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Hotpoint MWH 424.1 X, Service Information

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Hotpoint MWH 424.1 X Service Information Download Page 11

11 of 45

Service Manual UK

Indesit

Company

English

SETTING UP YOUR OVEN

OVERALL VIEW

Names of Oven Parts and Accessories

Remove the oven and all materials from the carton and oven cavity. Your oven comes with the 
following accessories:

Enamel Tray

1

Turntable Ring Assembly

1

Instruction Manual

1

Control Panel & Features

1.

Control Panel

2.

Grill Element

3.

Light

4.

Level

5.

Door Glass

6.

Hinge

7.

Turntable Shaft

8.

Short Grill Rack

9.

Long Grill Rack

10. Grill Pan

1.

Function Knob

2.

Power/Weight Button

3.

Quickly Preheating Button

4.

On/Off Button

5.

Temperature/Automenu Button

6.

Clock Button

7.

Start/Pause Button

8.

Selection Knob

1

2

3

4

5

6

7

9

8

10

1

2 3

4

5

6

7

1

8

Summary of Contents for MWH 424.1 X

Page 1: ...n London 106725 Service Information HOTPOINT BUILT IN COMBINATION MICROWAVE OVENS ELECTRONIC WITH TOUCH VARIABLE CONTROL Models Comm Covered Code MWH424 1X 82011 MWH424 1Q 84362 5413400 Issue 1 Nov 2014 C00306264 SM003956 Changes in this Issue New Service Manual New Models ...

Page 2: ...ication carried out where necessary 7 It can be dangerous to attempt DIY repairs maintenance on complex equipment and the Company recommends that any problem with the appliance is referred to its own Service Organisation 8 On completion of any servicing the Microwave Oven must be checked to verify compliance with the current safety standard for microwave leakage 9 Whilst the Company has endeavoure...

Page 3: ...vels 14 Automatic Programmes 3400 W cooking power Dimensions Unpacked Packed Height 454 mm 550 mm Width 594 mm 700 mm Depth 568 mm 670 mm Oven Cavity Size Height 25 cm Usable 23 cm Width 42 cm Usable 40 cm Depth 40 cm Usable 40 cm Interior Stainless Steel Capacity 44 litres Weight 41 kg unpacked 44 kg packed Electrical Supply 230 240 Volts AC 50 Hz Fuse Rating 16 amp Absorbed current Requires Hard...

Page 4: ...in microwave ovens In order to avoid overheating and the consequent risk of fire it is advisable to supervise the oven when cooking food in disposable containers made of plastic cardboard or other inflammable materials and when heating small quantities of food Never place the turntable in water after it has been heated for a long time The high thermal shock resulting would break the glass turntabl...

Page 5: ...in things you must do is stir the food several times while it is being cooked This helps make the temperature distribution more uniform and thus shortens the cooking time 3 It is also advisable to turn the foodstuff over during its cooking process This applies especially for meat whether it is in large pieces roasts whole chickens etc or small chicken breasts etc 4 Foods having a skin shell or pee...

Page 6: ...been built in The oven s neutral blue wire must be connected to the network s neutral It must be possible to disconnect the appliance from the power supply by fitting a switch on the fixed wiring system in accordance with installation rules Ensure that The electrical power has sufficient voltage the power cable is in good condition The diameter of the wires complies with installation requirements ...

Page 7: ...ted Consumers may take their old appliance to public waste collection areas other communal collection areas or if national legislation allows return it to a retailer when purchasing a similar new product All major household appliance manufacturers are active in the creation of systems to manage the collection and disposal of old appliances SPECIFICATIONS Rated Voltage 240V 50Hz Rated Input Power M...

Page 8: ...apparatus and lead to a dangerous situation Important information about installing This appliance is NOT intended for use in a commercial environment Placement Danger Do not disassemble this appliance Touching internal components of this appliance can cause serious personal injury or death Place the microwave oven on a firm flat surface Make sure that there is sufficient ventilation around the mic...

Page 9: ...that it is in the centre 2 Open the door and fasten the microwave with the screws that were supplied Fully insert the appliance and centre it Do not kink the connecting cable Screw the appliance into place The gap between the worktop and the appliance must not be closed by additional battens Install the Grill Pan 1 Be sure the angle of the shaft 2 Adjust the angle of the grill pan and the shaft 3 ...

