17Fault

Voltronic inverter error 17

DSP and MCU Com. Loss

Fault — the inverter cuts its output and the red LED stays solid until the fault is cleared.

The exact meaning depends on your model:

InfiniSolar WP LV 12KW Premium

InverterFault

What it means

DSP and MCU Com. Loss — Fault code 17 shown on the display with the fault icon on: DSP and MCU Com. Loss.

Cause: DSP and MCU Com. Loss.

How to fix it

  1. Restart the unit.
  2. If the fault happens again, contact your installer or the repair centre.

Source: InfiniSolar-WP-LV-12KW-Premium-manual.pdf, p.52

InfiniSolar 15KW

InverterFault

What it means

DSP&MCU communication loss — Fault code 17 shown on the display with the fault icon on: DSP&MCU communication loss.

Cause: Internal components failed or FW update failed.

How to fix it

Please contact your installer.

Source: InfiniSolar-15K-manual-20200313.pdf, p.52

InfiniSolar E 5.5KW

InverterFault

What it means

Communication with the main and secondary controllers is interrupted — Fault code 17 shown on the display with the fault icon on: Communication with the main and secondary controllers is interrupted.

Cause: Communication with the main and secondary controllers is interrupted.

How to fix it

  1. Check if the impedance between positive and negative poles to the ground is greater than 1MΩ.
  2. If the impedance is lower than 1MΩ, please contact your installer.
  3. Please disconnect AC breaker first and then disconnect DC breaker.
  4. After LCD screen is completely off, turn on DC breaker.
  5. Until it shows "No Utility" in LCD display, turn on AC breaker.
  6. After 300 seconds, the system will automatically connect to the grid.
  7. If error message remains, please contact your installer.
  8. Check if the connection between battery and inverter is good.
  9. Make sure battery condition is ok.
  10. Then, restart the inverter.
  11. If error message remains, please contact your installer.
  12. Remove exessive loads.
  13. Be sure the total power consumption of the connected loads are less than that of the maximum which this inverter can support.
  14. Then, restart the inverter.
  15. Check if battery cable is connected firmly.
  16. If error message remains, please contact your installer.
  17. Remove exessive loads.
  18. Then, restart the inverter.
  19. Turn off the inverter.
  20. Disconnect AC circuit breaker first.
  21. Then, disconnect DC circuit breaker and then disconnect the loads.
  22. Please check if load circuit is ok.
  23. After removing the error, turn on the PV DC.

Source: InfiniSolarE-5.5KW-manual.pdf, p.44

InfiniSolar 2KW/3KW

InverterFault

Also applies to:InfiniSolar 2KWInfiniSolar 3KW

What it means

Communication with the main and secondary controllers is interrupted — Fault code 17 shown on the display with the fault icon on: Communication with the main and secondary controllers is interrupted.

Cause: Communication with the main and secondary controllers is interrupted.

How to fix it

  1. Please disconnect AC breaker first and then disconnect DC breaker
  2. After LCD screen is completely off, turn on DC breaker. Until it shows "No Utility" in LCD display, turn on AC breaker. After 300 seconds, the system will automatically connect to the grid
  3. If error message remains, please contact your installer.

Source: InfiniSolar-2KW3KW-manual.pdf, p.48

InfiniSolar TX-PA 30KW

InverterFault

What it means

Mcu&Dsp com loss — Fault code 17 shown on the display with the fault icon on: Mcu&Dsp com loss.

Cause: Firmware version not compatible.

How to fix it

please contact your installer.

Source: InfiniSolar-TX-PA_manual.pdf, p.50

ESS510

Energy storage systemFault

What it means

Communication with the main and secondary controllers is interrupted — Fault code 17 shown on the display with the fault icon on: Communication with the main and secondary controllers is interrupted..

Cause: Communication with the main and secondary controllers is interrupted.

How to fix it

  1. Please disconnect AC breaker first and then disconnect DC breaker.
  2. After LCD screen is completely off, turn on DC breaker.
  3. Until it shows "No Utility" in LCD display, turn on AC breaker.
  4. After 300 seconds, the system will automatically connect to the grid.
  5. If error message remains, please contact your installer.

Source: ESS510-manual.pdf, p.69

Frequently asked questions

What does error 17 mean on a Voltronic inverter?
It depends on the model — 6 devices use code 17. On the InfiniSolar WP LV 12KW Premium it means: DSP and MCU Com. Loss. The card for each model on this page gives its exact meaning and fix.
Is error 17 a fault or a warning?
17 is a fault code: the inverter cuts its output and the red LED stays solid until it is cleared.
How do I clear or fix error 17?
Restart the unit. If the fault happens again, contact your installer or the repair centre. The exact steps for each affected model are listed on this page.

Related error codes

Other codes on the InfiniSolar WP LV 12KW Premium

All InfiniSolar WP LV 12KW Premium codes

Other codes on the InfiniSolar 15KW

All InfiniSolar 15KW codes

Other codes on the InfiniSolar E 5.5KW

All InfiniSolar E 5.5KW codes

Other codes on the InfiniSolar 2KW/3KW

All InfiniSolar 2KW/3KW codes

Other codes on the InfiniSolar TX-PA 30KW

All InfiniSolar TX-PA 30KW codes

Other codes on the ESS510

All ESS510 codes

Compiled from official Voltronic user manuals. Always consult your device manual and a qualified technician before performing repairs.