What to do if my Epsolar LS1024RP digital tube displays “H” with red slowly flashing?
- SSean MendozaAug 6, 2025
If the heat sink of your Epsolar Controller exceeds 85 degrees Celsius, the controller will automatically cut off the input and output circuit. Once the temperature drops below 75 degrees Celsius, the controller will resume normal operation. This issue is caused by the controller's temperature being too high.








