Fin overheat

What does H/Sink O/Temp mean?

This fault indicates that the inverter's cooling fin has overheated, activating an internal overheat sensor and stopping the inverter output. This condition signifies either insufficient cooling, high ambient temperatures, or a blocked cooling path, posing a risk of damage to the inverter's power components.

• Ambient temperature around the inverter exceeds specified operating limits.
• Cooling fins are clogged with dust or debris, restricting airflow.
• Reduced cooling fan effectiveness (though Fan Failure has its own code, general cooling issues can contribute).

Click steps to track your progress.

1. 1

   Verify the ambient temperature in the inverter's operating environment is within the manufacturer's specifications.

2. 2

   Inspect the cooling fins and air intake/exhaust vents for dust, dirt, or other obstructions and clean them thoroughly.