Hardware component incompatibility

Hardware incompatibility shows up as an inverter status code saying that one or more PC boards inside the inverter do not work with each other. It is typically seen after a board has been replaced. How the inverter responds depends on the code. With codes 436 and 438 it retries and resumes feeding the grid if it can. With codes 480 and 481 it stops feeding current. Codes 558 and 559 only put a warning on the display. In monitoring data, a stopping code shows as zero AC output even though there is sun. A warning-only code may cause error displays or malfunctions without stopping production. On some units the same compatibility code can instead point to an invalid power module configuration. Check whether boards or modules were recently swapped. First, update the inverter firmware. If the code persists or keeps coming back, contact the system installer or a Fronius-trained service technician. Firmware updates can fix software-related inverter faults. If a restart does not help or the fault keeps returning, a service team usually has to find the origin.

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• sentence 3: support check: partial - No feed-in for stopping codes is stated, and 558 mentions possible error displays or malfunctions, but 'zero AC output even though there is sun' and 'without stopping production' are not stated.
• sentence 4: support check: partial - Code 445 lists compatibility error and invalid power module configuration, but 'on some units the same code' and the advice to check recent swaps are not stated.
• sentence 5: support check: partial - Firmware update then contact a technician appears for 436/480, but 558 evidence only says contact the system installer without a firmware step.
• sentence 4: review: partial - Code 445 lists both a compatibility error and an invalid power module configuration, but the instruction to check for recently swapped boards or modules is not stated. -->