Whirlpool AVM585/IX Bedienungsanleitung

WHIRLPOOL PRODUCTS DEVELOPMENT LTD. SERVICE MANUAL

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WHIRLPOOL MICROWAVE

PRODUCTS DEVELOPMENT LIMITED

SERVICE INFO MANUAL

MODEL: AVM585/IX

SKU#: 853858558791

DATE: September 02, 2003

REVISON: 0

WHIRLPOOL PRODUCTS DEVELOPMENT LTD. SERVICE MANUAL

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CONTENTS

1. SPECIFICATIONS

2. SAFETY PRECAUTIONS

3. INSTALLATION REQUIREMENTS

3.1 GENERAL

3.2 GROUNDING INSTRUCTIONS

4. SCHEMATIC DIAGRAM

5. MICROWAVE AND LEAKAGE TEST

5.1 MICROWAVE TEST

5.2 MICROWAVE LEAKAGE TEST

6. TROUBLE SHOOTING GUIDE

6.1 CAUTION AND IMPORTANT

6.2 MICROWAVE LEAKAGE

6.3 QUICK REFERENCE

7. MAJOR COMPONENT TESTS

7.1 HV TRANSFORMER

7.2 HV CAPACITOR

7.3 HV DIODE

7.4 MAGNETRON

7.5 INTERLOCK SWITCH SYSTEM

8. PART LIST & EXPLODED DIAGRAM

WHIRLPOOL PRODUCTS DEVELOPMENT LTD. SERVICE MANUAL

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1. SPECIFICATION

Oven model

AVM585/IX

Items

Technical Data

Outside Dimensions

(H) x (W) x (D)

332mm x 424mm x 548mm

Dimensions of Cavity

(H) x (W) x (D)

225mm x 339.4 x 345mm

Cavity

27L

Net Weight

22kg

Gross Weight

24kg

Power supply

220V/60Hz, Single Phase

Input Power

1380W

Output Power

850W (Microwave)

Microwave frequency

2450MHz

Grill Power

900W

Current consumption

6.7A (Microwave)

Fuse

Control

Electrical touch foil control

99 minute 99 second timer

10-level microwave power level

3-level combi power level

Pure browning cooking function

Cooking Type

Microwave cooking only

Browning cooking only

Microwave/browning combi cooking

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2. SAFETY PRECAUTIONS

This manual is intended for use by personnel with adequate background in

electrical, electronic and mechanical engineering. Any improper attempt to

repair this oven may result in personal injury and property damage. The

manufacturer or seller cannot be hold responsible for the interpretation of this

manual nor can they assume any liability in connection with its use.

PRECAUTIONS TO BE OBSERVED BEFORE AND DURING

SERVICING TO AVOID POSSIBLE EXPOSURE TO EXCESSIVE

MICROWAVE ENERGY.

a. Do not operate or allow the oven to be operated with the door open.

b. Make the following safety checks on all ovens to be serviced before

activating the magnetron or other microwave sources, and make repairs

when necessary:

1. Interlock operation

2. Proper door closing

3. Seal and sealing surfaces (arcing, wear, and other damage)

4. Damage to or loosening of hinges and latches

5. Evidence of dropping or abuse

c. Before turning on the microwave power for any service test or

inspection within the microwave generating compartments, check the

magnetron, waveguide or transmission line, and cavity for proper

alignment, integrity, and connection.

d. Any defective or misadjusted components in the interlock, monitor,

door seal, and microwave generation and transmission system shall be

repaired, replaced, or adjusted by procedures described in this manual

before the oven is released to the owner.

e. A microwave leakage check to verify compliance with the Federal

Performance standard should be performed on each oven prior to

release to the owner.

TO PREVENT ELECTRICAL SHOCK, PAY EXTREME CAUTION

WHEN DIAGNOSING OVEN WITH OUTER CASE REMOVED AND

POWER TURNED “ON”. THE HIGH VOLTAGE SECTION OF THE

POWER SUPPLY, INCLUDING FILAMENT LEADS, ARE AT A HIGH

TENSION OF -4000 VOLTS. ALSO, ENSURE THAT THE HIGH

VOLTAGE CAPACITOR IS DISCHARGED.

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3. INSTALLATION REQUIREMENTS

3.1 GENERAL

1. The oven should be placed on a flat and stable surface

2. Place the oven away from high temperature and steam sources.

3. Clearance of at least 5cm (2”) on each side must be provided to allow

adequate ventilation.

4. The microwave oven must be plugged directly to a 3-prong wall receptacle

which is properly grounded.

5. The power source must be 220V 50Hz 8A single phase.

3.2 GROUNDING INSTRUCTIONS

IMPORTANT:

DISCONNECT POWER BEFORE SERVICING, RECONNECT ALL

GROUNDING DEVICES.

All mechanical parts of this appliance capable of conducting electricity are

grounded. In the event of an electrical short circuit, grounding reduces the

risk of electric shock. This appliance is equipped with a cord having a

grounding wire with a ground plug. The plug must be plugged into an outlet

that is properly installed and grounded.

