Samsung MW5490W Support Question
Samsung MW5490W Support Question
Find answers below for this question about Samsung MW5490W.Need a Samsung MW5490W manual? We have 1 online manual for this item!
Question posted by angietod on December 15th, 2014
Loud Buzzing, No Heat
The microwave makes a much louder and buzzing sound. All else is on OK but no heat. Is there a DIY fix?
Current Answers
Answer #1: Posted by BusterDoogen on December 15th, 2014 10:11 AM
BusterDoogen
Member since:
October 30th, 2011 Points: 28,565,407
Member since:
October 30th, 2011 Points: 28,565,407
Go here for trouble shooting possible part failures in a no heat fault in microwaves.
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Related Samsung MW5490W Manual Pages
Service Manual - Page 1
Operating Instructions 4. Specifications 3. Alignment and Adjustments 6. MICROWAVE OVEN
MW5490W / MW5491G
SERVICE Manual
MICROWAVE OVEN
CONTENTS
1. Disassembly and Reassembly 5. Exploded Views and Parts List 8. Troubleshooting 7. PCB Diagrams 9. Precaution 2. Schematic Diagrams
Service Manual - Page 2
... 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: (1) Interlock operation, (2) proper door closing, (3) seal...
Service Manual - Page 3
...damaged by the Interlock Monitor Switch: Replace all solid-state heat sinks are correctly installed.
15. always remove the instrument...from the AC power source before connecting the positive lead; Make sure that all grounds.
6. Any design changes or additions ...components are specified in this manual. Although the microwave oven is especially important for the following at no cabinet...
Service Manual - Page 4
...30 seconds after disconnection. When checking the continuity of the witches or transformer, always make sure that are indicated in the circuit diagram by close-tolerance, safety-related components... Do not attempt to the oven chassis. (Use a screwdriver.)
3. High voltage is present during any components or wiring, always unplug the oven and discharge the high voltage capacitor (See ...
Service Manual - Page 5
...
2-1 Table of Specifications
ITEM TIMER POWER SOURCE POWER CONSUMPTION OUTPUT POWER
MODEL
OPERATING FREQUENCY MAGNETRON COOLING METHOD OUTSIDE DIMENSIONS NET WEIGHT
MW5490W / MW5491G 99 MINUTES 99 SECONDS 120V/60HZ, AC MICROWAVE : 1,450W FROM 100W TO 1000W (10 LEVEL POWER) (IEC-705 TEST PROCEDURE) 2,450MHz OM75PH(31)ESS COOLING FAN MOTOR 2011/32...
Service Manual - Page 6
... Roller
Control Panel Open Door Push Button
297mm
3-1
370mm 517mm
215mm 379mm
Samsung Electronics Clock Button Sets current time.
More/Less Button Inscreases to pause oven ro correct a mistake. Kitchen Timer Button
Start Button Press to be reheated.
Service Manual - Page 7
...
1. Lamp
Cover Air Thermo S/W
1. Remove tow screws from the back panel of air cover. Remove the oven lamp by pulling out from the magnetron and lamp.
2. Fan Motor Screw
NOTE1: When removing the magnetron, make sure the gasket is in good condition.
V. Trans
4-2 Replacement of which are contained in the correct position...
Service Manual - Page 8
... of Door "E"
Following the procedure as shown in the figure, insert and bend a thin metal plate between Door "E" and Door "A" until you hear the 'tick' sound. ¥ Insertion depth of the thin metal plate should be
0.5mm or less.
4-3-3 Removal of Door "C"
Insert flat screwdriver into the gap between Door "A" and...
Service Manual - Page 9
Adjust so that the door has no play between the door and oven.
3. Turn the oven upside down to the drive motor. 9. When replacing the drive motor, be sure to adjust the door parallel to prevent an excessive microwave leakage.
1. Connect all the lead wires from the drive motor. 5. Screw the drive motor cover...
Service Manual - Page 10
... assembly.
4. Remove screw securing the control circuit board. 3. When reconnecting the FPC connector, make sure that the surface of hair dryer is cleaned sufficiently so that the holes on the Plastic...of escutcheon base is recommended for smoother removal.
3. When installing new membrane key board, make sure
that any static electric charge in your body and never touch the control circuit....
Service Manual - Page 11
.... It is present at the high voltage terminals during any oven components or wiring, always unplug the oven from the transformer terminals and check continuity.
2.
Magnetron Antenna...Normal resistance readings are as follows:
MODEL
Secondary Filament Primary
(Room temperature = 20ûC)
MW5490W
88.0 W ± 10% Shows Continuity 0.32W ± 10%
Primary Terminals
Filament ...
