This is the complete fault table for the Voltronic Galleon II 6K-10K ups family — 42 codes shared by 2 model numbers, transcribed from the official manual. On this Voltronic device, a fault code means the unit has entered protection and stopped normal operation; a warning leaves it running. The exact indication (LED pattern or display code) is listed per code below.
Last checked against the official manuals on July 27, 2026.
Fault code 01 shown on the display; the UPS has detected a fault condition: Bus start failure.
CauseBus start failure.
Recommended fixRestart the unit. If the fault happens again, contact your installer or the repair centre.
Source:GalleonII-6-10K-Tower-RT-manual.pdf· page 29
Fault code 02 shown on the display; the UPS has detected a fault condition: Bus over.
CauseBus over.
Recommended fixRestart the unit. If the fault happens again, contact your installer or the repair centre.
Source:GalleonII-6-10K-Tower-RT-manual.pdf· page 29
Fault code 03 shown on the display; the UPS has detected a fault condition: Bus under.
CauseBus under.
Recommended fixRestart the unit. If the fault happens again, contact your installer or the repair centre.
Source:GalleonII-6-10K-Tower-RT-manual.pdf· page 29
Fault code 04 shown on the display; the UPS has detected a fault condition: Bus unbalance.
CauseBus unbalance.
Recommended fixRestart the unit. If the fault happens again, contact your installer or the repair centre.
Source:GalleonII-6-10K-Tower-RT-manual.pdf· page 29
Fault code 11 shown on the display; the UPS has detected a fault condition: Inverter soft start failure.
CauseInverter soft start failure.
Recommended fixRestart the unit. If the fault happens again, contact your installer or the repair centre.
Source:GalleonII-6-10K-Tower-RT-manual.pdf· page 29
Fault code 12 shown on the display; the UPS has detected a fault condition: High Inverter voltage.
CauseHigh Inverter voltage.
Recommended fixRestart the unit. If the fault happens again, contact your installer or the repair centre.
Source:GalleonII-6-10K-Tower-RT-manual.pdf· page 29
Fault code 13 shown on the display; the UPS has detected a fault condition: Low Inverter voltage.
CauseLow Inverter voltage.
Recommended fixRestart the unit. If the fault happens again, contact your installer or the repair centre.
Source:GalleonII-6-10K-Tower-RT-manual.pdf· page 29
Fault code 14 shown on the display; the UPS has detected a fault condition: Inverter output short circuited.
CauseInverter output short circuited.
Recommended fixRestart the unit. If the fault happens again, contact your installer or the repair centre.
Source:GalleonII-6-10K-Tower-RT-manual.pdf· page 29
Fault code 1A shown on the display; the UPS has detected a fault condition: Negative power fault.
CauseNegative power fault.
Recommended fixRestart the unit. If the fault happens again, contact your installer or the repair centre.
Source:GalleonII-6-10K-Tower-RT-manual.pdf· page 29
Fault code 21 shown on the display; the UPS has detected a fault condition: Battery SCR short circuited.
CauseBattery SCR short circuited.
Recommended fixRestart the unit. If the fault happens again, contact your installer or the repair centre.
Source:GalleonII-6-10K-Tower-RT-manual.pdf· page 29
Fault code 24 shown on the display; the UPS has detected a fault condition: Inverter relay short circuited.
CauseInverter relay short circuited.
Recommended fixRestart the unit. If the fault happens again, contact your installer or the repair centre.
Source:GalleonII-6-10K-Tower-RT-manual.pdf· page 29
Fault code 2A shown on the display; the UPS has detected a fault condition: Charger short circuited.
CauseCharger short circuited.
Recommended fixRestart the unit. If the fault happens again, contact your installer or the repair centre.
Source:GalleonII-6-10K-Tower-RT-manual.pdf· page 29
Fault code 31 shown on the display; the UPS has detected a fault condition: Can communication fault.
CauseCan communication fault.
Recommended fixRestart the unit. If the fault happens again, contact your installer or the repair centre.
Source:GalleonII-6-10K-Tower-RT-manual.pdf· page 29
Fault code 36 shown on the display; the UPS has detected a fault condition: Parallel output current unbalance.
CauseParallel output current unbalance.
Recommended fixRestart the unit. If the fault happens again, contact your installer or the repair centre.
