Fronius · Primo GEN24
This status code, indicated by a flashing red operating LED on the Fronius Primo GEN24 inverter, signifies that a device within the Wired Shutdown (WSD) chain has interrupted the signal line. This can occur if a surge protection device (SPD) has tripped, the factory-installed bypass has been removed, or a trigger device is not properly installed.
Click steps to track your progress.
If an SPD surge protection device has tripped, the inverter must be repaired by an authorized specialist.
Install the bypass device that was originally installed ex works, or install a new trigger device into the WSD chain.
Turn the WSD (wired shutdown) switch to position 1 to configure the inverter as the WSD primary device.
Ensure all installation and connection of an SPD surge protection device is carried out by Fronius-trained service personnel, strictly adhering to technical specifications and safety rules.