Cordless vacuum displays E7 and runs only on low power, turbo mode disabled

Safety first: Do not attempt to cool or heat the battery rapidly (no freezers, ovens, or direct heaters). Extreme temperatures can damage cells.

• Allow to reach room temperature: Remove the battery pack and leave it indoors at room temperature (15–25°C) for at least 1–2 hours.
• Avoid heavy use immediately after charging: Let the battery rest for 15–20 minutes after a full charge before using turbo mode.
• Check storage conditions: Do not store the vacuum or battery in very hot (loft, car in sun) or very cold (unheated shed) environments.
• Retest: Refit the battery and test again. If E7 clears and turbo works, the issue was environmental.
• Persistent E7 at normal temperature: If the error appears even when the battery is at room temperature, the internal temperature sensor or BMS is likely faulty. Replace the battery pack with a genuine Morphy Richards unit.