Display shows H2; may be accompanied by beeping and very low or unrealistic temperature readings.

Safety first: Unplug the refrigerator before accessing sensors or wiring.

Check for obvious issues:

• Ensure the appliance is not set to a super-freeze or super-cool mode for an extended period.
• Verify that the unit is not installed in an unheated area where ambient temperature is very low, which can confuse sensors.

Inspect sensor wiring:

• Follow the fridge and freezer sensor leads (where accessible) and look for crushed or damaged insulation.
• At the main PCB, unplug and replug the sensor connectors to clear poor contacts.

Replace suspect sensor: If H2 is associated with a specific compartment, replace the corresponding Finlux NTC sensor as described in the E1/E2 procedures.

Professional diagnosis: If new sensors do not clear H2, the main control PCB may be misinterpreting sensor values and should be tested or replaced by a technician.