Mower shows E29; internal memory for zones or maps cannot be accessed.

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Corrupted map data, Failing memory chip on main board, Interrupted mapping process, Firmware incompatibility

Safety: Keep the mower on the charging station during data operations.

Backup settings: If supported, back up your TerraMow configuration via the app.
Clear maps: Use the menu or app to delete stored maps or zones and reinitialize mapping.
Firmware update: Install the latest TerraMow firmware to ensure compatibility with mapping functions.
Remap lawn: Run a new mapping cycle following the manufacturer’s instructions.
If E29 persists: The map memory area on the main board may be defective and require board replacement.

Hard 4/5

TerraMow Main Control Board

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