MEGA 6/8/10/12 kW single-phase hybrid inverter — inverter fault
Beve 58 error code
Inverter output voltage is below the acceptable window; the manual's troubleshooting table puts this below 190 Vac.
Likely causes
- Overload dragging the output voltage down
- Output voltage setting too low
- Large motor start on the backup output
- Output stage fault
Checks to run, in order
- 1Measure output voltage at no load and under load with a true-RMS meter
- 2Reduce the connected load and re-measure (manual)
- 3Check the output voltage setting
- 4Check whether a motor start causes the dip
Fixes
- Reduce the connected load
- Correct the output voltage setting
- If the voltage stays low at no load, return the unit to the repair centre
When to escalate
If output voltage is low at no load after the setting is corrected, the distributor should inspect the output stage.
Fix it with the right tools
Check the system around the fault before replacing parts: load, battery bank, PV string and commissioning settings. If you need a second opinion, send the code and your inverter model to our team.
Before you open the inverter
- Isolate both the AC and DC sides, then confirm the display is dead before touching terminals.
- Use insulated tools and one hand where possible. DC arcs do not self-extinguish like AC.
- If you see burnt terminals, swollen cells, leaking electrolyte or a burning smell, stop and escalate instead of resetting the fault.
Questions installers ask
What does Beve 58 mean?
Inverter output voltage is below the acceptable window; the manual's troubleshooting table puts this below 190 Vac.
How do I fix Beve 58?
Reduce the connected load Correct the output voltage setting If the voltage stays low at no load, return the unit to the repair centre
When should I escalate Beve 58?
If output voltage is low at no load after the setting is corrected, the distributor should inspect the output stage.
Can I reset Beve 58 myself?
Only after isolating the AC and DC sides and running the checks above. If Beve 58 returns immediately, stop resetting it and escalate; a repeating fault usually points to a real circuit, battery or hardware problem.
Which models show Beve 58?
Beve 58 is documented for MEGA 6/8/10/12 kW single-phase hybrid inverter — inverter fault. Confirm the code on your own unit's display or manual before ordering parts.
More Beve error codes
- Beve 01Cooling fan is locked and not turning while the inverter is switched on.
- Beve 02Inverter temperature has exceeded its protection point.
- Beve 03Battery voltage is above the inverter's high battery cut-off.
- Beve 05Output short circuit detected on the inverter AC output.
- Beve 06Inverter output voltage is above the acceptable window; the manual's troubleshooting table puts this above 260 Vac.
- Beve 07Overload: the inverter has been running above its rating (102% in the manual's note) until the overload time expired.
Guidance reviewed 17 October 2026 by the Mishka Energy installer team. Error codes vary by brand, model family and firmware; confirm against the manufacturer manual.
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