Install: Over Temperature (TEM-PRO)

The inverter has shut down to protect its internal components after detecting an ambient temperature higher than 60℃.

The inverter will reduce power output as ambient temperature levels rise above 45℃ in order to attempt to avoid shutdown.

The temperature data included in the monitoring data is the IGBT temperature which is 20-50℃ higher than the ambient temperature.  It is normal that this monitored IGBT temperature can reach temperatures in excess of 85℃.

Possible causes are;

  • The airflow at the back-side of the inverter is blocked.
  • The ventilation around the inverter is not sufficient or the inverter is in direct sunlight.
  • The fans in the inverter are faulty.
  • The temperature detector in the inverter is faulty
  1. Remove any objects blocking the heat-sink
  2. If the inverter hangs outside in direct sunlight and the issue shows only on bright days, consider a roof construction.
  3. For larger inverters you can activate a fan test sequence to confirm the fans are operating correctly.
  4. If the external ambient temperature is not above 60C, turn the inverter OFF, wait 10 minutes and restart. If it does not restart, create a case to replace the inverter.

This is an inverter driven issue.

Issue Creation

If the inverter sends a single message with this type of alarm in a 24hr period an issue will be created.

Resolution:

If a 24hr period passes with good production, and not futher alarms, the issue will be automatically resolved.

Still need help? Please raise a case in Helios

How to Raise a Case