Models > CM1229B

CM1229B Samsung Microwave - Overview

Sections of the CM1229B

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Micro Door Switch – Part Number: 3405-001034
Micro Door Switch
★★★★★
★★★★★
(10)
PartSelect #: PS4131192
Manufacturer #: 3405-001034
This door switch, also known as a safety switch, is a genuine OEM replacement part for microwaves. It is a safety mechanism that sends signals to the microwaves control system, telling it when the doo...
$37.08
  In Stock
Order within the next 12 hrs and your part ships today!
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
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SWITCH-MICRO;125/250VAC, – Part Number: 3405-001033
SWITCH-MICRO;125/250VAC,
★★★★★
★★★★★
(1)
PartSelect #: PS4131191
Manufacturer #: 3405-001033
$29.14
  In Stock
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FUSE-CARTRIDGE;250V,15A, – Part Number: 3601-001197
FUSE-CARTRIDGE;250V,15A,
PartSelect #: PS4131368
Manufacturer #: 3601-001197
$32.39
  In Stock
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C-FILM,LEAD-OTHER;10000N – Part Number: DE59-50002A
C-FILM,LEAD-OTHER;10000N
PartSelect #: PS4226556
Manufacturer #: DE59-50002A
$56.22
  In Stock
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SCREW-MACHINE;HEX,+,WT,M – Part Number: DE60-10199A
SCREW-MACHINE;HEX,+,WT,M
PartSelect #: PS4226706
Manufacturer #: DE60-10199A
$4.18
  In Stock
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THERMOSTAT;-,NT-101,250V – Part Number: DE47-20017A
THERMOSTAT;-,NT-101,250V
PartSelect #: PS4226414
Manufacturer #: DE47-20017A
$26.17
  In Stock
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DIODE-RECTIFIER;1N4007,1 – Part Number: 0402-000137
DIODE-RECTIFIER;1N4007,1
PartSelect #: PS4130124
Manufacturer #: 0402-000137
$5.40
  In Stock
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WIRE-ENAMELLED CU;SN,52M – Part Number: DE39-60001A
WIRE-ENAMELLED CU;SN,52M
PartSelect #: PS4226188
Manufacturer #: DE39-60001A
$4.18
  Special Order
TR-DIGITAL;PNP,300MW,4.7 – Part Number: 0504-001015
TR-DIGITAL;PNP,300MW,4.7
PartSelect #: PS4130212
Manufacturer #: 0504-001015
$4.18
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SCREW-TAPPING;TH,+,2,M4, – Part Number: DE60-10059A
SCREW-TAPPING;TH,+,2,M4,
PartSelect #: PS4226618
Manufacturer #: DE60-10059A
$4.18
  In Stock
Order within the next 12 hrs and your part ships today!
WIRE-CU;H-6,C1020W,PI2.7 – Part Number: DE70-60022A
WIRE-CU;H-6,C1020W,PI2.7
PartSelect #: PS4233733
Manufacturer #: DE70-60022A
$187.65
  Special Order

Questions And Answers for CM1229B

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Common Symptoms of the CM1229B

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No heat
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Doesn’t shut off
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Won’t turn on
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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
7 of 10 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
11 of 24 people found this instruction helpful.
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microwave ran with the door open
First I read through the customer comments, reviews, questions, etc. at Parts Select, which is always a good bet. Then I put "samsung microwave door switch replacement" into youtube and watched some videos. They don't even have to be for Samsung. From what I can tell, many of the appliance companies use the same design and the same junk parts, so watching a GE video is almost the same for example. Watch some videos to familiarize yourself with the steps. There are maybe six to disassemble and install the new part. I replaced all three switches. They are not expensive and to replace 3 is only 5% more work than to replace just one; you have to take the microwave apart in either case. UNPLUG THE MICROWAVE FROM THE WALL. Start taking it apart. I use my phone to take a picture of any thing I remove, unscrew or disconnect, especially wires, BEFORE I disconnect them. Thee pictures serve as a reference when I go to reconnect and reassemble. If I am uncertain then I check the picture. Good luck!
Parts Used:
SWITCH-MICRO;125/250VAC, Micro Door Switch
  • david from WASHINGTON, DC
  • Difficulty Level:
    Easy
  • Total Repair Time:
    30 - 60 mins
  • Tools:
    Screw drivers
6 of 10 people found this instruction helpful.
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