PG Drives S-Drive fault code 4 flashes: Freewheel switch trip (current list). Older Drive sheets: not used

Code4 flashes
MeaningFreewheel switch trip (current list). Older Drive sheets: not used
ControllerS-Drive CONFIRMED
How it showsFlashes on battery gauge or status LED, pause, repeat. Programmer (PGDT PP1/SP-1/PC) shows 4-digit trip code
Likely part needed: Freewheel lever INFERRED – only if the checks below point to it. Find it ›

Likely causes

Freewheel/brake-release switch active

Step-by-step checks

  1. Put freewheel lever back to drive
  2. Cycle key

Switch off before unplugging anything. If the code stays after these checks, get a trained technician to look at it.

Parts that usually fix this INFERRED

Matched by ScootScan from the fault description to parts listed for models that use this controller. Do the checks first – many faults are fixed by charging, a loose plug or a reset – and check the part fits your model before ordering.

Freewheel lever · part no. T30900700000
Freewheel lever listed for the Drive DeVilbiss Monte Carlo

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Models using this controller

Other PG Drives S-Drive codes

1 flash · 2 flashes · 3 flashes · 4 flashes · 6 flashes · 7 flashes · 8 flashes · 9 flashes · 10 flashes · Slow single blink (every 2.5s) · 8 flashes (after battery refit)

All PG Drives S-Drive codes ›

Source: industrial.curtisswright.com/en-gb/pgdt/Online-Diagnostics/Flash-Code- ↗

Summarised from public manuals. Always check the product's own manual before any repair.