Perbaikan Oven Microwave

https://ars.repair/microwave-repair/what-caused-a-microwaves-ceramic-fuse-to-blow/

Power Surge
A non-functioning cooling fan that caused overheating
Short in the controller
Short in the power cord
Short in the magnetron
Short in the high voltage diode
Faulty door interlock switches
Misaligned door

https://www.hunker.com/13407903/what-causes-a-microwave-ovens-fuses-to-blow

https://fredsappliance.com/service/microwave-keep-blowing-fuses/

https://www.repairfaq.org/REPAIR/F_micfaq4.html#MICFAQ_019

7.3) Testing and replacing of interlock switches

With the oven unplugged, put an ohmmeter across the AC input just before the
interlocks (but beyond the power relay or triac if it precedes these).  Open
and close the door slowly several times - there should be no significant
change in resistance and it should be more than a few ohms.  If it approaches
zero while opening or closing the door, the interlock switches and door
alignment should be checked.  (You may need to disconnect one side of the
transformer primary since its resistance is a fraction of an ohm.  Refer to
the schematic pasted inside the cover.)

Replace with switches having a precisely identical fit and equal or better
electrical specifications (terminal configuration, current rating).  When
removing the old switch make a note as to where each wire goes.  Check
the embossed marking on the old switch - don't depend on location as your
replacement might just have a different arrangement.  Make sure the new
switch aligns correctly with the actuating mechanism and then check for
correct electrical operation with an ohmmeter before applying power.

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