If your Sun Joe corded electric chainsaw or pole saw will not start, first check the power connection and starting sequence.
If the motor runs but the chain does not move, check the chain tension and the condition of the guide bar + chain.
Article scope: This guide is for corded electric Sun Joe chainsaws + pole saws. Battery-powered models use different starting and troubleshooting procedures.
If the Motor Will Not Start
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Check the Power Connection
Make sure the extension cord is properly connected to the saw's power cord or power cord receptacle.
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Check the Outlet
Make sure the extension cord is connected to a live 120V outlet.
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Use the Correct Starting Sequence
Fully depress and hold the safety lock button before squeezing the ON/OFF trigger switch.
The official manuals for Sun Joe electric pole saws such as SWJ800E, SWJ803E, and SWJ807E list the power connection and safety-lock + trigger sequence as the primary checks when the saw motor fails to start.
If the Motor Runs but the Chain Does Not Move
Unplug the saw before making any adjustments, inspections, maintenance, or repairs.
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Check the Chain Tension
A chain that is too tight can prevent the chain from moving properly.
Check and adjust the chain tension according to the instructions in the operator's manual for your exact model.
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Inspect the Guide Bar + Chain
Check the guide bar and chain for damage.
The official troubleshooting instructions identify a damaged guide bar or chain as another possible reason the motor may run while the chain does not turn.
What If the Bar + Chain Are Hot or Smoking?
Depending on the model, the official manuals identify the following conditions:
- Chain tension is too tight
- Chain oil tank is empty
- Lubrication holes are blocked
Check the chain tension and lubrication instructions for your exact model before continuing to use the saw.
Additional Checks on Some Electric Chainsaw Models
Some standalone electric chainsaw manuals, including SWJ698E and SWJ701E, list additional possible no-start causes such as a damaged extension cord or power cable.
Because troubleshooting details vary by model, use your exact model number when checking the operator's manual.
What About the Chain Brake?
The operator's manual troubleshooting tables for the Sun Joe electric chainsaw + pole saw models covered by this article do not instruct customers to reset a chain brake as the standard correction for a saw that will not start or a chain that will not move.
Follow the starting and chain troubleshooting procedure provided for your exact model instead.
Still Not Working?
If the saw is correctly connected to power, the proper starting sequence is being used, and the chain tension and guide bar + chain have been checked but the problem continues, contact Shop Joe Customer Support. Have your complete model number and serial number available.
Check Your Product Manual
For the starting, chain-tension, lubrication, maintenance, and troubleshooting instructions specific to your saw, visit the Shop Joe Product Manuals page and search using your complete model number.