WARNING:

IMPROPER USE OF THE GROUNDING PLUG MAY RESULT IN

ELECTRICAL SHOCK.

If grounding wires, screws, straps, clips, nuts or washers used to complete a

path to ground are removed for service, they must be returned to their original

positions and properly fastened.

GROUNDING SPECIFICATION:

Leakage current: 0.5mA max.

Ground path resistance: 0.1 ohm max.

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4. SCHEMATIC DIAGRAM

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5. MICROWAVE AND LEAKAGE TESTS

5.1 MICROWAVE TEST

The following is a simple test to check if the appliance is generating

microwave energy. This test is not intended to be an accurate test. An

accurate measurement of output power must be performed under strict control

following the IEC standard. In field service, accurate measurement of output

power is usually not required.

1. Prepare a beaker of water of quantity about 1000cc.

2. Measure the temperature of the water before putting into the oven.

3. Heat the water in the oven with full power (microwave only) for 60

seconds.

4. Again measure the temperature of the water.

5. If the temperature rise by about 10 degree C, then the microwave

generating system is working.

5.2 MICROWAVE LEAKAGE TEST

5.2.1 TESTING EQUIPMENT

600cc beaker

Microwave meter

6.2.2 TESTING PROCEDURE

1. Place 275cc of water into the beaker and place it in the center of the oven.

2. Turn on the microwave oven by setting the timer ON at full power.

3. Hold the probe of the microwave meter perpendicular to the surface of the

oven and scan it at the rate of 1 inch/sec.

4. Test the following areas for microwave leakage:

Door and control panel

All ventilation openings

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All lockseams

Weld at bottom

Bottom plate

Oven foot

5. Pull the door to the position at which the oven is just about to turn off due to

the interlock switch action, scan the door perimeter for microwave leakage.

6. Maximum allowable leakage is 1 mW/cm2.

7. Record all data.

5.2.3 OVEN LEAKAGE REPAIR

If leakage figure is found to be above 5 mW/cm2, owner should be told not to use

the oven until it has been serviced. Service personnel should notify the

manufacturer and CDRH (FDA) immediately.

5.2.4 OPEN DOOR TEST

With the oven in operation state, open the oven door and check if the oven is still

operating. If so, the service personnel should tell the owner not to operate the

oven again and should notify the manufacturer and CDRH (FDA) immediately.

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6. TROUBLE SHOOTING GUIDE

6.1 CAUTION AND IMPORTANT

1. Before disassembling the oven, the oven power must be turned off. Remove the

power plug of the oven from the outlet and wait for at least 3 minutes.

2. When disassembling, service personnel should remove their watches and metal

chains from their hands. Never touch the high voltage components and wire.

3. Before checking or replacing, discharge the high voltage capacitor to oven chassis

grounded with an insulated wire. Make sure that the wire is grounded to chassis

side before short circuiting the capacitor terminal.

4. Do not measure high voltage with a common voltmeter.

6.2 MICROWAVE LEAKAGE

1. Refer to section 5.2 regarding microwave leakage. If the leakage is greater than

1 mW/cm2, it is necessary to repair the oven.

2. If leakage is found worst at control panel, ventilation openings or oven bottom,

check if there is any damaged parts or loose screws in the respective areas. If so,

replace the damaged parts and fasten the screws.

3. If leakage is found worst around the door perimeter, adjust the door hinges and the

interlock support.

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6.3 QUICK SERVICE REFERENCES

PROBLEM

POINTS TO CHECK

Cavity lamp does not light, but other

electrical components (e.g. turntable) are

working.

1. Lamp burnt.

2. Bad contact between lamp and lamp

socket.

Cavity lamp does not light, all other

electrical components also do not work.

1. Power plug not in good connection

with the socket. No power supply.

2. Fuse blown.

3. Bad contact between fuse and fuse

holder/clip.

4. Loose door hinge, door poorly adjusted,

interlock poorly adjusted; causing fuse

to be blown.

5. Short circuit within electrical circuit.

Lamp filament short, HV transformer

short, all causing fuse blown.

6. Bad contact in contacts or terminals of

timer switch, primary and secondary

interlock switch.

7. HV diode break down.

Oven seems working, food does not cook

1. Defective magnetron (filament broken,

filament short to ground etc.).

2. Ground wire of HV transformer broken.

3. Filament wire short to ground.

4. Filament wire broken.

5. Bad contact in magnetron terminals.

6. Defective control boards.

7. HV diode break down, giving a hum

noise.

Oven cooks for a short while and stop.

1. Cooling fan jammed.

2. Cooling fan motor open circuit.

3. Defective cooling fan control relay.

Turntable does not turn.

1. Defective turntable motor.

2. Turntable shaft deformed.

User circuit breaker activates.

1. High leakage in electrical components

(mostly motor).

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