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Whirlpool WRX-17TM, Service Manual

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Whirlpool WRX-17TM Service Manual Download Page 17

17

4.  Loose all other screws and remove the Electronic Control.

IMPORTANT

# Be careful when using the Multimeter measuring probes, as they may damage the connector terminals.

# Be careful when removing the electronic board connectors, as they are latched.

Remove them at right angles with no side movements.

7.2. Interface Board – LCD Display

1- Remove the policarbonate and unscrew the interface from the door;

2- Disconnect the interface cable and connect the new one;

Summary of Contents for WRX-17TM

Page 1: ...on 12NC WRX 17TM WRX48FSBFW00 Silver color Whirlpool LAR Home Appliances Division MSEX0000i International Business SKIC 1st Edition Prepared by Luciano Cidral January 2008 Reviewed by Alvaro S Alcântara January 2008 ...

Page 2: ...ER FAN MOTOR 8 4 4 REFRIGERATOR FAN MOTOR 8 4 5 ELECTRONIC CONTROL 8 4 6 INTERFACE BOARD LCD DISPLAY 9 5 TESTS 9 5 1 INITIAL TEST ROUTINE FACTORY ROUTINE 9 5 2 SERVICE TEST ROUTINE 10 5 3 SENSOR 11 5 4 ALARM SYSTEM 12 5 4 1 Party Mode time exceeded 12 5 4 2 Temperature Alarm 13 5 4 3 Open door 13 5 5 TECHNICAL TROUBLESHOOTING 13 6 REQUIRED TOOLS 16 7 ASSEMBLAGE DISMOUNT 16 7 1 ELECTRONIC CONTROL 1...

Page 3: ...Can holder depending on model 6a Multiflow outlets 7 Crisper drawer divider depending on model 8 Divider depending on model 9 Ice maker depending on model 10 Freezer shelves depending on model 11 Egg tray 12 Freezer compartment door 13 Freezer compartment door trays 14 Fresh control compartment C Anti bacterial filter depending on model Attention The anti bacterial filter assures a higher level of...

Page 4: ...nic control b The temperature inside the refrigerator compartment is controlled by an mechanical thermostatic damper which controls the air flow from the freezer to the refrigerator compartment therefore the changed air from the refrigerator compartment rises till the temperature sensor located on the freezer The factor which defines when will occurs a defrost procedure is therefore strongly linke...

Page 5: ...with several seals to prevent air leaking through the sides 3 3 Functions 3 3 1 Adaptive Defrost This refrigerator has an adaptive defrost system which is adjustable according to client s habits environmental conditions etc Monitored by the electronic control this system is constituted of the following components Electronic control Defrost heater Defrost sensor temperature Defrost gutter Evaporati...

Page 6: ...9 hours after compressor activity the first defrost Upon ending the activity of the fast freezing function 18 hours the next defrost cycles will occur as adaptive normal cycles 4 MAIN COMPONENTS 4 1 Cooling Circuit 4 1 1 Compressor Acessories Alternative hermetic and high efficient compressor made by Embraco to refrigerant R134a Remark The compressor just works again when we have 7 minutes since i...

Page 7: ...g a better performance of the system Its operation on off is also commanded by the electronic control and its electrical features are Power 275 W value 194 to 227 ohms The lower part of the defrost heater is fixed at the defrost gutter through claws in order to avoid ice building on this place Always ensure the contact between these parts 4 2 2 Defrost sensor It s located at the freezer compartmen...

Page 8: ...efrigerator fan motor is also fed by direct voltage V dc therefore located inside the wind flow fixed to a plastic housing by flexible rubber holder which avoids occasional vibrations and consequently noise it is responsible for the forced air circulation inside the refrigerator compartment Technical Characterístics Rated voltage 24 Vdc Operating range 20 4 Vdc 27 6 Vdc Current max a 0 1 a Potency...

Page 9: ...rator through the Defrost Sensor and then the Routine will start automatically The Defrost Heater is energized for 6 seconds Freezer Fan Motor is energized for 6 seconds Refrigerator Fan Motor is energized for 6 seconds After 18 seconds from the result temperature gained from the Defrost Sensor the Electronic Control will manage the activation of the compressor and fan motors as follow If the Defr...

Page 10: ...this model of refrigerator and then will turn off automatically The code 9 must be shown on the Freezer Temperature Icon of the LCD Display otherwise the test routine was not accepted 5 Press ON key and all the Upper Icons regarding to Freezer Compartment will switch on 6 Press ON again and the icons will switch off 7 Press MENU key and all the Intermediate Icons regarding to Alarms will switch on...

Page 11: ...reconnected When this lack of power makes the freezer and defrost sensors temperatures upper than 20ºc the control will assume the pre selected factory temperature When necessary do the check of temperatures resistances of the sensor in its terminals on the control board All operation range must be in accordance to the selection temperature done on the interface panel and the software of the elect...

