High humidity or condensation alarm in a specific compartment; display shows AL09 and visible condensation forms on walls or shelves.

Safety first: Unplug the unit before adjusting door hinges or replacing gaskets to avoid accidental fan or light operation.

Step 1 – Usage and environment:

• Reduce the frequency and duration of door openings, especially in humid climates.
• Ensure hot foods are cooled to room temperature before placing them inside.

Step 2 – Inspect door gaskets:

• Check the gasket around the affected compartment for tears, gaps, or hardened sections.
• Close a thin sheet of paper in the door at several points; if it pulls out easily without resistance, the seal is weak.
• Clean the gasket with warm soapy water and dry thoroughly; sometimes dirt prevents a good seal.
• If the gasket is damaged or warped, replace it with a Fhiaba-specific gasket.

Step 3 – Check for cooling issues:

• Verify that the compartment is reaching its set temperature; if it is also warm, investigate fan and evaporator performance.
• Listen for the evaporator fan and check for frost buildup behind the rear panel.

Step 4 – Sensor and control:

• If humidity remains high and AL09 persists despite good sealing and normal cooling, the humidity sensor or control board may be faulty.
• Replacement of the sensor should be done by a technician familiar with Fhiaba electronics.