Source:GalleonII-6-10K-Tower-RT-manual.pdf· page 29
Fault code 41 shown on the display; the UPS has detected a fault condition: Over temperature.
CauseOver temperature.
Recommended fixRestart the unit. If the fault happens again, contact your installer or the repair centre.
Source:GalleonII-6-10K-Tower-RT-manual.pdf· page 29
Fault code 42 shown on the display; the UPS has detected a fault condition: CPU communication failure.
CauseCPU communication failure.
Recommended fixRestart the unit. If the fault happens again, contact your installer or the repair centre.
Source:GalleonII-6-10K-Tower-RT-manual.pdf· page 29
Fault code 43 shown on the display; the UPS has detected a fault condition: Overload.
CauseOverload.
Recommended fixRestart the unit. If the fault happens again, contact your installer or the repair centre.
Source:GalleonII-6-10K-Tower-RT-manual.pdf· page 29
Fault code 60 shown on the display; the UPS has detected a fault condition: Inverter over current.
CauseInverter over current.
Recommended fixRestart the unit. If the fault happens again, contact your installer or the repair centre.
Source:GalleonII-6-10K-Tower-RT-manual.pdf· page 29
Fault code 6A shown on the display; the UPS has detected a fault condition: Battery turn-on failure.
CauseBattery turn-on failure.
Recommended fixRestart the unit. If the fault happens again, contact your installer or the repair centre.
Source:GalleonII-6-10K-Tower-RT-manual.pdf· page 29
Fault code 6B shown on the display; the UPS has detected a fault condition: PFC current failure in battery mode.
CausePFC current failure in battery mode.
Recommended fixRestart the unit. If the fault happens again, contact your installer or the repair centre.
Source:GalleonII-6-10K-Tower-RT-manual.pdf· page 29
Fault code 6C shown on the display; the UPS has detected a fault condition: Bus voltage changes too fast.
CauseBus voltage changes too fast.
Recommended fixRestart the unit. If the fault happens again, contact your installer or the repair centre.
Source:GalleonII-6-10K-Tower-RT-manual.pdf· page 29
Fault code 6D shown on the display; the UPS has detected a fault condition: Inverter current detection error.
CauseInverter current detection error.
Recommended fixRestart the unit. If the fault happens again, contact your installer or the repair centre.
Source:GalleonII-6-10K-Tower-RT-manual.pdf· page 29
Fault code 6E shown on the display; the UPS has detected a fault condition: SPS 12V abnormal.
CauseSPS 12V abnormal.
Recommended fixRestart the unit. If the fault happens again, contact your installer or the repair centre.
Source:GalleonII-6-10K-Tower-RT-manual.pdf· page 29
Fault code 77 shown on the display; the UPS has detected a fault condition: Transformer over temperature.
CauseTransformer over temperature.
Recommended fixRestart the unit. If the fault happens again, contact your installer or the repair centre.
Source:GalleonII-6-10K-Tower-RT-manual.pdf· page 29
Warning code 01 flashing on the display: Battery unconnected.
CauseBattery unconnected.
Recommended fixThe unit keeps operating. Clear the condition shown and the warning resets automatically; if it persists, contact your installer or the repair centre.
Source:GalleonII-6-10K-Tower-RT-manual.pdf· page 29
Warning code 07 flashing on the display: Over charge.
CauseOver charge.
Recommended fixThe unit keeps operating. Clear the condition shown and the warning resets automatically; if it persists, contact your installer or the repair centre.
Source:GalleonII-6-10K-Tower-RT-manual.pdf· page 29
Warning code 08 flashing on the display: Low battery.
CauseLow battery.
Recommended fixThe unit keeps operating. Clear the condition shown and the warning resets automatically; if it persists, contact your installer or the repair centre.
Source:GalleonII-6-10K-Tower-RT-manual.pdf· page 29
Warning code 09 flashing on the display: Overload.
CauseOverload.
Recommended fixThe unit keeps operating. Clear the condition shown and the warning resets automatically; if it persists, contact your installer or the repair centre.
Source:GalleonII-6-10K-Tower-RT-manual.pdf· page 29
Warning code 0A flashing on the display: Fan failure.
CauseFan failure.
Recommended fixThe unit keeps operating. Clear the condition shown and the warning resets automatically; if it persists, contact your installer or the repair centre.
