Scholtès Refrigerator / Freezer AL04

Scholtès error code AL04 indicates: Scholtès Pure Cold Built-in Total NoFrost Refrigerator: Alarm code AL04 indicates prolonged AC mains power outage; internal cabinet temperature rose above safe food storage threshold..

The primary root cause for Scholtès code AL04 is: On Scholtès refrigerators (Scholtès Haute Horlogerie Culinaire sensors and micro-electronic platform architecture): Grid power blackout exceeding 3 hours or loose wall plug connection, accompanied by temperature rise above -9°C in freezer..

To resolve error code AL04: Inspect food items for thawing. Measure AC mains voltage at wall socket (230V AC ±10%). Press Alarm Reset or Temperature button for 3 seconds to clear alarm and restore normal display. Press and hold Alarm Reset pad for 5 seconds, verify compartment display stops blinking, and allow 12h for complete stabilization.

Resetting power (unplugging for 5–10 minutes) clears temporary memory errors. However, if Scholtès code AL04 persists, the physical component causing On Scholtès refrigerators (Scholtès Haute Horlogerie Culinaire sensors and micro-electronic platform architecture): Grid power blackout exceeding 3 hours or loose wall plug connection, accompanied by temperature rise above -9°C in freezer. must be inspected or replaced.

Set a digital multimeter to ohms (Ω). Disconnect power and test Protective Earth Bonding & Incoming Mains Voltage across Between unpainted chassis metal and mains plug earth pin; incoming terminal block L-N. Expected nominal reading is Earth Ground Continuity: <0.1Ω (Chassis metal to mains plug earth pin). Mains: 230V AC ±10%.. Tolerance: Protective conductor impedance must remain <0.1Ω. Line voltage 207V–253V AC under load..

Standard electrical safety protocol: 1. Disconnect 230V mains power before opening panels. 2. Verify zero voltage at test points. 3. Allow hot water or heating elements to cool below 30°C before handling.