Robot mower displays E17 and stops shortly after starting a mowing cycle.

Safety first: Turn OFF the mower and disconnect from the station.

• Check for obvious shorts: Inspect motor cables (blade and wheels) for crushed insulation or exposed copper touching the chassis.
• Recent repairs: If a motor was recently replaced, verify it is the correct Stiga part number and that wiring is correct.
• Drying: If the mower was recently wet, allow it to dry thoroughly and inspect the main board for moisture.
• Isolate motors (advanced): A technician can disconnect motors one by one to identify which circuit triggers E17.
• Service: Because this involves power electronics, board‑level diagnosis is best left to an authorized service center.