- ITZAA 2/44 599 38 47-44CONTENT1 INTRODUCTION ....................................................................................................................................... 52 AIR CIRCULATION.................................................................................................................................... 73 REFRIGERATION CIRCUIT...................................................................................................................... 84 ELECTRIC WIRING................................................................................................................................... 95 COMPONENTS ....................................................................................................................................... 115.1 Control panel ................................................................................................................................... 115.2 Electronic boards ............................................................................................................................. 125.2.1 Power board ERF2050 ........................................................................................................... 135.2.2 Display board ERF2000.......................................................................................................... 165.3 Cooler compartment ........................................................................................................................ 175.3.1 Temperature sensor ............................................................................................................... 185.3.2 Door switch ............................................................................................................................. 185.3.3 Air flow regulator (damper) ..................................................................................................... 195.3.4 Carbon air filter ....................................................................................................................... 195.3.5 LED lighting (optional depending on the models) ................................................................... 205.4 Freezer compartment ...................................................................................................................... 215.4.1 Cold module............................................................................................................................ 225.4.2 Thermal switches.................................................................................................................... 225.4.3 Cold module fan...................................................................................................................... 235.4.4 Defrosting heater .................................................................................................................... 235.4.5 Temperature sensor ............................................................................................................... 245.4.6 Door switch ............................................................................................................................. 255.5 Compressor compartment ............................................................................................................... 256 MAIN FUNCTIONS .................................................................................................................................. 266.1 Normal ............................................................................................................................................. 266.2 Normal with first switching on or power failure ................................................................................ 276.3 Defrosting ........................................................................................................................................ 286.4 Flow chart for the defrosting management ...................................................................................... 296.5 FROSTMATIC Function (rapid freezing) ......................................................................................... 306.6 COOLMATIC Function (rapid cooling)............................................................................................. 306.7 HOLIDAY Function (valid only for the cooler).................................................................................. 306.8 Malfunctioning of cooler air temperature sensor.............................................................................. 316.9 Malfunctioning of freezer temperature sensor ................................................................................. 327 ALARMS .................................................................................................................................................. 337.1 Freezer compartment temperature alarm ........................................................................................ 338 ACCESSIBILITY ...................................................................................................................................... 348.1 Freezer compartment ...................................................................................................................... 348.1.1 Battery evaporator .................................................................................................................. 348.2 Control panel ................................................................................................................................... 388.3 Cooler compartment accessibility .................................................................................................... 408.3.1 Air flow regulator (damper) ..................................................................................................... 408.3.2 LED lighting (optional depending on the models) ................................................................... 419 TROUBLESHOOTING............................................................................................................................. 429.1 Excessive ice formation on the battery : .......................................................................................... 429.2 Failed defrosting: ............................................................................................................................. 42