F5 error, Hoover freezer may not start cooling after a power cut or brownout.

Safety: Always unplug the freezer before removing covers. Do not bypass safety protections.

• Check mains supply: Plug another appliance into the same socket to confirm stable power. Avoid using long extension leads or multi-way adaptors.
• Power reset: Unplug the freezer for at least 15 minutes to allow internal protections to reset, then reconnect directly to a wall socket.
• Inspect power cord and plug: Look for damage, overheating, or loose pins. Replace the plug or cord if damaged.
• Access PCB (advanced): If comfortable, remove the PCB cover and inspect the power input area for burnt components or cracked solder joints.
• Use a surge protector: After resolving the issue, consider using a quality surge protector to protect the freezer from future spikes.

Important: If F5 persists despite a good mains supply and intact cord, the internal power supply on the PCB is likely damaged and the main control board should be replaced by a professional.