Robot mower stops with E5 during mowing; may occur in tall or wet grass and sometimes resumes after a restart.

Safety first: Switch OFF main power and wear gloves before accessing the blade area.

• Raise cutting height: Adjust the cutting height to a higher setting using the mower's height adjustment knob or lever. Mow in stages if the grass is very tall.
• Clean the cutting deck: Turn the mower over and remove packed grass from around the blade disc and under the deck. Use a plastic scraper; avoid metal tools that can damage the deck.
• Inspect and replace blades: Check that all pivoting blades move freely and are sharp. Replace any dull, chipped, or bent blades with a complete set of genuine Kress Replacement Blades.
• Check for overheating: If the mower feels very hot, allow it to cool in the shade for 30–60 minutes before restarting.
• Persistent E5 in normal grass: If the error occurs even in short, dry grass with a clean deck, the Blade Motor may be failing or the current sensor on the Main Control Board may be out of tolerance. Have the mower inspected by a technician.