Whirlpool AVM 930 AV Manual de usuario

MICROWAVE OVEN AVM 930 AV

AVM 930 WH

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Service Man ual

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t""--" AV = AVANA 8ROWN

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MW A1 -INTRODUCTION, SAFETY

MW 81 -TECHNICAl DATA

(\ MW C1 -INSTRUCTIONS FOR INSTAllATION

! MW D1 -WORKING PRINCIPlE, PART NOMENClATURE

MW E1 -OPERATING INSTRUCTIONS

MW F1 -DESCRIPTION AND FUNCTIONS OF COMPONENTS

1MW G1 -INSTRUCTIONS FOR DISMANTLlNG AND REPlACEMENT

..(' MW H1 -MEASUREMENTS AND ADJUSTMENTS

j MW 11 -RF lEAKAGE

..MW l 1 -COMPONENTS CHECK

.--\ MW N1 -WIRING DIAGRAMS -FUNCTIONAl DESCRIPTION

MW 01 -EXPlODED VIEW, PARTS LIST

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( Subject to modification

481972968862

Printed in Italy -GL 0591 -Ed. 01

AVM 930 -MW A1

INTRODUCTION

Before leaving the factory each oven is carefully checked.

It must however, be installed and used correctly. '\

Oespite all the steps laken to make the oven safe, the safety is dependent on the correct installation and the fact the user ,I

understands how to use and maintain the oven.

The information in this section should be used as areminder that the oven is safe and that anyone who uses it must first ~

read the instructions tor use in order to be able to use the oven correctly and obtain the best results. )

)

SAFETY ~1

To avoid injury to yourself and damage to the appliance always work to the following rules when servicing an oven.

.Always disconnect the plug tram the mains before starting work. !.

If there is no plug switch-off the electricity supply at the control box.

.When you have finished servicing an oven before you reconnect it to the mains, make sure that:

-all the internal connections are correct .,-

-the wires are insulated and not touching the door or the cabinet or anything sharp

-all the earth connections are electrically and mechanically sound c--,

-do not modify or anyway interfere with the safety devices built-in to the oven

-make sure that each replacement part you use conforms to the manufacturer's specifications

.00 not start arepair if you have any doubt as to your ability to complete it. ~

J' 'J~' l

Ed. 01 -May 91 )

AVM 930 -MW 81

TECHNICAL DATA

.Dimensions

Cabinet height .395 mm

width : 550 mm

depth : 570 mm

Cavity height : 240 mm

width .345 mm

depth .370 mm

.Weight Netweight : 33 kg

Grossweight .36 kg

.VersionsSupply voltage .220 V and 240 V :t10% -50 Hz

":"CCurrent consumption full power .approx. 13 A (UK version)

14 A (Continental version)

13 A (Swedish version)

..(' Current consumption Stand-by : 0.5 A

\. .Mains fuge (in the oven) .T 6.3 A (delayed) (Microwave part)

( .Power line fuge : 16 AT (Continental version)

13 A (UK version)

10 A (Swedish version)

.Power consumption : MW = 1300 W

Grill = 1900 W .

F.A. = 1700 W

.Magnetron : 2 M 240

Operating frequency .2450:t 25 MHz

Output power .700 W

600 W (Swedish version)

.Power levels .20-100%

.Thermostat : 50-250°C

.Timer : Electronic

( .Heater voltage : 3.3 V :t 10%

: .Anode voltage : approx. 4 kV d.c.

(.Cos <p : approx. 0.95

.. ( .Cooling .forced air, max inlet temperature 35°C

.Inrush current .approx. 35 A

.Current leakage to earth .approx. 0.6 mA

.Rectifier current .not possible to measure

.Commercial type number .M930

r.Electrical connection 220 V : Cord and plug EU, 16 A with 2 kinds of earth connection

240 V .Cord and fused plug UK

!r-

Ed. 01 -May 91

AVM 930 -MW C1

'\I

INSTRUCTIONS FOR INSTAllATION ~

Place the microwave oven on a stable, level surface.

Da not place the appliance close to heat sources.

Ta allow good air circulation be sure thai the air inlet on top part of reff-hand side is not blocked. "I

The air outlet on the top of the oven and the top part of right-hand side shall have at least 5 cm air space to the sur-

roundings.