Page 10: ...l tray upside down The enamel tray should never be restricted b The enamel tray must always be used during cooking c All food and containers of food are always placed on the enamel tray for cooking d If the enamel tray breaks or cracks it should be replaced Hub underside Enamel Tray Turntable Shaft ...

Page 11: ...ories Enamel Tray 1 Turntable Ring Assembly 1 Instruction Manual 1 Control Panel Features 1 Control Panel 2 Grill Element 3 Light 4 Level 5 Door Glass 6 Hinge 7 Turntable Shaft 8 Short Grill Rack 9 Long Grill Rack 10 Grill Pan 1 Function Knob 2 Power Weight Button 3 Quickly Preheating Button 4 On Off Button 5 Temperature Automenu Button 6 Clock Button 7 Start Pause Button 8 Selection Knob 1 2 3 4 ...

Page 12: ...setting 2 If you do not want to see the clock in the display press button briefly The time disappears Press again and the clock appears in the display again 2 Microwave Cooking 1 Press the ON OFF button to activate the microwave function 01 00 is blinking in the display and the microwave icon appears If no operation in 10 seconds the current power will be confirmed automatically 2 Turn knob to set...

Page 13: ...itable Display 900W 700W 450W 300W 100W Power Level Food 900 W Boiling water reheating Cooking chicken fish vegetables 700 W Reheating Cooking mushrooms shell fish Cooking dishes containing eggs and cheese 450 W Cooking rice soup 300 W Defrosting Melting chocolate and butter 100 W Defrosting sensitive delicate foods and irregularly shaped foods Softening ice cream Allowing dough to rise ...

Page 14: ...rown crust Grill Grill The grill is very suitable to prepare thin pieces of meat and fish Function Mode Heating Hot air Bottom heat Use this function to roast big pieces of meat pizza etc Combination Hot air Microwave Hot air Use this function to roast meals quickly Grill with fan Microwave Grill with fan Grill Microwave Grill Use this function to cook meals quickly and at the same time give the m...

Page 15: ...dicator lights If no operation in 10 seconds the correct temperature will confirmed automatically The default temperature is 180 degrees indicator will light when grill fan function is selected 3 Press to enter to the temperature selection 4 Turn to select the temperature between 100 to 230 degrees The temperatures are 100 105 110 115 120 125 130 135 140 145 150 155 160 165 170 175 180 185 190 195...

Page 16: ...ower The default power is 300W 6 Turn to select 700W 450W 300W and 100W 7 Press to select the time setting mode The default time is 10 minutes 8 Turn to select the cooking time The MAX time is 90 minutes 9 Press button to start cooking 9 Microwave Grill Fan Cooking 1 Press the ON OFF button to activate the microwave function 2 Turn to select the combination mode and will light The default temperat...

Page 17: ...t cooking The programmes with a are preheated During preheating the cooking time pauses and the preheating symbol is on After preheating you will hear an alarm and the preheating symbol will blink The programmes with only use the microwave function Program Category Item Defrost Meat If you hear a beep the combi microwave oven stops Turn the food and press the start pause button to continue the def...

Page 18: ... for Children Lock In waiting state press and at the same time there will be a long beep denoting entering into the children lock state and indicator will light Unlock In locked state press and or 3 seconds there will be a long beep denoting that the lock is released and indicator will disappear Note Child lock can be selected only before selecting a function 14 Display Specification 1 When settin...

Page 19: ...ot overcook food 11 Do not use the oven cavity for storage purposes Do not store items such as bread cookies etc inside the oven 12 Remove wire twist ties and metal handles from paper or plastic containers bags before placing them in the oven 13 Install or locate this oven only in accordance with the installation instructions provided 14 Eggs in the shell and whole hard boiled eggs should not be h...

Page 20: ...ay become hot during use Young children should be kept away 28 Steam cleaner is not to be used 29 During use the appliance becomes hot Care should be taken to avoid touching heating elements inside the oven 30 Only use the temperature probe recommended for this oven for ovens provided with a facility to use a temperature sensing probe 31 WARNING The appliance and its accessible parts become hot du...

Page 21: ...ons Do not close with metal tie Make slits to allow steam to escape Paper plates and cups Use for short term cooking warming only Do not leave oven unattended while cooking Paper towels Use to cover food for reheating and absorbing fat Use with supervision for a short term coo king only Parchment paper Use as a cover to prevent splattering or a wrap for steaming Plastic 1MGVS EZI WEJI SRP SPPS XLI...

