H2 code, Hoover freezer indicates over-temperature event after a power cut or door left open.

Safety: No internal repair is usually needed. Do not open the freezer more than necessary while temperature is recovering.

• Check cause: Confirm whether there was a recent power cut or the door was left open. Correct any user-related issues.
• Ventilation: Ensure there is adequate space around the freezer (typically at least 5 cm at sides and rear) and that the condenser area is not blocked by dust.
• Reset alarm: Press and hold the alarm or reset button as described in your Hoover manual to clear the H2 indication.
• Monitor temperature: Use a thermometer to ensure the freezer returns to -18 °C within 24 hours. If it does not, investigate cooling performance issues.

Note: H2 itself is not a hardware fault but a warning. Persistent high temperature after clearing the alarm indicates an underlying cooling or sealing problem.