Take ca re to follow the same advice if the oven is to be hung on the wall by the wall hanging kilo )

INSTALLATION )

The oven is set tor the voltage indicated on the type plate situated on the back side of the oven.

Check thai the oven is connected to the correct vortage and properly earthed. ~

Use a correct fuse. See chapter "Technical data".

Measure the output power in accordance with the 1 litre of water method.

The measurement is explained in chapter "Measurements and adjustments". ,

Demonstrate the oven to the customer. Advise the customer of the servicing arrangements. ) .

\...

CAUTION -MICROWAVE RADIATION

PERSONNEl SHOUlD NOT BE EXPOSED TO THE MICROWAVE ENERGY WH ICH MAY RADIATE FROM THE ~

MAGNETRON, WAVEGUIDE OR ANTENNA IF THEY ARE IMPROPERl Y USED OR CONNECTED. ALL INPUT AND OUT-

PUT MICROWAVE CONNECTIONS, WAVEGUIDES, FLANGES AND GASKETS MUST BE SECURE.

NEVER OPERATE THE DEVICE WITHOUT A MICROWAVE ENERGY ABSORBING lOAD ATTACHED.

NEVER LOOK INTO AN OPEN WAVEGUIDE OR ANTENNA WHllE THE DEVICE IS ENERGIZED.

NEVER OPERATE AN OVEN WITH CABINET OFF WITHOUT MEASURING THE MICROWAVE LEAKAGE AROUND ~

MAGNETRON AND VISIBLE MICROWAVE CONNECTIONS (WElDING JOINTS).

Do not operate the oven if the following conditions exist:

-The door does not close firmly against the door support because of the door being warped or the hinges damaged.

-The door trims or seals are damaged.

-If there is any visible damage to the oven.

-If the door does not close properly.

Avoid operating the oven if known components in the interlock system, oven door or microwave generating assembly are

known defective. They must be replaced.

WARNING -HIGH VOLTAGE :

IT IS POSSIBlE TO GaME IN CONTACT WITH LETHAL HIGH Val TAGE WHEN WORKING WITH HVTRANSFORMER, HV

CAPACITOR, AND MAGNETRON.

THEREFORE NEVER TRY TO MEASURE THE HIGH VOLTAGE. ALWAYS TAKE UTMOST CARE WHEN PERFORMING "

ELECTRIC MEASUREMENTS INSIDE THE OVEN. (-'"'I ~

(-'"'I ,

~i. /-.

Ed. 01 -May 91 ~

AVM 930 -MW D1

MICROWAVE

FUNCTION

Microwave energy generated by the magnetron is

transmitted to the rotating anten na which reflects and

distributes the energy into the oven cavity für even

cooking results.

Fig.1/A

:r FORCED AIR

" r FUNCTION

Fig. 1/8

Fig.1/C

PART NOMENCLATURE

Air valve .

Cavity lamp 1120 Overheat protector

: Grill element 1180 F.A. unit 1160

( ODor

."-Bottom trayr Fan unit

Antenna Fan motor 1170

r Relay board1000

Mains filter 1030

rFunction selector1200 Magnetron 1010

Thermostat 1190 G

(' \J

: power contra' 1100 H.V. transformer

! 5000

Timer 1110 ODor switch

~ Operating Fig. 2

panel1 Ed. 01 -May 91

AVM 930 -MW E1

OPERATING INSTRUCTIONS ~

1. General :

The AVM 930 hag three heating sources:

-Microwave ~

-Forced air

-Grill

Microwave operation can be chosen in combination with

one of the above sources. )

2. Microwave only operation

-Put the function selector in off position n

-Set the desired microwave power

-Set the timer to the desired cooking time

-Press the start button ~

3. Forced air cooking

-Set the thermostat to the desired cooking temperature ~ ~ ~ ,

-Set the function selector to either FAfull speed or FA = ~. '1 .

half speed as required

-Set the timer to the desired cooking time or to f.

continuous mode unctlon \

-Press the start button selector $"

4. Grill cooking TUE ~

-Set the thermostat to the desired temperature, für grill ST's~ ~ r 1 1

this is mostly maximum 1/7, 1,-,-1 STAGE e:lectronic

-Set the function selector to grill or turbo-grill. Turbo- el IC'J!-::~J COOK tlmer

grill is grill + forced air without heating -+

-Set the timer to the desired cooking time or continuous 0stagke: ~

mode coo Ing

-Press the start button. digit set

microwave

5. Combinations power

Microwave cooking can be combined with either Forced .

air or Grill, but not all combinations at the same time. dautfowetIghteros

6. Opening the door

All cooking will be interrupted when the door is opened.