Page 22: ... Causes Remedy Microwave oven interfering TV reception Radio and TV reception may be interfered when microwave oven operating It is similar to the interference of small electrical appliances like mixer vacuum cleaner and electric fan It is normal Dim oven light In lower power microwave cooking oven light may become dim It is normal Steam accumulating on door hot air out of vents In cooking steam m...

Page 23: ...23 of 45 Indesit Company Service Manual UK English INTERNAL PARTS COOLING FAN TRANSFORMER MAINS TERMINAL BLOCK LAMP DOOR SWITCH MAGNETRON DOOR SWITCH OVEN PROBE CUTOUT OVEN FAN ...

Page 24: ...24 of 45 Service Manual UK Indesit Company English WIRING DIAGRAM ...

Page 25: ...paired replaced or adjusted by procedures described in this manual before the oven is released to the owner E A microwave leakage check should be performed on each oven prior to release to the owner CAUTION MICROWAVE RADIATION DO NOT BECOME EXPOSED TO RADIATION FROM THE MICROWAVE GENERATOR OR OTHER PARTS CONDUCTING MICROWAVE ENERGY CAUTIONS Unlike other appliances the microwave oven is high voltag...

Page 26: ...be secure never operate the device without a microwave energy absorbing load attached Never look into an open waveguide or antenna while the device is energized Proper operation of the microwave oven requires that the magnetron be assembled to the waveguide and cavity Never operate the magnetron unless it is properly installed Be sure that the magnetron gasket is properly installed around the dome...

Page 27: ...te over the magnetron The air is also directed into the oven to exhaust the vapour in the oven through the upper plate Timer starts rotating 3 2 volts AC is generated from the filament winding of the high voltage transformer This 3 2 volts is applied to the magnetron to heat the magnetron filament through two noise preventing choke coils A high voltage of approximately 2100 volts AC is generated i...

Page 28: ... Change the turntable motor 2 Insert the plug securely 3 Change the weave 5 The oven can heat within 2 3 minutes but can not heat from the fourth minutes 1 The winding of the fan motor in open circuited 2 The fan falls off 3 The plug of the fan motor falls off 4 The turntable shaft is griped with the motor bearing 5 The cooling vent blocked 1 Change the fan motor 2 Change the fan 3 Insert the plug...

Page 29: ...e personnel should check all surface and vent openings for microwave leakage Check for microwave leakage after every servicing The power density of the microwave radiation leakage emitted by the microwave oven should not exceed 5 mW cm2 Always start measuring of an unknown field to assure safety for operating personnel from radiation leakage MEASURING MICROWAVE ENERGY LEAKAGE Pour 275 15 cc of 20 ...

Page 30: ...igital or analog type the check the electrical continuity 2 2 Make sure the power cord is pulled out and the high voltage capacitor is discharged before the electrical continuity check 2 3 Set the ohmmeter to Low Resistance range and connect both leads alligator clips to the switch terminals 2 4 Open the door and notice the meter reading The primary or secondary interlock switch should show an inf...

Page 31: ...lug and operator accessible metal parts The resistance should be no less than 2 Mega Ohms Repair the oven again when necessary FAULT CODES FAULT CODE DESCRIPTION POSSIBLE REASON E 01 Sensor temperature is open circuit 1 No Sensor Temperature 2 There is an open circuit contact in the circuit of the Sensor Temperature E 04 Sensor temperature is short circuit 1 There is a short circuit in the circuit...

Page 32: ...s per the instructions below Failure to do this can result in the turntable rotating continuously 1 Ensure the door latch depresses the red microswitch lever Check both switch assemblies If it does not make the lever unscrew the assembly and move it forwards until it does 2 Test ALL appliance functions and carry out microwave leakage test ...

Page 33: ...e cabinet removed or the door open 4 Refer to Safety Warnings on pages 2 and 4 A Cabinet Top Front Cover 1 Release the microwave from its housing 2 Remove the six front screws and lift the small front cover clear See Figs 1 2 B Cabinet Top Cover Complete 1 Release the microwave from its housing 2 Remove the twelve screws leaving three shown 3 Lift the panel off See Figs 3 4 C Console Panel Knobs C...

