Fault — the inverter cuts its output and the red LED stays solid until the fault is cleared.
DSP&MCU protocol incompatibility — Fault code 18 shown on the display with the fault icon on: DSP&MCU protocol incompatibility.
Cause: DSP&MCU FW incompatibility.
Please contact your installer.
Source: Voltronic manual, p.52
Mcu&Dsp ver error — Fault code 18 shown on the display with the fault icon on: Mcu&Dsp ver error.
Cause: Firmware version not compatible.
please contact your installer.
Source: Voltronic manual, p.50
Price incl. VATAED 5,847
It depends on the model — 2 devices use code 18. On the InfiniSolar 15KW it means: DSP&MCU protocol incompatibility. The card for each model on this page gives its exact meaning and fix.
18 is a fault code: the inverter cuts its output and the red LED stays solid until it is cleared.
Please contact your installer. The exact steps for each affected model are listed on this page.
18 is in the "Fault" class on the InfiniSolar 15KW: 27 of the 42 codes documented for it.
18 is in the "Fault" class on the InfiniSolar TX-PA 30KW: 55 of the 76 codes documented for it.
Compiled from official Voltronic user manuals. Always consult your device manual and a qualified technician before performing repairs.