Why Won’t My DeWalt Chainsaw Start? Solving the Mystery

Why Won't My DeWalt Chainsaw Start?

Are you struggling with a DeWalt chainsaw that refuses to start, hindering your woodworking project? You are not alone. Many users face this issue.

If your Dewalt chainsaw won’t start, the most common reason is a dead or incorrectly installed battery. Ensure your chainsaw battery is properly connected and charged for optimal performance.

In this comprehensive guide, we will explore various possible reasons why your DeWalt chainsaw won’t start and offer solutions to get it up and running again.

Why Won’t My DeWalt Chainsaw Start? Common Reasons and Fixes

While it can be frustrating when your DeWalt chainsaw doesn’t start, identifying the root cause of the issue can help you find an effective solution. Below, we outline some common issues and how to fix them:

Battery and Power Issues

– Dead Battery

  • Symptoms: No response when attempting to start the chainsaw.
  • Solution: Ensure the battery is fully charged before attempting to use the chainsaw again.

– Faulty Battery Connections

  • Symptoms: Inconsistent power delivery.
  • Solution: Check the battery connections for any corrosion or dirt and clean them as necessary.

Fuel and Oil Issues

– Stale Fuel

  • Symptoms: The chainsaw sputters or refuses to start.
  • Solution: Empty the old fuel and refill with fresh fuel.

– Oil Viscosity

  • Symptoms: The chainsaw struggles to start, especially in cold weather.
  • Solution: Use oil with appropriate viscosity as recommended in the user manual.

Ignition and Spark Plug Issues

– Damaged Spark Plug

  • Symptoms: The chainsaw does not start or has a weak spark.
  • Solution: Check the spark plug for any signs of wear or damage and replace it if necessary.

– Ignition Coil Failure

  • Symptoms: No spark is produced to ignite the fuel.
  • Solution: Inspect the ignition coil and replace it if found to be faulty.

Why is My Dewalt Battery Chainsaw Not Cutting? Top-Rated Reasons

If your DeWalt battery chainsaw isn’t cutting effectively, this could be due to a few reasons. Let’s get into some possible causes and the corresponding fixes for this issue.

Blade and Chain Issues

Dull Blade

Symptoms: The chainsaw struggles to cut, or the cutting process takes longer than usual.

Solution: Sharpen the chainsaw blade using a file or replace it if it’s excessively worn.

Incorrect Chain Tension

Symptoms: The chainsaw either doesn’t cut at all, or the cutting process is inefficient.

Solution: Adjust the chain tension as directed in the user manual. It should be tight on the guide bar, but still able to turn freely.

Chain Installed Backwards

Symptoms: The chainsaw doesn’t cut despite the motor running properly.

Solution: Ensure the chain is installed correctly, with the sharp edge of the cutters facing forward.

Lack of Lubrication

Symptoms: The chainsaw heats up quickly, and the cutting process takes longer than usual.

Solution: Regularly clean and oil the chain to ensure smooth operation and prolong the lifespan of the tool.

Why is my electric chainsaw not starting? 5 Step Reasons

If your electric chainsaw is not starting, it could be due to several reasons ranging from power supply issues to mechanical malfunctions. Let’s explore some common problems and their solutions.

Step 1: Check the Power Source

  • Ensure the chainsaw is properly plugged into an electrical outlet. Try another appliance in the same outlet to verify it’s working.

Step 2: Inspect the Power Cord

  • Look for any signs of damage, fraying, or breakage. If you find any, replace the cord.

Step 3: Examine the Switch

  • Test the chainsaw’s power switch to ensure it’s functioning correctly. If the switch feels loose or doesn’t click into place, it could be faulty and need replacement.

Step 4: Check the Fuse or Circuit Breaker

  • If the chainsaw still doesn’t start, check the fuse or circuit breaker on the chainsaw or in your home’s electrical panel. If the fuse is blown or the breaker tripped, replace the fuse or reset the breaker.

Step 5: Inspect the Motor Brushes

  • If your electric chainsaw refuses to start, the motor brushes could be worn out. These can be replaced by a professional.

Step 6: Seek Professional Help

  • If all else fails, seek help from a certified technician. This could be a sign of a more serious internal problem requiring professional repair.

