Related Manuals for Midea EM044KIT-P00K
Summary of Contents for Midea EM044KIT-P00K
- Page 1 MICROWAVE OVEN MODEL: EM044KIT-P00K (1000W 120V60Hz) SERVICE MANUAL CAUTION BEFORE SERVICING THE UNIT，READTHE SAFETY PRECAUTIONS IN THIS MANUAL...
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Page 2: Table Of Contents
TABLE OF CONTENTS page INTRODUCTION AND SAFETY PRECAUTIONS----------------------- --------------- -- 1-1 INTRODUCTION ---- ------------------------------------------------------------------------------1-2 SAFETY PRECAUTIONS------------------------------ -------------------------------- ---------1-3 SCHEMATIC DIAGRAM ---------------------------------------------------------------------------- HEATING PRINCIPLE OF MICROWAVE---------------- ---------------------------------------3-1 TROUBLESHOOTING PROCEDURES ------------------------------------------------------------4-1 COMMON BREAKDOWN AND MEANS OF REPAIRING -----------------------------------5-1 CRITICAL PARTS SERVING------------------------------ -------------- -----------------------------6-1 -------------- -----------------------------7-1... -
Page 3: Introduction And Safety Precautions
PRECAUTIONS TO AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY A. Do not attempt to operate this oven with the C. Do not operate the oven if it is damaged. It is door open since open-door operation can particularly important that the oven door close result in harmful exposure to microwave properly and that there is no damage to the (1) energy. -
Page 4: Introduction
17. Liquids, such as water, coffee, are able to 18. VENTILATING HOODS overheated beyond the boiling point without Clean Ventilating Hoods Frequently- appearing to be boiling. Visible bubbling or boiling Grease should not be allowed to when the container is removed from the microwave accumulate on hood or filter oven is not always present. -
Page 5: Safety Precautions
SAFETY PRECAUTIONS 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 source, and make repairs as necessary. -
Page 6: Schematic Diagram
SCHEMATIC DIAGRAM... -
Page 7: Heating Principle Of Microwave
THE HEATING PRINCIPLE OF MICROWAVE Microwave is one kind of radio wave whose wave length is very short, frequency is very high. Therefore, it is called ultrahigh frequency electromagnetic wave. Microwave can heat food mainly result in the mutual affect of the food in the microwave field and microwave field itself. -
Page 8: Troubleshooting Procedures
TROUBLE SHOOTING PROCEDURES Before overhauling a microwave oven, you should judge the breakdown and the cause correctly, then you can repair it with corresponding ways. The overhauling must be proceed in order, any hasty conclusion is not recommendable, otherwise overworking would be done when repair. The microwave oven may occur compound breakdown due to all kinds of different reasons, thus, when overhaul, they all should be taken into consideration. - Page 9 (2) Measure it with the 2500V alternating grade of model 500 multi meter. One rod of the multi meter connect the iron core of the transformer, the other rod connect the secondary high voltage plug(FIG.5-4).The multi meter reading should be about 2100v(when measure, be careful with the high voltage).If no voltage at all, it indicates that the transformer has broken, and should be replaced by a new one.
- Page 10 (5) If the high voltage diode is OK, then check the forwarding plug of the transformer to see whether it is enough to 120v.If it is not enough, check the micro-switch of the time and power distributor. Connect the two rod of the multi meter to the 1.2 place of the timer with Rx1k grade.
- Page 11 (4) There are filth between the door and the oven. (5) The door and the oven are serious loosed after the door closed. Magnetron Fig.5-13 (6) The crack of the door shielding net cover. Before repairing, check whether the above listed point are existed, if not, can you start the microwave oven. Place a graduate of about 275ml water at the middle of the glass tray, close the door, time set at 3 minutes, power at high, makes the oven operating in normal.
- Page 12 then adjust the door hook and the switch holder the loose between the door and the oven, then measure the leakage with microwave leakage measure again. If the leakage still exceed standard requirement, then inspect whether the right oven is even or not, if not, smooth it. Then adjust the door and the oven to eliminate their loose to the ultimate.
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Page 13: Common Breakdown And Means Of Repairing
COMMON BREAKDOWN AND MEANS OF REPAIRING PHENOMENON CAUSE REPAIRINGMEANS 1. fuse broken 1. Change a new fuse. 2. The primary and secondary winding of the 2. Change transformer are short-circuited. transformer. 3. Change a new capacitor. 1.When starting the oven, 3. -
Page 14: Critical Parts Serving
CRITICAL PARTS SERVICING 1. IMPORTANT THINGS TO DO PRIOR TO CRITICAL PART SERVICING The following instructions are CRITICAL to the owner’s safety. Be sure to follow all the instructions. Contact the manufacturer of distributor if you have any question. 1.1 If the oven is operative prior to servicing a Microwave Leakage Test (Microwave Emission Check) should be performed prior to servicing the oven. -
Page 15: Safety Checks And Tests After Serving
Door and Hinge Replacement and Adjustment Pull the power cord from the outlet. Check the door for warped or damaged areas. Check the hinges for broken or worn areas. Check other areas such as cracked from glass, broken door latched, worn/cracked viewing screen and etc. -
Page 16: Microwave Leakage Test
Microwave Leakage Test In the event that magnetron, door, or hinge has been replaced or readjusted, a microwave test as follows must be preferred: Test instruments required: Microwave Survey Meter, Holaday Model HI-1710 or equivalent 600 ml glass beaker Precautions Turn the power off (or unplug the oven) immediately if the oven fails this test. - Page 17 8 -1...
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