Service Manual - Page 12
... Capacitor
1. Isolate the diode from the main circuit by pulling the door assembly. Operate the microwave oven with the meter set to Latch Body, consult the figure.
2. For continued protection against radiation...Monitor switch to check the continuity of the relays after adjustment is necessary.
3. Make sure that the gap between each terminal and chassis should be sure to the ...
Service Manual - Page 13
When heating is finished, stir the water again with accurate equipment. 1. Additional power test should be measured by a factor of 91 times the of Magnetron
Alignment and Adjustments
CAUTION MICROWAVE RADIATION
PERSONNEL SHOULD NOT ALLOW EXPOSURE TO MICROWAVE RADIATION FROM MICROWAVE GENERATOR OR OTHER PARTS CONDUCTING MICROWAVE ENERGY. Make all temperature
and time tests with the ...
Service Manual - Page 14
... 600cc, and place the beaker in a clockwise direction at a rate of the oven. 3. Set survey meter dual ranges to the cabinet door. Place the spacer cone of the probe on the grip of a radiarion preventing device, make a repair record for Microwave Leakage
1.
Remove the outer panel. 2. Using the survey meter and spacer cone...
Service Manual - Page 15
...loose lead wire harness 2. Defective Ass'y PCB
Check fan motor when thermal cutout is dead. Fuse is OK. Defective monitor switch (NOTE1) 4.
Defective power relay or Ass'y PCB
Adjust door and latch switches....'y PCB when LVT is defective. No display and no microwave oscillation. (No heat while oven lamp and fan motor turn on.)
1. Oven does not accept key input (Program)
1.
Service Manual - Page 16
... parts of primary latch switch
2. Defective turntable motor.
1. Microwave output is low;. Misadjustment or loose wiring of the food with metallic trimming. Inform the customer. Ceramic ware trimmed with a lid.
Troubleshooting
6-2 Electrical Mulifunction(continued)
SYMPTOM Oven lamp and fan motor turn on H.V.Transformer 3. Loud buzzing noise can program but timer does not start...
Service Manual - Page 18
...,3RD BASE-PLATE;SGCC,T0.8,W345,L565,MW5896W MOTOR-DRIVE;M2HJ49ZR02,ST-16,50/60HZ COVER-CEILING;T0.3,W114.2,L121.5,-,CE2933 ASSY CONTROL-BOX;120V60HZ,MW5490W,P/WHT ASSY CONTROL-BOX;120V60HZ,MW5491G,D/GRY ASSY DOOR;MW5490,P/WHT ASSY DOOR;MW5491G,D/GRY ASSY POWER CORD;125V13A,AWG16,1350,GRAY,MSP-36 CUSHION...
Service Manual - Page 19
...-SUB;3RD-1.0,MW5897G,BLK DOOR-C;PP(TB53),T2,MW5574W,WHT DOOR-C;RESIN-PP(TB53),T2.0,CE945GF,BL
Exploded Views and Parts List
Q'ty Remarks 1 MW5490W 1 MW5491G 1 MW5490W 1 MW5491G 1 1 1 MW5490W 1 MW5491G 1 MW5490W 1 MW5491G
7-4 Control Parts List
Ref. C 1 DE66-20010A C 1 DE66-20010B C 2 DE61-70076A C 3 DE34-00013D C 3 DE34-00013F C 4 DE72-70161A C 4 DE72-70161B C 5 DE97-00047A C 6 DE93-30402M...
Samsung Knowledge Base Results
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General Support
... Buzzing Sound My Plasma TV Making Normal? If your plasma TV makes is working normally. If you attempt to operate a Plasma TV above . Unfortunately, there is set at approximately 6500 feet (1950 meters) or above or near that you do not hear the buzz, your Plasma TV needs service. However, the loud buzzing should not be so loud... -
General Support
... time 99'90" Fish 4. Meat 2. GW73C Features and Specifications 20L Microwave Oven The SAMSUNG 20L grill oven with controls. General Capacity Size (cu. It also has a epoxy cavity that keeps an account of the cooking time. Fruit Turntable On/Off Sound option Reminder end signal Clock system option(12H/24H) Child lock Cavity... -
General Support
Installation Instructions for installing an over the range microwaves regardless of this appliance requires basic mechanical and electrical skills. Note: Installation instructions are the same for all over -the-range microwave oven. Product failure due to improper installation is not covered under the Warranty. Attachment : SMH7159WC install.pdf The above attachment contains ...
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