Ridgid Cordless Circular Saw Not Working: My Easy Fixes

I am Maruf. I work in a hot Florida shop. Wood dust is everywhere down here. My saw died on me last Tuesday.

I had a big pile of pine to cut. The dead tool made me very mad. But I took a deep breath first. I put the saw flat on my bench.

I found the real problem very fast. I will show you my top shop fixes. We will save your dead tool today. Let us get to work on it right now.

Why Is My Ridgid Cordless Circular Saw Not Working?

A dead saw is a huge pain. You just want to cut wood and go home. I fix a lot of tools in my shop. I see this issue all the time.

Most bad parts take just five minutes to fix. You do not need to buy a new saw. We will check the simple parts first. Let us get your tool running great again.

The Battery Needs More True Power

We blame the power tool way too fast. The battery pack is often the real issue. I used to make this bad mistake. I put a small battery on my big saw.

The blade spun super fast in the open air. But it stopped dead right in the wood. A saw needs a ton of deep power. A small battery gets scared and shuts off.

Look at your battery pack right now. Is it small and very thin? Swap it out for a six amp battery. Make sure it has a full fresh charge.

Push it deep into the base of the tool. Try to cut the wood one more time. This easy fix works so very often. It gives the strong motor the power it craves.

The Trigger Switch Is Full Of Dirt

My shop has thick dust all over the place. It falls on my hair and my clothes. It also gets deep inside my power tools. Your saw has a small switch near the trigger.

Metal parts must touch to start the main motor. But brown dust loves to block that tiny gap. Power cannot flow past the thick dirt. The saw will just sit there dead.

Use High Pressure Air For Dust

Hot wet air makes the dust very sticky. It forms a hard paste on the switch parts. I take apart dead saws all the time. The switch is packed full of brown dirt.

You must take the battery off the tool first. This keeps your hands safe from bad cuts. Grab your shop air hose right now. Point the air nozzle right at the tool trigger.

Blast the air deep into the tight plastic gaps. A big cloud of dust will fly out fast. Keep blowing until the dust is all gone. Try to start the tool up once more.

Worn Out Motor Brushes Will Fail

Old saws have a brushed motor hidden inside. Small blocks of carbon live in the motor. They rub on the fast spinning metal parts. They send power to make the saw cut.

But they wear down just like a pencil tip. If they get too short, the tool just dies. I can smell hot plastic in the air sometimes. That is a sign of bad carbon brushes.

How To Change Your Carbon Brushes

Look at the back end of your saw motor. You will see two round black plastic caps. Use a flat coin to unscrew them slowly. Pull the small spring and block out.

Is the black block very short now? Is the tiny wire broken or dark? You must buy a new set of brushes. They cost just a few dollars online.

Drop the new ones right in the round holes. Put the black plastic caps back on tight. Your saw will run like brand new. It is a very cheap and fast repair.

The Brushless Motor Control Glitch

New saws use a smart brushless motor. They have tons of power for deep wood cuts. But smart boards can glitch and fail hard. I have a new saw on my bench now.

I pull the tool trigger to start it up. It spins for one second and then dies. I pull the trigger a second time. It does the exact same bad thing.

When The Smart Board Fails

This is a very sad shop problem to have. The tool has a tiny computer inside the handle. Sometimes it gets too hot or wet from rain. The board thinks the saw is stuck hard.

It cuts the power down to save the motor. You cannot fix this smart board with air. You must use your lifetime tool service plan. Take it to a local tool repair shop.

Hot Motors And The Thermal Shutoff

Cutting wet wood is very hard work. I cut thick oak boards all last summer. My saw got super hot to the touch. The tool just shut down in my bare hands.

Red lights flashed fast on the tool base. The saw was not broken at all. It was just trying to stay safe. It works just like a safe house breaker.

Cool Down Your Hot Power Tool

New tools have safe heat sensors inside. When the motor gets hot, power stops. Look at the red lights on the tool. If they flash, the tool is too hot.

Put the hot saw in the cool shade. Drink some cold water and wait a bit. Do not force a hot tool to run. I point a small fan at my saw.

It cools the hot metal parts down fast. Wait a full hour for the best fix. Put a fresh battery in and cut again. The tool will run fine when it is cold.

The Wood Pinches The Saw Blade

We tend to think too hard on repairs. We look for broken wires right away. But wood can just trap the metal blade. Wood has tight tension deep inside it.

The cut gap closes up behind the blade. The wood grabs the blade and holds on tight. The strong motor tries hard to spin. But the wood grip is way too tight.

Stop The Bind In Your Wood Cut

The saw stops fast to save the main motor. Support your long wood boards on sawhorses. Do not let the gap pinch the blade down. Pull the saw back out of the wood cut.

Squeeze the trigger in the open air. Does the blade spin fast and free? If it does, your tool is just fine. Keep your cuts straight to stop the wood bind.

Read More: Ryobi Circular Saw Blade is Not Spinning

Final Thoughts From My Wood Shop

A dead saw ruins a good work day. But you do not have to be sad. I have saved tons of tools from the trash. Start with the easy checks I shared today.

Look at your battery size and charge state. Blow the thick dust out of the switch. Look in the side vents for wood chips. Most fixes take less than five minutes.

Use your eyes to spot bad parts fast. Use your nose to smell burnt plastic. You know your own power tools the best. I hope my real shop tips help you fix it.