Models > MU3051GXAA

MU3051GXAA Samsung Microwave - Overview

Sections of the MU3051GXAA

[Viewing 1 of 1]
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 ...
$36.25
  In Stock
SWITCH-MICRO;125/250VAC, – Part Number: 3405-001033
SWITCH-MICRO;125/250VAC,
★★★★★
★★★★★
(1)
PartSelect #: PS4131191
Manufacturer #: 3405-001033
$29.14
  In Stock
Glass Cooking Tray – Part Number: WB49X687
Glass Cooking Tray
PartSelect #: PS250256
Manufacturer #: WB49X687
$89.03
  Special Order
SPRING-BUTTON;-,HSWR,PI0 – Part Number: DE61-70076A
SPRING-BUTTON;-,HSWR,PI0
PartSelect #: PS4227643
Manufacturer #: DE61-70076A
$14.56
  In Stock
LAMP-INCANDESCENT;125V,2 – Part Number: 4713-001102
LAMP-INCANDESCENT;125V,2
★★★★★
★★★★★
(1)
PartSelect #: PS4132144
Manufacturer #: 4713-001102
$27.83
  In Stock
NUT-FLANGE;-,-,MSWR10,-, – Part Number: DE60-30016A
NUT-FLANGE;-,-,MSWR10,-,
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...
$5.40
  In Stock
SCREW-A;2S-4X10,FEFZY – Part Number: DE60-10082I
SCREW-A;2S-4X10,FEFZY
PartSelect #: PS4226648
Manufacturer #: DE60-10082I
$12.18
  Special Order
SCREW-TAPPING;PH,+,NO,2S – Part Number: 6002-000488
SCREW-TAPPING;PH,+,NO,2S
PartSelect #: PS4133201
Manufacturer #: 6002-000488
$4.18
  In Stock
THERMOSTAT;-,NT-101,250V – Part Number: DE47-20008A
THERMOSTAT;-,NT-101,250V
PartSelect #: PS4226405
Manufacturer #: DE47-20008A
$24.98
  In Stock
FOOT;-,PP(A353),MW5630T, – Part Number: DE61-40017A
FOOT;-,PP(A353),MW5630T,
PartSelect #: PS4227340
Manufacturer #: DE61-40017A
$4.18
  Special Order
Assembly DOOR E;RE-BM5,-,BLK – Part Number: DE92-50076A
Assembly DOOR E;RE-BM5,-,BLK
PartSelect #: PS4236073
Manufacturer #: DE92-50076A
$71.57
  Special Order
SCREW – Part Number: 8204902
SCREW
PartSelect #: PS886587
Manufacturer #: 8204902
$11.59
  In Stock

Questions And Answers for MU3051GXAA

Be the first to ask our experts a question about this model!

Common Symptoms of the MU3051GXAA

[Viewing 1 of 1]
No heat
Fixed by
these parts
Fixing
Show All
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
7 of 10 people found this instruction helpful.
Was this instruction helpful to you?
Thank you for voting!
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
11 of 24 people found this instruction helpful.
Was this instruction helpful to you?
Thank you for voting!
Microwave stopped working - would not heat up
I removed the outer cover and exposed the inner workings. I watched a video on partselect.com to show how to remove and replace the Diode. I followed the instructions and it was very easy to replace.

Unfortunately, the diode was only part of the issue. I ended up replacing the High Voltage capacitor and Magnetron also. Those were a little more complicated but still easy to do.

Now the Microwave works just like new! Cost me less than $100 for all parts.
Parts Used:
High-Voltage Diode
  • louis from PARRISH, FL
  • Difficulty Level:
    Easy
  • Total Repair Time:
    1- 2 hours
  • Tools:
    Pliers, Screw drivers
4 of 10 people found this instruction helpful.
Was this instruction helpful to you?
Thank you for voting!