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Heli Forklifts · SPN 520708 FMI 4
Power supply too low (3 s)

What this code means

Power supply is too low, continuous for 3 seconds (SPN 520708, hex 0x7F204).

Applies to: G3 Series IC CPCD20-35 with fingertip control (J1939 SPN/FMI codes).

Possible causes / checks (from the source)

Per manual resolution: fix the issue.

Need the part?

If diagnosis points to a failed sensor, solenoid, controller or harness part, send us the code (SPN 520708 FMI 4), machine model and serial number — we quote genuine and OEM replacement parts for export.

Source: HELI G3 Series Fingertip Error Codes (manufacturer document, HELI Canada document library doc.heliforklift.ca). Single published source — confirm against the manual for your exact model before ordering parts. Compiled 2026-10-30. No manufacturer affiliation.