MuscleGrid Inverter Fault Codes — Choose Your Series
Sourced from the official MuscleGrid manuals · updated 2026-08-13
Pick your inverter series. Not sure which series you have? Go by the invoice date: before March 2026 = the earlier hybrid range; March 2026 onward = Focus or Titan (the series name is on the invoice and the front label).
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Focus 6.2 kW (MG6500-48)33 codes→
Every code, its meaning, and the fix
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Titan Series (4.2 / 6.2 kW)41 codes→
Every code, its meaning, and the fix
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Heavy Duty Series (3.6–6.2 kW)38 codes→
Every code, its meaning, and the fix
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MG Hybrid range (1.5–10.2 kW)10 codes→
Every code, its meaning, and the fix
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Battery fault codes (JK BMS)→
Codes on the battery's own LCD
Still stuck? Our support team fixes these issues every day — most by remote guidance, the rest by free doorstep pickup-repair-return under warranty.
Contact MuscleGrid Support → · Register your warranty
Contact MuscleGrid Support → · Register your warranty