Whirlpool 6MT 744/WH User manual

WHIRLPOOL CONSUMER SERVICES Models 6MT 744/WH

June 2001

All rights strictly reserved. Reproduction or issue to third parties in any form whatsoever is

not permitted without written authority of Whirlpool (Australia) Pty. Limited

Whirlpool is a registered trademark of Whirlpool U.S.A.

This documentation is intended only for qualified technicians who possess the required qualifications and

are aware of the regulatory requirements applicable to servicing electrical appliances.

Whirlpool (Australia) Pty Limited Part No. SM7031

A. C. N. 003 578 023

WHIRLPOOL AUSTRALASIA

CONSUMER SERVICES

SERVICE MANUAL

CRISP GRILL MICROWAVE OVEN

Model 6MT 744/WH

Version 8538 744 53781

WHIRLPOOL CONSUMER SERVICES Models 6MT 744/WH

Page 2 of 8

CONTENTS

INTRODUCTION SAFETY 3

TECHNICAL DATA 4

ERROR CODES 4

EXPLODED VIEW 5

PARTS LIST 6 - 7

CIRCUIT DIAGRAM 8

WHIRLPOOL CONSUMER SERVICES Models 6MT 744/WH

Page 3 of 8

INTRODUCTION SAFETY

INTRODUCTION

Before leaving the factory each oven is carefully checked.

It must, however, be installed and used correctly.

Despite all the steps taken to make the oven safe, the safety is dependent on the correct installation and the fact the

user understands how to use and maintain the oven.

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

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

SAFETY

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

Always disconnect the plug from the mains before starting work.

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

When you have finished servicing an and 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

-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

Do not start a repair if you have any doubt as to your ability to complete it.

CAUTION - MICROWAVE RADIATION

PERSONNEL SHOULD NOT BE EXPOSED TO THE MICROWAVE ENERGY WHICH MAY RADIATE FROM THE

MAGNETRON, WAVEGUIDE OR ANTENNA IF THEY ARE IMPROPERLY USED OR CONNECTED. ALL INPUT

AND OUTPUT 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 WHILE THE DEVICE IS ENERGISED.

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 COME IN CONTACT WITH LETHAL HIGH VOLTAGE WHEN WORKING WITH

HV TRANSFORMER, HV CAPACITOR AND MAGNETRON. THEREFORE NEVER TRY TO MEASURE THE HIGH

VOLTAGE. ALWAYS TAKE UTMOST CARE WHEN PERFORMING ELECTRIC

MEASUREMENTS INSIDE THE OVEN.

WHIRLPOOL CONSUMER SERVICES Models 6MT 744/WH

Page 4 of 8

TECHNICAL DATA

Dimensions of cabinet Height : 320 mm

Width : 530 mm

Depth : 450 mm

Dimensions of cavity Height : 205 mm

Width : 330 mm

Depth : 370 mm

Weight Net : 20 kg

Gross : 23 kg

Electrical Voltage : 230 - 240 V

Frequency : 50 Hz

Power Output power : 800 W

Grill : 900 W

Microwave frequency :2450 MHz

Timer : 5 sec. to 90 min.

ERROR CODES

Certain fault conditions are indicated by an error code.

The following codes are included in the self diagnostic functions:

Note : Not all codes are included in all models.

ERR 0 Convection temperature sensor fault.

Not connected or short circuit.

ERR 1 Short circuit in the MW relay.

ERR 6 Weight sensor calibration has not been performed.

ERR 7 Humidity sensor is defect or has not been connected.

ERR 8 Impossible to write to E 2 PROM.

ERR 9 Options have not been set.

ERR A No wheel detected on weight sensor.

ERR B No pulses from the weight sensor or <4267 Hz.

ERR C Fuzzy temperature sensor fault. Not 19-41 °C.

WHIRLPOOL CONSUMER SERVICES Models 6MT 744/WH

Page 5 of 8

EXPLODED VIEW

WHIRLPOOL CONSUMER SERVICES Models 6MT 744/WH

Page 6 of 8

PARTS LIST

Item Part No Description

001 0 4819 442 38913 Cabinet, Black

010 0 4812 310 38447 Mounting kit, Stainless steel

011 0 4819 462 79423 Foot

041 0 4819 417 19547 Hinge left

041 1 4819 417 19548 Hinge right

041 2 4812 535 98059 Shaft hinge

044 0 4819 492 68886 Spring

044 1 4819 404 79353 Support

110 0 4812 498 78099 Handle

117 0 4819 498 78366 Handle for crisp plate

120 0 4812 459 48087 Frame

121 0 4819 442 38917 Door, inner metal part

121 1 4819 535 38153 Lock door

130 0 4819 404 79332 Unit, pushbutton for door switch

234 0 4819 325 18122 Plate / Holder

234 1 4819 462 38878 Casing

244 1 4819 466 89229 Cover for food

246 0 4819 418 79915 Tray

255 0 4819 466 78405 Turntable

264 0 4819 535 79159 Rail

264 1 4819 462 38767 Crosspiece

301 0 4812 276 38059 Button assy

305 0 4819 404 79555 Holder

320 0 4812 453 19914 Panel, control

332 2 4819 410 29162 Button clock-set

333 0 4812 410 28663 Button start-stop

334 3 4812 410 78095 Button Defrost

334 4 4819 411 29817 Knob timer

334 6 4819 410 29171 Button tt-stop

334 7 4812 410 28715 Button plus

334 8 4812 410 78097 Button minus

352 0 4819 130 38083 Display

355 0 4819 280 18029 Buzzer

404 0 4819 131 58019 Magnetron

404 1 4819 462 38875 Conveyor

404 2 4819 462 38874 Air guide

406 0 4819 361 18381 Motor, Turntable

411 0 4819 148 68076 Transformer electronics

412 0 4819 145 78207 Transformer, HT 230V

420 0 4819 121 18299 Capacitor 1,15m F-2100V

420 1 4819 404 78839 Bracket capacitor

421 0 4819 121 18162 Filter, mains

426 0 4819 121 18265 Diode HV

442 0 4819 361 18361 Motor Blower

442 1 4819 462 38876 Cap fan

WHIRLPOOL CONSUMER SERVICES Models 6MT 744/WH

Page 7 of 8

PARTS LIST (Cont.)

Item Part No Description

442 2 4819 462 38877 Inlet fan

443 0 4819 515 28224 Fan wheel

452 0 4819 259 98596 Infrared element 450W 120V

452 1 4819 325 18123 Reflector

485 0 4819 320 28025 Cable, HT

490 0 4819 321 18242 Cable, mains

500 0 4812 214 78391 Control unit

505 0 4812 209 88006 Microprocessor

531 0 4819 101 48142 Potentiometer

561 0 4819 282 48281 Thermostat for magnetron 125 °C

564 0 4819 282 48275 Thermostat 165 °C

617 0 4819 280 68363 Relay 24V DC

617 1 4819 280 68321 Relay

622 0 4819 276 18273 Switch VKS

622 3 4819 276 18448 Switch turntable stop

633 0 4819 276 18336 Switch, door

651 0 4819 134 88199 Lamp oven

774 0 4819 442 38914 Cover, Mica plate upper

774 1 4819 462 88031 Cover, Mica large lower

794 0 4819 532 68686 Gasket ring for Turntable

910 0 4819 502 18372 Screw for Turntable Motor

910 2 4819 502 38274 Screw M4x16St

971 0 4819 252 28125 Fuse T10A

972 0 4819 252 28121 Fuse T100mA

WHIRLPOOL CONSUMER SERVICES Models 6MT 744/WH

Page 8 of 8

CIRCUIT DIAGRAM

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