What to do if my opti-solar SP5000 Power-M Inverter buzzer beeps continuously and the red LED is on?
- SStephen PerkinsAug 4, 2025
If the buzzer beeps continuously and the red LED is on for your opti-solar Inverter, it could be due to several reasons. It might be because the inverter is overloaded (by more than 110%), there's a short circuit in the output, the internal converter's temperature is too high (over 120°C), the battery voltage is too high, there's a fan fault, or the output is abnormal (voltage lower than 190Vac or higher than 260Vac). Try reducing the connected load, checking the wiring, ensuring proper air flow, and verifying the battery specifications. Replacing the fan might also help.