Dewalt Chainsaws: Common Oil Problems and Solutions

Here’s a chart summarizing common oil-related problems in DeWalt chainsaws and their solutions:

Oil ProblemsSymptomsSolutions
Inadequate OilChainsaw heats up quickly, longer cutting processCheck oil levels regularly and refill as necessary
Improper Oil TypeChainsaw struggles to start, especially in cold weatherChainsaw struggles to start, especially in cold weather.
Oil Pump FailureNo oil was delivered to the chainInspect the oil pump and replace it if faulty.
Oil LeakOil found under chainsaw when not in useCheck for visible leaks, replace damaged seals or gaskets
Clogged Oil FilterInefficient chainsaw operation, quick wear-outRegularly clean or replace oil filter for smooth oil flow

Dewalt 60V Chainsaw Problems: Simple Steps to Follow

The DeWalt 60V chainsaw, known for its powerful cutting capability and durability, can encounter certain issues. Let’s delve into some common problems and their solutions:

Battery Drain

  • Symptoms: The chainsaw battery drains quickly or doesn’t hold a charge.
  • Solution: This could be a sign of a faulty battery. Try charging it fully and if the problem persists, consider replacing the battery.


  • Symptoms: The chainsaw becomes hot quickly during operation.
  • Solution: Overheating can be due to several issues such as a dull blade or lack of lubrication. Check the blade, chain tension, and oil levels. If the chainsaw continues to overheat, it’s advisable to consult a professional.

Excessive Noise or Vibration

  • Symptoms: The chainsaw makes more noise or vibrates more than usual.
  • Solution: Excessive noise or vibration could indicate a loose or damaged part. Always ensure that all components are properly secured and replace any damaged parts to prevent further issues.

Difficulty in Starting

  • Symptoms: The chainsaw doesn’t start or needs several attempts to start.
  • Solution: Check the battery and spark plug and ensure that the chainsaw has enough oil. If it still doesn’t start, consult with a certified technician.

How Do You Keep a Dewalt 20V Chainsaw from Leaking Oil? Possible Issues

A Dewalt 20V Chainsaw may experience oil leaks for a variety of reasons, such as worn-out seals, a loose oil cap, or even a damaged oil tank.

Addressing this issue requires careful inspection and, in some cases, replacement of parts. Here are some steps to help prevent your chainsaw from leaking oil.

  1. Inspect and Tighten the Oil Cap: Over time, the oil cap may become loose and cause leaks. Ensure it’s firmly in place after every refill to avoid spillage.
  2. Check the Oil Tank: Look for any cracks or signs of wear in the oil tank. If the tank is damaged, it may need replacing.
  3. Replace Worn-Out Seals: Seals can wear out over time, allowing oil to seep out. Regularly inspect these components and replace them as necessary.
  4. Clean the Oil Filter: A clogged oil filter can cause pressure build-up, forcing oil out of the tank. Regularly clean the filter to maintain proper oil flow.
  5. Monitor Oil Levels: Don’t overfill the oil tank, which can lead to leaks. Use the gauge to ensure you’re not exceeding the recommended oil level.

Maintenance Tips for a Smooth-Running DeWalt Battery Chain Saw

To prevent future startup issues with your DeWalt chainsaw, consider the following maintenance tips or repairing tips for Dewalt chainsaw:

  • Regularly check the battery and ensure it’s charged before use.
  • Replace the fuel and oil periodically to prevent them from becoming stale.
  • Inspect the spark plug and ignition coil for any signs of wear or damage.
  • Follow the manufacturer’s guidelines or DeWALT 20V chainsaw manual or DeWALT manual for storage and maintenance.


A DeWalt chainsaw refusing to start can be a minor setback in your project, but with the right knowledge and tools, it doesn’t have to be a significant hindrance. 

By identifying the potential issues and applying appropriate solutions, you can get your chainsaw back to its optimal functioning state. Remember to consult the user manual or reach out to DeWalt customer service for further assistance.

Frequently Asked Questions

How do I check the battery health of my DeWalt chainsaw?

You can check the battery health by examining the battery indicator on the chainsaw or the battery itself for any signs of damage or wear.

Can I use any type of oil in my DeWalt chainsaw?

It is recommended to use the type of oil specified in the DeWalt chainsaw’s user manual to ensure optimal performance. But you can use any kind of bar and oil for lubrication.

How can I know if the spark plug is faulty?

The common signs of bad spark plugs often include difficulties during start-up, rough idling, slow acceleration, decreased fuel efficiency, engine misfires, and engine knocking.

How often should I replace the fuel in my chainsaw?

As a general guideline, it is good practice to replace the fuel every 30 days to prevent it from becoming stale and affecting the chainsaw’s performance.

How to Fix DEWALT 20v Pole Saw Problems?

If your pole saw’s engine is not starting or running rough, it could be due to a fouled spark plug.


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