Electric Chainsaw Doesn't Run

Check for Jams

• Often, a chainsaw will stop running when a small branch or wood chip gets lodged in the bar or in the drive system. However, before checking for any jams, always unplug the chainsaw from the extension cord. Unscrew the bar and chain cover, using a wrench. Take the cover off, and slide the bar and chain off the drive sprocket. Separate the bar and chain, and check the bar for wood chips lodged in the two slots. Spin the drive sprocket with your hand. If it doesn't spin, the clutch or crankshaft may be damaged. Allow a professional to fix these problems.

Check the Bar

• The guide bar's shape and composition allow the chain to run at such high speeds. If this metal bar gets damaged in any way, the chain may spin poorly, causing damage to other areas, such as the clutch or drive sprocket. After every use of the electric chainsaw, take the bar and chain off the engine. Clean them with a brush and rag, and inspect them for any damage. Check the tip of the bar especially, since most of the pressure occurs there. If the bar gets bent or warped or the rails get rounded, replace the bar.

Check the Electrical Cord

• If the drive systems all check out with no damage, inspect the electrical cord on the chainsaw. Look closely at the metal prongs, and make sure they aren't bent, chipped or damaged in any way. If they don't work properly, the electrical current will get lost before it reaches the chainsaw. Check the insulation on the cord to make sure it isn't fraying or damaged. Take the chainsaw to a professional if the cord or electrical systems show signs of damage.

Check the Extension Cord

• The extension cord used with an electric chainsaw must meet the chainsaw's electrical specifications. If the cord you are trying to use doesn't match this criteria, the electrical current won't reach the engine. Check your electric chainsaw's operator's manual for exact extension cord specifications. If the cord meets the chainsaw's specs, try plugging the extension cord into another device to make sure the extension cord isn't malfunctioning. Replace the extension cord if necessary, and also try several outlets.