Applicable Systems
Symmetra LX
Symptoms
The UPS is experiencing thermal overload. The internal temperature has exceeded safe limits.
Possible Causes
- Sustained overload generating excessive heat
- Cooling system inadequate
Troubleshooting Steps
- Step 1: Check the load level on the UPS
Load exceeds the rated capacity - Step 2: Reduce the load and improve cooling
Temperature drops to safe levels
How to Reset
To reset: Reduce the load and improve ventilation, then the alarm will clear.
Source: APC Smart-UPS User Manual, Schneider Electric/APC
Category: UPS