Innov-is A150

FAQs & Troubleshooting

FAQs & Troubleshooting

"The safety device has been activated." appears on the LCD.



This message is displayed when the motor locks due to tangled thread or for other reasons related to thread delivery..




Clean the race to remove the tangled thread. After cleaning the race, insert the bobbin case properly. If the needle is bent or broken, replace the needle. Then, thread the upper and bobbin threads properly, and continue the operation.



If this error message appears in the LCD with the occurrence of one of the following symptoms, follow the procedure below to solve the problem.


Symptom 1: The machine rattles and then stops just after sewing is started.



  • The upper thread is not threaded correctly.
  • The thread take-up lever is not threaded.
  • When the machine stops just after sewing is started, the upper thread may not be threaded correctly.


  • Thread the upper thread again correctly.




Symptom 2: The upper thread is tangled, for example, in the race, or fabric is caught in the machine.



  • Thread is tangled below the needle plate.


  • Remove the fabric and reset the thread and bobbin.




Symptom 3: The needle breaks, or the needle bends and thus hits the needle plate.



  • You have not used the right combination of fabric, thread and needle.


  • Choose a thread and needle that are appropriate for the type of fabric.




Symptom 4: The fabric does not feed.

Cause 1


  • The thread has become clogged as the stitch is too fine.
Remedy 1


  • Lengthen the stitch length.



Cause 2


  • Feed dog is in down position.
Remedy 2


  • Raise feed dog.


If your question was not answered, have you checked other FAQs?

Have you checked the manuals?

If you need further assistance, please contact Brother customer service:

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Innov-is A150

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