Over Temperature Fault

What does 08 mean?

This fault indicates that the controller's internal temperature, typically measured at the heatsink, has exceeded its safe operating limit. This is often caused by insufficient cooling. Prolonged operation at high temperatures can severely degrade the lifespan of the controller's electronic components.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Check if the cooling fan is blocked, dirty, or non-operating and replace if necessary.