How do I fix DC Overvoltage Error on a SolarEdge?

Turn OFF inverter ON/OFF switch. After 5 minutes verify LCD shows low safety voltage (1V per optimizer) Then: Check which string is malfunctioning and verify optimizer connections

SolarEdge

2xF

DC Overvoltage Error

DC overvoltage detected. SolarEdge normally eliminates these via optimizers.

Common causes

DC overvoltage in systemPower optimizer malfunction

What to check

STEP 1

Turn OFF inverter ON/OFF switch. After 5 minutes verify LCD shows low safety voltage (1V per optimizer)

STEP 2

Check which string is malfunctioning and verify optimizer connections

Escalate if

Fault persists after re-commissioning

Need full interactive diagnosis?

Faultpath walks you through decision trees, fault codes, and commissioning — built for solar & battery engineers.

Open Faultpath

More SolarEdge fault codes

Broken or Unconnected Temperature Sensor

18x / F-Isolation

DC Isolation Fault (Ground Leakage)