If your Tunturi J8F treadmill is not starting and displaying an error code 13, there may be a problem with the treadmill's control panel or other internal components.
Some potential causes for this problem include:
- The control panel may be faulty. If the control panel is not functioning properly, it may not be able to start the treadmill or display the correct error code.
- The wiring for the control panel or other components may be damaged or disconnected. Check the wiring to ensure it is secure and in good condition.
- The treadmill's motor or other internal components may be faulty. If the motor or other components are not functioning properly, the treadmill may not be able to start or operate correctly.
If you are unsure how to check for and address these potential causes, you may want to consult the user manual for your Tunturi J8F treadmill or contact the manufacturer for assistance.
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