OH-Trip (Overtemperature, heat sink)

What does 50 mean?

This fault indicates an overtemperature condition detected at the heat sink of the device. This implies insufficient heat dissipation, potentially due to blocked airflow, a faulty cooling fan, or excessive ambient temperature, which can lead to thermal shutdown and component damage.

1. 1

   Verify cooling fan operation by observing its rotation and airflow direction.

2. 2

   Measure ambient temperature around the device enclosure — ensure it is within specified operating limits.

3. 3

   Clear any dust or debris from the heat sink fins and cooling air vents using compressed air.