Page 12: ...e Call Alarm This alarm status is straightly connected to a wrong reading short circuit or NTC open from any of the temperature sensors in this situation the electronic control system activates the alarm icon and shows the failure code regarding to the sensor in fault see below at the LCD display as follows Alarm Code Sensor reader Temperature icon indicator 01 Refrigerator sensor Refrigerator com...

Page 13: ...ated When constant check if the magnet on the doors freezer and refrigerator end cap exists poor contact between terminals connectors LCD Display interrupted wire between LCD display x electronic control and then the interface board COMMENTS When the open door alarm is disabled by the key turn off alarm OK but if the door is kept open it will be again activated after 2 minutes This will repeat in ...

Page 14: ...ation done on this manual alarm item regarding respective alarm code shown on the interface If the freezer fan motor is working properly Check the fan motor electronic control and their electric connectors carring out the self test routine Finding any problem adjust the contacts or replace the damaged component The sealed system operation as leakage or restriction on the system low compressor pump...

Page 15: ...et check the hinges adjustment If the temperature set is on the proper position Place the selection on the proper adjust and advise the consumer Internal refrigerator sweating If still hot unpacked or uncovered food was stored Advise the consumer External temperature and relative humidity are high Advise the consumer that the external sweating is normal in these situations If the minimum embedding...

Page 16: ...ew product Advise the consumer to clean with warm water and neutral soap 6 REQUIRED TOOLS Temperature Thermometer Multi meter AC DC Ammeter Pliers Clamp Pliers Small and Large Screwdriver Socket Nutdrivers 6mm 8mm and Torx screwdriver T 30 Medium and Large Phillips screwdriver Alen screwdriver 7 ASSEMBLAGE DISMOUNT 7 1 Electronic Control 1 Remove the cover fastening screws 2 Release the cover tabs...

Page 17: ... as they may damage the connector terminals Be careful when removing the electronic board connectors as they are latched Remove them at right angles with no side movements 7 2 Interface Board LCD Display 1 Remove the policarbonate and unscrew the interface from the door 2 Disconnect the interface cable and connect the new one ...

Page 18: ...e Interface board WARNING Electrostatic Discharge Risk Do not touch the Circuit components because you can damage fuse burnt or weaken the board Always handle the Boards by the sides plastic holder Spare Parts stock boards must be kept in anti static packaging 7 3 Lamp Switch 1 Remove the switch 2 Release the connector and pull out the set ...

Page 19: ...ir Diffuser 1 Remove the lamp protector 2 Loosen the fastening screws 3 Disengage the diffuser from the roof and loose the lamp connectors 4 Cut the seals with a carpenter knife 5 Remove the diffuser complement ...

Page 20: ...of the type silver tape or either of the tapes below Euro ST400 Tape Sicad do Brasil 465G Tecroll Tape Milano Técnica Scotch 56 Polyester Tape 3M do Brasil Do not use krepp tape packing tape or electrical tape black tape to redo the seals 7 5 Evaporator WARNING Be careful when handling the Evaporator due to it blades has sharp edges and can cut your hands Always wear protective gloves 1 Order a ne...

Page 21: ...ventions on the hermetic systems 7 6 Sensors Refrigerator Freezer Defrost Warning these sensors refrigerator freezer defrost are compatible with each other but Are not compatible with the sensors of the previous line Never replace these sensors with the sensor kit used in the previous line In the necessity of replacing one of the temperature sensors use the sensor kit which consist in temperature ...

Page 22: ... inside the connector for this grease protects the wire terminals against moisture and rust 6 Take the other connector and repeat the operation with the other wires then put the Sensor at its origin position 7 7 Door Reversal This Refrigerator comes assembled from the factory with the doors opening towards the right side hinges and bushings are located on the right side when facing the product In ...

Page 23: ...wdriver remove the upper hinge cover 4 Disconnect the Interface board LCD Display wire connectors 5 Remove the upper Hinge screws and then the Hinge itself 6 Remove the freezer door 7 Hide the wire connector into the cabinet housing then remove the plastic cover from left side and place it on the right hand 8 On the left side of the cabinet release the hidden wire connectors then disconnect them k...

Page 24: ...r and place it on the right hand side of the rail 12 Swap the position of the Plinth complement with the lower hinge pin 13 On the freezerr door remove the hinge bushing then using a small screwdriver take out the plastic cover 14 On the left side do the same operation to remove the finishing plastic cover ...

Page 25: ...he right side and the plastic cover bushing in the left side 18 At the lower part remove the right hand clicking bushing and install the left hand clicking bushing which is available on the Kit 19 On the left hand side remove the bushing and place it in the opposite side where the right hand bushing was installed 20 Repeat the same procedure indicated above for the refrigerator door 21 Position th...

Page 26: ...ing connectors 24 Align both doors and check the gasket seal If necessary adjust them 25 Tighten all hinge screws 26 Place the hinge cover and reinstall all internal door shelves 27 Remove the allen screws that fasten the freezer and refrigerator handles 28 Close the door orifices using the plugs provided with the Kit ...

Page 27: ...27 29 On the left hand side remove de door plugs 30 Finally assembly the handles inverting its position and fastening the allen screws ...

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