Models > MW730WBXAA

MW730WBXAA Samsung Microwave - Overview

Sections of the MW730WBXAA

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Keep searches simple, eg. "belt" or "pump".
High-Voltage Diode – Part Number: DE91-70063D
High-Voltage Diode
★★★★★
★★★★★
(4)
PartSelect #: PS4235633
Manufacturer #: DE91-70063D
This high-voltage diode is designed for use within various makes and models of microwaves and is a genuine OEM part that converts alternating current (AC) into direct current (DC). If you notice your ...
$29.79
  In Stock
Order within the next 11 hrs and your part ships today!
SWITCH-MICRO;125/250VAC, – Part Number: 3405-001033
SWITCH-MICRO;125/250VAC,
★★★★★
★★★★★
(1)
PartSelect #: PS4131191
Manufacturer #: 3405-001033
$29.12
  In Stock
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SPRING-BUTTON;-,HSWR,PI0 – Part Number: DE61-70076A
SPRING-BUTTON;-,HSWR,PI0
PartSelect #: PS4227643
Manufacturer #: DE61-70076A
$14.58
  In Stock
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Motor - Synchronous – Part Number: DE31-10154D
Motor - Synchronous
PartSelect #: PS4223986
Manufacturer #: DE31-10154D
$69.28
  In Stock
Order within the next 11 hrs and your part ships today!
Microwave Glass Tray – Part Number: DE74-20102D
Microwave Glass Tray
PartSelect #: PS4234999
Manufacturer #: DE74-20102D
$62.22
  In Stock
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Incandescent Lamp – Part Number: 4713-001102
Incandescent Lamp
★★★★★
★★★★★
(1)
PartSelect #: PS4132144
Manufacturer #: 4713-001102
$38.16
  In Stock
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Flange Nut – Part Number: DE60-30016A
Flange Nut
PartSelect #: PS4226726
Manufacturer #: DE60-30016A
This flange nut is designed for use within various cooking appliances like ranges, microwaves and wall ovens. Flange nuts are typically used to evenly distribute pressure across its application surfac...
$4.66
  In Stock
Order within the next 11 hrs and your part ships today!
Door Lever – Part Number: DE66-90013A
Door Lever
PartSelect #: PS4231371
Manufacturer #: DE66-90013A
$36.97
  In Stock
Order within the next 11 hrs and your part ships today!
LEVER SWITCH;POM – Part Number: DE66-00088B
LEVER SWITCH;POM
PartSelect #: PS4231025
Manufacturer #: DE66-00088B
$5.70
  In Stock
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Body Latch – Part Number: DE72-00138D
Body Latch
PartSelect #: PS4234382
Manufacturer #: DE72-00138D
$29.79
  In Stock
Order within the next 11 hrs and your part ships today!
Roller Guide – Part Number: DE97-00193B
Roller Guide
PartSelect #: PS4240067
Manufacturer #: DE97-00193B
$29.79
  In Stock
Order within the next 11 hrs and your part ships today!
Microwave Thermostat – Part Number: DE47-20173A
Microwave Thermostat
PartSelect #: PS4226479
Manufacturer #: DE47-20173A
$29.79
  In Stock
Order within the next 11 hrs and your part ships today!

Questions And Answers for MW730WBXAA

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Common Symptoms of the MW730WBXAA

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No heat
Fixed by
these parts
Fixing
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Keep searches simple. Use keywords, e.g. "leaking", "pump", "broken" or "fit".
Buzzing noise, no heating of food
Removed control panel, discharged HV capacitor. Removed old diode, tested to confirm failure. Replaced part. Other than the removal of the panel swapping the part was almost as easy as replacing a light bulb.
Parts Used:
High-Voltage Diode
  • Ted from Hudson, NH
  • Difficulty Level:
    Easy
  • Total Repair Time:
    30 - 60 mins
  • Tools:
    Pliers, Screw drivers
9 of 15 people found this instruction helpful.
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Appears to work, but food not heated
The high voltage tired was shorted. I replaced it with a new one, but that did not solve the problem.

You can test the high voltage tired with a voltmeter and a 9 V battery. Search Search for it on YouTube.

You can also test the high voltage capacitor, the high-voltage transformer, and the magnetron with a multi meter. Search for the procedures on YouTube.

I tested all these high-voltage components with a low-voltage multi meter, and they all checked out OK (after replacing the diode). However the microwave still did not heat food.

When working on a microwave it is important to unplug it and also discharge the high voltage capacitor. The capacitor has a 10 megaohm resister to automatically discharge itself, but it may have failed – – so discharge it manually.

In the end I ordered a new microwave.
Parts Used:
High-Voltage Diode
  • Joel from CAMBRIDGE, MA
  • Difficulty Level:
    Difficult
  • Total Repair Time:
    1- 2 hours
12 of 25 people found this instruction helpful.
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Turntable Quit
Snipped four corners off inspection panel,removed one phillips screw and two elect. Connections. Reverse process.
Parts Used:
Motor - Synchronous
  • RICHARD from OKLAHOMA CITY, OK
  • Difficulty Level:
    Really Easy
  • Total Repair Time:
    Less than 15 mins
  • Tools:
    Screw drivers
4 of 6 people found this instruction helpful.
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