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11

 
 
 
 

DEFROST CIRCUIT 

The defrost circuit has a series of components that allows the disintegration of the frost formed during the cooling 
cycle: control board, defrost sensor, relay number 2 in the board, output port in the board, defrost thermostat, fuses and 
resistance (heater). 

 
 

 

 

FAN MOTORS

 

The cooling unit has two fan motors, one in the freezer compartment and another one in the condenser unit, which 
operate at 127 volts AC. 
 
The evaporator fan motor circulate the warmer air of the fresh food compartment through the evaporator and sends 
cold air to the freezer and fresh food compartments. 
 
The condenser fan motor works as an auxiliary dissipator of the heat generated by the condenser due to the cooling 
vapor that circulates through the line. 

 

When the board processor has accumulated an amount of 
compressor operating time and the sensor records a high 
resistance value above 8.5 k., the board sends a 12 V. DC 
signal to the relay and the relay connects to the resistance in 
order to generate heat and melt all the accumulated frost. 

Содержание serviplus SEDNA ESTILO

Страница 1: ...1 mabe SERVICE MANUAL FOR SEDNA ESTILO REFRIGERATORS from Mabe and G E PUB 06 MAN RE 02...

Страница 2: ...2...

Страница 3: ...AL DATA Electrical specifications No load operation Cooling unit Installation AIRFLOW Fan motors baffle lines ICE FACTORY Ice tray filling ice buckets ice disposal ELECTRONIC CONTROL BOARDS Deluxe ele...

Страница 4: ...this technical manual is designed for technical personnel with knowledge and expertise in electricity electronics and mechanics as a guide for servicing these automatic no frost refrigerators Any pers...

Страница 5: ...ment Follow these instructions 1 Start using your product keeping the factory preset positions medium level for both controls Let the appliance operate for 6 hours so that the temperature becomes stab...

Страница 6: ...so see in the digital display an indicator light that swirls quickly This feature remains enabled for approximately an hour Once this period is over the refrigerator returns to normal operation Alarm...

Страница 7: ...stem Forced Air Cooling Unit This kind of system uses fans in the freezer and the condenser area to remove the hot air from the condenser and the refrigerator area Natural Convection With Static Conde...

Страница 8: ...ent consists of a bimetallic disc which when it detects an excessive temperature in the compressor or when its integrated resistance becomes too hot due to an excessive current bends and disconnects t...

Страница 9: ...e its resistance when the temperature is higher The operating element of the PTC is basically a highly pure barium titanate disc with aluminum coating When a certain voltage is transmitted to the PTC...

Страница 10: ...ID MID Control Position Room Temperature 70 F 90 F Fresh Food Compartment F Freezer F Compressor operation COOLING UNIT Refrigerant charge R134a 3 5 ounce 13 15 cubic foot models Compressor cooling ca...

Страница 11: ...ts AC The evaporator fan motor circulate the warmer air of the fresh food compartment through the evaporator and sends cold air to the freezer and fresh food compartments The condenser fan motor works...

Страница 12: ...the resistance is connected and to program the next defrost cycle DEFROST SENSOR The sensor s function is to detect the amount of ice and time that the resistance is enabled in order to vary the time...

Страница 13: ...13 Evaporator fan motor Condenser fan motor assembly...

Страница 14: ...CE UNPLUG IT FROM THE ELECTRICAL OUTLET C DISCONNECT THE WIRING HARNESS FROM THE FREEZER SENSOR CON1 D ENERGIZE THE APPLIANCE PLUG IT INTO THE ELECTRICAL OUTLET E AFTER APROX 4 SECONDS TURN ON THE COM...

Страница 15: ...evaporator is low enough to have the Defrost Thermostat closed and allow current flow towards the Resistance F TO RE ENABLE THE COMPRESSOR OPERATION FOLLOW THE INSTRUCTIONS FROM STEP G G DE ENERGIZE...

Страница 16: ...temperature control integrated to the board In case any of these components is damaged the whole assembly must be changed because each board is calibrated with these components When applying a 127 A C...

Страница 17: ...200D2124G002 Main Board for 11 14 Models 220 V Polar Electronic with knob 200D2124G003 Main Board for 15 18 Models 110 V Polar Electronic with knob 200D2124G004 Main Board for 15 18 Models 220 V Polar...

Страница 18: ...st points GND and P P which will turn off the compressor Three seconds later a signal will be sent to the defrost resistance to start working and at this moment the white and blue cables must give a r...

Страница 19: ...TE THE VALUES BETWEEN EACH READING CAN VARY BECAUSE THE THERMOMETER SENSES TEMPERATURE FASTER THAN THE THERMISTOR SINCE THE THERMISTOR IS ENCAPSULATED IF THE THERMISTOR IS KEPT AT A CONSTANT TEMPERATU...

Страница 20: ...t cycles will start after 48 hours of accumulated operating compressor time This feature is cleared by the board s integrated photocell when the fresh food compartment door is opened OPERATION TEST Se...

Страница 21: ...sembly Airflow system Defrost system components are the thermostat the thermistor and the resistance heater Defrost drainage system The defrost duct is hidden behind the back and the insulating materi...

Страница 22: ...22 DIAGRAM...

Страница 23: ...23 LIGHT BLUE...

Страница 24: ...PERES Compressor CBZN100L2 PARA SEDNA 13 Y 15 THE SAME FORM FOR POLAR 12 AND 14 IS 3 8 AMPERES OPERATING PRESSURES LOW SIDE AND HIGH SIDE De acuerdo al plano estos son los valores para el SEDNA Accord...

Страница 25: ...ob to higher position 3 The refrigerator does not cool both the compressor and the light bulb work The electronic board does not send a signal for the defrost cycle the evaporator is blocked with ice...

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