Magnum error code High Batt Temp
The inverter/charger shut down because the Battery Temperature Sensor (BTS) read above 54 degC / 129 degF.
What to check, and in what order, is in the app. The flow Magnum: No Output Power, Inverter LED OFF walks this code step by step with the pass/fail measurements, wiring schematics and procedures that go with it, and it works offline in the bay.
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- Magnum_ME-RC_Remote_Owners_Manual_64-0003-H_V2.9.pdf
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