What to do if my Axpert Max 7200 shows a 09 fault?
If your Axpert Inverter displays a '09 fault', it indicates that the DC-DC module or the BUS soft start module is damaged. The suggested solution is to repair the main board or replace it directly.
Why is my Axpert Inverter not working and has no display?
If your Axpert Inverter isn't working at all and the display is blank, it could be due to a damaged SPS module. You can either repair the main board or replace it.
Guide for starting and initial checks of the inverter.
Explains the fundamental internal structure and operation of the inverter.
Details different inverter models and their characteristics.
Provides a visual overview of the inverter's internal components and boards.
Steps to follow when the inverter experiences a fault or malfunction.
Describes common fault conditions and their potential causes.
Procedures to test the inverter after component replacement.
Guide to checking fuses and capacitors on the main board's battery side.
Guide to checking DC/DC IGBTs and related components on the bus side.
Instructions for checking buck MOSFETs and diodes in the buck circuit.
Guide to checking INV IGBTs and related components in the full bridge.
Checks for MOSFETs, ICs, diodes, and resistors in the BATT and Main Power SPS.
Guide to checking fuses, NTCs, rectifiers, and transistors for AC/PV SPS.
Checks for boost IGBTs and diodes on the MPPT board.
Instructions for removing the top cover, rear panel, and initial cables.
Procedures for disconnecting internal cables and removing specific boards.
Guide to accessing and removing boards like SPS and Control Board.
Instructions for removing input/output cables, fan cables, and PV IN cable.
Guide to removing NTCs and main board screws for extraction.
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