Source:GalleonII-6-10K-Tower-RT-manual.pdf· page 29
Warning code 0B flashing on the display: EPO enable.
CauseEPO enable.
Recommended fixThe unit keeps operating. Clear the condition shown and the warning resets automatically; if it persists, contact your installer or the repair centre.
Source:GalleonII-6-10K-Tower-RT-manual.pdf· page 29
Warning code 0D flashing on the display: Over temperature.
CauseOver temperature.
Recommended fixThe unit keeps operating. Clear the condition shown and the warning resets automatically; if it persists, contact your installer or the repair centre.
Source:GalleonII-6-10K-Tower-RT-manual.pdf· page 29
Warning code 0E flashing on the display: Charger failure.
CauseCharger failure.
Recommended fixThe unit keeps operating. Clear the condition shown and the warning resets automatically; if it persists, contact your installer or the repair centre.
Source:GalleonII-6-10K-Tower-RT-manual.pdf· page 29
Warning code 10 flashing on the display: L1 IP fuse broken.
CauseL1 IP fuse broken.
Recommended fixThe unit keeps operating. Clear the condition shown and the warning resets automatically; if it persists, contact your installer or the repair centre.
Source:GalleonII-6-10K-Tower-RT-manual.pdf· page 29
Warning code 21 flashing on the display: Line situations are different in parallel system.
CauseLine situations are different in parallel system.
Recommended fixThe unit keeps operating. Clear the condition shown and the warning resets automatically; if it persists, contact your installer or the repair centre.
Source:GalleonII-6-10K-Tower-RT-manual.pdf· page 29
Warning code 22 flashing on the display: Bypass situations are different in parallel system.
CauseBypass situations are different in parallel system.
Recommended fixThe unit keeps operating. Clear the condition shown and the warning resets automatically; if it persists, contact your installer or the repair centre.
Source:GalleonII-6-10K-Tower-RT-manual.pdf· page 29
Warning code 33 flashing on the display: Locked in bypass after overload 3 times in 30min.
CauseLocked in bypass after overload 3 times in 30min.
Recommended fixThe unit keeps operating. Clear the condition shown and the warning resets automatically; if it persists, contact your installer or the repair centre.
Source:GalleonII-6-10K-Tower-RT-manual.pdf· page 29
Warning code 3A flashing on the display: Cover of maintain switch is open.
CauseCover of maintain switch is open.
Recommended fixThe unit keeps operating. Clear the condition shown and the warning resets automatically; if it persists, contact your installer or the repair centre.
Source:GalleonII-6-10K-Tower-RT-manual.pdf· page 29
Warning code 3D flashing on the display: Bypass unstable.
CauseBypass unstable.
Recommended fixThe unit keeps operating. Clear the condition shown and the warning resets automatically; if it persists, contact your installer or the repair centre.
Source:GalleonII-6-10K-Tower-RT-manual.pdf· page 29
Warning code 3E flashing on the display: Boot loader is missing.
CauseBoot loader is missing.
Recommended fixThe unit keeps operating. Clear the condition shown and the warning resets automatically; if it persists, contact your installer or the repair centre.
Source:GalleonII-6-10K-Tower-RT-manual.pdf· page 29
Warning code 42 flashing on the display: Over-temperature on transformer.
CauseOver-temperature on transformer.
Recommended fixThe unit keeps operating. Clear the condition shown and the warning resets automatically; if it persists, contact your installer or the repair centre.
Source:GalleonII-6-10K-Tower-RT-manual.pdf· page 29
Warning code 44 flashing on the display: Failure on parallel redundancy.
CauseFailure on parallel redundancy.
Recommended fixThe unit keeps operating. Clear the condition shown and the warning resets automatically; if it persists, contact your installer or the repair centre.
Source:GalleonII-6-10K-Tower-RT-manual.pdf· page 29
Warning code 45 flashing on the display: Overload on parallel redundancy.
CauseOverload on parallel redundancy.
Recommended fixThe unit keeps operating. Clear the condition shown and the warning resets automatically; if it persists, contact your installer or the repair centre.
Source:GalleonII-6-10K-Tower-RT-manual.pdf· page 29
Send us the code on your screen and a Voltronic technician will reply with the exact steps for your unit. Support is free for life — a first diagnosis never needs a callout.
Compiled from official Voltronic user manuals. Always consult your device manual and a qualified technician before performing repairs.