Page 34: ...rwards to gain access to the circuit boards 7 Remove the two screws holding the console backplate to the console See Fig 8 8 Remove the three screws or eleven screws and lift the applicable board clear See Figs 5 10 D Lamp 1 Release the microwave from its housing 2 Remove the top cover A 3 Remove one screw and slide the lamp holder forward 4 Disconnect the wiring and two securing screws See Figs 1...

Page 35: ... black holder and carefully release the retaining lugs 7 Remove one screw securing the noise filter to the holder See Figs 13 16 F Cabinet Back Panel 1 Release the microwave from its housing 2 Remove the three screws 3 Disengage the panel from the locating lugs and lift clear See Figs 17 18 G Cabinet RH LH Side Panels 1 Release the microwave from its housing 2 Remove the cabinet top A 3 Remove the...

Page 36: ...he five remaining screws securing the base and lift off See Fig 20 I Base Element 1 Release the microwave from its housing 2 Remove the oven plate and coupler 3 Remove the left hand side panel viewed from rear 4 Disconnect the wiring 5 Remove the two 7mm bolts 6 Using suitable protection carefully lay on its side 7 Remove the base H 8 Remove one screw and lift off the white air duct 9 Remove the 7...

Page 37: ...L Transformer 1 Release the microwave from its housing 2 Remove the cabinet top A 3 Disconnect the wiring 4 Remove the four securing screws and lift clear See Fig 28 M Cooling Fan 1 Release the microwave from its housing 2 Remove the cabinet top A 3 Remove the screw securing the diode 4 Remove the four screws securing the fan ducting 5 Lift the fan ducting and remove the four screws securing the f...

Page 38: ...ve the cabinet top A 3 Disconnect the wiring 4 Remove the four securing screws 5 Lift clear See Figs 33 34 P Grill Element 1 Release the microwave from its housing 2 Remove the cabinet top A 3 Remove the right hand side panel viewed from the front 4 Disconnect the wiring 5 Remove the two 7mm nuts securing the element terminals to the side of the cabinet 6 Remove the two 7mm nuts securing the eleme...

Page 39: ...ab to the release thermostat 5 Remove the five screws to release the large air guide and two for the small air guide See Figs 38 39 R Probe 1 Release the microwave from its housing 2 Remove the rear panel 3 Remove the one fixing screw See Fig 40 4 Disconnect the wires S Door Switch 1 Release the microwave from its housing 2 Remove the cabinet top A 3 Disconnect the wiring 4 Remove the two securing...

Page 40: ...4 Disconnect the wiring and remove the two 7mm nuts 5 Remove the ten screws and lift away 6 On re fitting ensure that the rubber seal is placed in the location holes See Figs 43 46 U Rear Thermostat 1 Release the microwave from its housing 2 Remove the back panel A 3 Disconnect the wiring 4 Remove the one screw and bend the tag 5 Lift clear from the convector See Fig 47 Fig 43 Fig 44 Fig 45 Fig 46...

Page 41: ...ear 5 Disconnect the wiring See Figs 48 50 W Door Assembly Removal 1 Release the microwave from its housing 2 Leave the door closed 3 Remove the small access panel each side each held by two screws 4 Unhook the tension spring on each side 5 Remove the two hinge securing screws each side 6 Lift the door complete with hinges clear and place on a protected surface 7 Remove the three screws securing t...

Page 42: ...e six screws securing the inner panel to the outer door 6 On re assembly locate the seal round the inner door panel Very slight lubrication will assist the location and replacement whilst clipping back into place See Figs 54 59 Y Inner Door Glass 1 Release the microwave from its housing 2 Remove the outer door glass X 3 Invert the inner panel locate and remove one screw securing the glass by a ret...

Page 43: ...e from its housing 2 Remove the outer door glass X 3 Invert the inner door and remove the three hinge securing the screws each side 4 Remove one door handle screw each side 5 Release the spring to remove tension 6 Ease the securing pin out and lift the latch clear See Figs 62 66 Fig 62 Fig 63 Fig 64 Fig 65 Fig 66 ...

Page 44: ...44 of 45 Indesit Company Service Manual UK English OTHER ITEMS SUPPLIED ...

Page 45: ...45 of 45 Indesit Company Service Manual UK English ...

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