M
Mary GriffinAug 10, 2025
Why is my SMA SUNNY TRIPOWER 15000TL Economic Excellence Inverter showing a defective varistor?
- AAlison BarronAug 10, 2025
Varistor failure in your SMA Inverter is often due to factors like temperature, age, or induced overvoltages that affect all varistors similarly. The defective varistor needs replacement, and SMA Solar Technology AG suggests replacing all of them. You should order original replacement varistors directly from SMA Solar Technology AG. If the issue persists, it's likely a different problem; proceed to step 8.