/(;'" start

7. Jet start ~ jet start

By pressing this button maximum the oven will start and stop

maximum microwave power will be on für 30 secs.

8. Stage cooking

A two-stage cooking program can be chosen by: thermostat

1) Press the stage cooking button.

2) Set the desired combination of microwave power and ,

time. -

3) Press the stage cooking button again. '"1""'" .". .,

4) Repeat step 2). ...",. ..I\\.l.4~,,&;

5) Press the start button. "

9. Auto weight defrost r\

By inputting the weight and foodclass automatic defrost

will start when pressing this button. ~

, l

)

Ed. 01 -May 91 ~

AVM 930 -MW F1

DESCRIPTION AND FUNCTION OF COMPONENTS

Interference filter (1030)

Is intended to avoid interference with radio or TV Set during operation.

Cook led (1090)

This led indicates to the user when the oven is in the cooking cycle. When the cycle is finished the light goes off.

Fan motor (1070)

The fan motor drives a blower fan which draws cooling air through the ventilation opening on the right hand side forcing it

around the magnetron end transformer. Same air is also forced info the cavity to make the antenne rotate end to remove

steam end vapours given off by the cooking food, end then out through the ventilation openings situated on the lett hand

side.

.Cavity tamp (1120)"";:

r The cavity lamp illuminates the inferior of the cavity so the food can be seen through the door window. The cavity lamps

lights anytime cooking time is set.

o. (

I. High voltage transformer (5000)

;- Purpose of HV transformer is to provide filament voltage tor heating the magnetron filament as weil as to produce high

voltage used tor magnetron tube operation.

During a "cook" cycle, the 220 V (240 V) ac applied to the primary winding is converted info approximately 3.3 V ac on

filament winding, and in to approximately 2300 V ac on the high voltage secondary winding of the power transformer.

Half wave voltage doubler circ~it (2000)

The halfwave voltage doublercircuit consists of a rectifier and a capacitorwith bleeding resistor. Purpose ofthis group is

to convert the 2300 V ac coming tram the secondary winding of high voltage transformer in to approximately 4000 Volts

d.c. needed tor magnetron operation.

Magnetron tube (1010)

Magnetron produces microwaves through the interaction of strang electric end magnetic fjelds. These microwaves are

guided into the oven cavity and evenly spread in the cavity by the rotating antenne producing the desired heat in the food.

Failure monitor switch (1150)

This is a normally open switch, which is clo$ed when the door is opened. Should then tor any reason the door switches

1055 or 1060 remain closed, the fuge 1002 will blow due to short-circuit. The short-circuit current is limited by resistor

3102.

Door switches (1040, 1140)

.These switches are safety switches operated by the door. The switch 1040 interrupts the current to the electronic control

.and display panel.

{ Switch 1040 is the primary door switch end 1140 the secondary door switch.

Note:

Defective switches should be destroyed to prevent possible future use.

(" ,Ce '",,-

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:C '; .'( :;3 Ed. 01 -May 91

AVM 930 -MW G1

'",

INSTRUCTIONS FOR DISMANTlING AND REPLACEMENT 1:(\ ~

Warning high vortage ;!)~';C":'"

Before removing the outer Gase unplug the oven. J ::

High vortage parts are accessible when the outer Gase is removed. ,~

FRONT PANEL REMOVAL r1

~ f (j'.

)".

-~ I

Fig.4 ~

TOP COVER AND SIDE PLATE REMOVAL

...

Fig.5 l'

)

Ed. 01 -May 91 1

AVM 930 -MW G2

CHANGINGCAVITYLAMP ~ t

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;,.r

Fig.6

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CHANGING THE GRILL ELEMENT

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rFig.7

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",. ""i.: Ed. 01 -May 91

AVM 930 -MW G3

FAN UNIT REMOVAL i

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1'"

Fig.8 ~

FORCED AIR UNIT REMOVAL ~

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Y!.13M~A:

/' / ~

...

Fig.9 ')

Ed. 01 -May 91 )

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