Zerowatt ZR / FrostFree Combi Refrigerator: Critical freezer high temperature alarm AL01; freezer compartment temperature has risen above safe threshold of -9°C.
On Zerowatt refrigeration units featuring ZR FrostFree cooling circuit, mechanical thermostat / NTC temperature regulation, and hermetic compressor: Prolonged domestic power outage, freezer door left open, heavy loading of unfrozen food, or refrigerant leak.
Mute acoustic alarm with Alarm Reset button. Activate Super Freeze mode for 12 hours. Verify compressor runs and evaporator chills down to -18°C. Reset: Hold Temperature button for 10 seconds until the interior cabinet light blinks three times signaling microprocessor reset.
