Ilve AL01

Ilve error code AL01 indicates: ILVE Nostalgie / Professional French Door & Built-in Column Refrigerator: Diagnostic fault code AL01 registered by the microcomputer controller. Audio-visual high temperature alarm triggered.

The primary root cause for Ilve code AL01 is: On ILVE appliances engineered with Dual-circuit refrigeration with separate cooling loops, twin variable-speed inverter compressors, electronic air distribution dampers, and active carbon air filter: interior temperature above safety threshold Metrological tolerance verification: nominal NTC thermistor 10.0 kΩ at 25°C, 2.5 kΩ at 60°C..

To resolve error code AL01: Disconnect mains power before servicing. Unplug the harness at the main PCB and use a calibrated digital multimeter: measure sensor resistance across 2-pin harness connector (expected ~10 kΩ at 25°C). Inspect contacts for pin oxidation or loose terminals. Replace defective part if out of tolerance, re-energize and clear error: Press and hold the Super Freeze and Temperature Adjust buttons together for 6 seconds until the display flashes all segments and resets diagnostic logs.

Resetting power (unplugging for 5–10 minutes) clears temporary memory errors. However, if Ilve code AL01 persists, the physical component causing On ILVE appliances engineered with Dual-circuit refrigeration with separate cooling loops, twin variable-speed inverter compressors, electronic air distribution dampers, and active carbon air filter: interior temperature above safety threshold Metrological tolerance verification: nominal NTC thermistor 10.0 kΩ at 25°C, 2.5 kΩ at 60°C. must be inspected or replaced.

Set a digital multimeter to ohms (Ω). Disconnect power and test Compressor Motor Windings (Run/Start) & Defrost Heater across Across 3 compressor pins (Common, Run, Start): R(C-S) + R(C-R) = R(S-R). Winding to earth: >20MΩ (OL).. Expected nominal reading is 15Ω–25Ω (Run C-R), 20Ω–35Ω (Start C-S), 200Ω–400Ω (Defrost Heater). PTC Relay: 10Ω–30Ω at 25°C.. Tolerance: ±10%. Any low insulation resistance to casing (<2MΩ) trips the breaker. Defrost bimetal reads <0.5Ω when sub-zero..

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.