Error codes › Inverters › Xantrex Freedom EX 4000 › 41 (Auxiliary Power Supply Under Voltage Shutdown)
Xantrex Freedom EX 4000 error code 41 (Auxiliary Power Supply Under Voltage Shutdown)
[E] Escalating auto fault, any mode: internal auxiliary power supply under voltage. Must occur 3 times in 30 seconds before becoming a manual fault.
What to check, and in what order, is in the app. A step-by-step flow walks this code with the pass/fail measurements, wiring schematics and procedures that go with it, and it works offline in the bay.
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- Freedom EX 4000 Inverter/Charger with 48VDC-to-12VDC Converter Owner's Guide 975-0999-01-01 Rev F (May 2025)Xantrex LLC
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