • Inspect the sharpness of the blade of a cord
  • Ensure all moving components, such as gears and the chain, are properly lubricated as needed.

Final word

Hopefully, when your chainsaw is in a coma, our few suggestions can allow you to overcome some of the simple issues.

Keep your repairs correct, as it serves to offer an appropriate lifetime for your saw.

Peruse the user guide keenly to decipher how to maintain the chainsaw entirely, the battery requires excellent storage and charging.

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