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WHIRLPOOL CONSUMER SERVICES

Models 6MT 744/WH
June 2001

WHIRLPOOL AUSTRALASIA CONSUMER SERVICES

SERVICE MANUAL
CRISP GRILL MICROWAVE OVEN Model 6MT 744/WH Version 8538 744 53781

Copyright 2000 Whirlpool (Australia) Pty. Limited 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 A. C. N. 003 578 023 Part No. SM7031

WHIRLPOOL CONSUMER SERVICES

Models 6MT 744/WH
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CONTENTS

INTRODUCTION SAFETY TECHNICAL DATA ERROR CODES EXPLODED VIEW PARTS LIST CIRCUIT DIAGRAM

3 4 4 5 6-7 8

WHIRLPOOL CONSUMER SERVICES
INTRODUCTION SAFETY
INTRODUCTION
Before leaving the factory each oven is carefully checked. It must, however, be installed and used correctly.

Models 6MT 744/WH
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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
TECHNICAL DATA
Dimensions of cabinet Height Width Depth Height Width Depth Net Gross Voltage Frequency Output power Grill : 320 : 530 : 450 : 205 : 330 : 370 : 20 : 23 : 230 - 240 : 50 : 800 : 900 :2450 mm mm mm mm mm mm kg kg V Hz W W MHz

Models 6MT 744/WH
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Dimensions of cavity

Weight Electrical Power Microwave frequency 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 ERR 1 ERR 6 ERR 7 ERR 8 ERR 9 ERR A ERR B ERR C Convection temperature sensor fault. Not connected or short circuit. Short circuit in the MW relay. Weight sensor calibration has not been performed. Humidity sensor is defect or has not been connected. Impossible to write to E 2 PROM. Options have not been set. No wheel detected on weight sensor. No pulses from the weight sensor or <4267 Hz. Fuzzy temperature sensor fault. Not 19-41 C.

WHIRLPOOL CONSUMER SERVICES
EXPLODED VIEW

Models 6MT 744/WH
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WHIRLPOOL CONSUMER SERVICES
PARTS LIST
Item 001 0 010 0 011 0 041 0 041 1 041 2 044 0 044 1 110 0 117 0 120 0 121 0 121 1 130 0 234 0 234 1 244 1 246 0 255 0 264 0 264 1 301 0 305 0 320 0 332 2 333 0 334 3 334 4 334 6 334 7 334 8 352 0 355 0 404 0 404 1 404 2 406 0 411 0 412 0 420 0 420 1 421 0 426 0 442 0 442 1 Part No 4819 442 38913 4812 310 38447 4819 462 79423 4819 417 19547 4819 417 19548 4812 535 98059 4819 492 68886 4819 404 79353 4812 498 78099 4819 498 78366 4812 459 48087 4819 442 38917 4819 535 38153 4819 404 79332 4819 325 18122 4819 462 38878 4819 466 89229 4819 418 79915 4819 466 78405 4819 535 79159 4819 462 38767 4812 276 38059 4819 404 79555 4812 453 19914 4819 410 29162 4812 410 28663 4812 410 78095 4819 411 29817 4819 410 29171 4812 410 28715 4812 410 78097 4819 130 38083 4819 280 18029 4819 131 58019 4819 462 38875 4819 462 38874 4819 361 18381 4819 148 68076 4819 145 78207 4819 121 18299 4819 404 78839 4819 121 18162 4819 121 18265 4819 361 18361 4819 462 38876 Description Cabinet, Black Mounting kit, Stainless steel Foot Hinge left Hinge right Shaft hinge Spring Support Handle Handle for crisp plate Frame Door, inner metal part Lock door Unit, pushbutton for door switch Plate / Holder Casing Cover for food Tray Turntable Rail Crosspiece Button assy Holder Panel, control Button clock-set Button start-stop Button Defrost Knob timer Button tt-stop Button plus Button minus Display Buzzer Magnetron Conveyor Air guide Motor, Turntable Transformer electronics Transformer, HT 230V Capacitor 1,15m F-2100V Bracket capacitor Filter, mains Diode HV Motor Blower Cap fan

Models 6MT 744/WH
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WHIRLPOOL CONSUMER SERVICES
PARTS LIST (Cont.)
Item 442 2 443 0 452 0 452 1 485 0 490 0 500 0 505 0 531 0 561 0 564 0 617 0 617 1 622 0 622 3 633 0 651 0 774 0 774 1 794 0 910 0 910 2 971 0 972 0 Part No 4819 462 38877 4819 515 28224 4819 259 98596 4819 325 18123 4819 320 28025 4819 321 18242 4812 214 78391 4812 209 88006 4819 101 48142 4819 282 48281 4819 282 48275 4819 280 68363 4819 280 68321 4819 276 18273 4819 276 18448 4819 276 18336 4819 134 88199 4819 442 38914 4819 462 88031 4819 532 68686 4819 502 18372 4819 502 38274 4819 252 28125 4819 252 28121 Description Inlet fan Fan wheel Infrared element 450W 120V Reflector Cable, HT Cable, mains Control unit Microprocessor Potentiometer Thermostat for magnetron 125 C Thermostat 165 C Relay 24V DC Relay Switch VKS Switch turntable stop Switch, door Lamp oven Cover, Mica plate upper Cover, Mica large lower Gasket ring for Turntable Screw for Turntable Motor Screw M4x16St Fuse T10A Fuse T100mA

Models 6MT 744/WH
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WHIRLPOOL CONSUMER SERVICES
CIRCUIT DIAGRAM

Models 6MT 744/WH
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