Chainsaw Power Tool

Chain saw won’t start because of no spark, no fuel, or bad compression. Check spark plug, fuel, and air filter.

Chainsaw won’t stay running
Possible causes
Low oil level
Spark plug not firing
Carburetor not adjusted correctly

Chain keeps coming off chainsaw because of loose or worn-out chain, bar nuts too tight, bar rails bent or damaged, or incorrect chain type.

Incorrect chain tension, worn or damaged chain, or a loose bar can cause a chainsaw chain to keep coming loose.

Incorrect chain tension, dull or damaged chain, worn or damaged bar, loose bar nuts, or a worn sprocket can cause a chainsaw chain to keep coming off.

Chain keeps coming off chainsaw? Check chain tension, bar nuts, and guide bar alignment.

Chain keeps falling off chainsaw? Check for a loose or missing chain tensioner, damaged or worn chain links, or a bar that is bent or out of alignment.

Chainsaw blade keeps coming loose

Overtightened or loose bolts
Worn-out or damaged bolts
Bent or damaged chainsaw bar

Possible reasons why your electric chainsaw stopped working

Low battery. Make sure the battery is charged and properly connected to the chainsaw.
Dirty or damaged chain. Clean or replace the chain if it is dirty or damaged.
Clogged air filter. Clean the air filter if it is clogged.
Malfunctioning motor. Take the chainsaw to a qualified technician for repairs.