Loose connection — Heating failure or fire risk

What does Loose connection mean?

If screws are not tightened properly, or if the wire is not connected securely to the terminal block, it can cause connection errors. This may result in product damage, heating failure, or even fire.

• Incomplete screwing of wire terminals
• Wire not securely attached to terminal block
• Loose connection due to screw abrasion

Click steps to track your progress.

1. 1

   Ensure all wire connections to the terminal block are secure.

2. 2

   Check that screws are tightened appropriately.

3. 3

   Verify the wire color matches the corresponding screw color.

4. 4

   Confirm the strain relief screw is tightened.

5. 5

   Ensure the power cord is in the correct position.