Jump to content



Learn appliance repair at the Samurai Tech Academy.  Learn more.  Earn more.


Parts Search
Site Search

FAQs | Store | Memberships | Repair Videos | Academy | Newsletter | Beer Fund | Contact


Welcome to Appliantology.org, the Web's Premiere Appliance Repair Resource!

The world-famous Samurai Appliance Repair Forums


To get started, click here.


Already a member of the Appliantology Academy? Just sign in with your username and password in the upper right-hand corner of the screen.

 






Tip for Testing the Door Switches in a Microwave Oven

Posted by Samurai Appliance Repair Man, in Microwave Oven 24 December 2012 · 1,183 views

microwave switch door
Most microwave ovens have three safety microswitches in the door latch assembly. The diagram below is typical:

Posted Image


These microswitches aren't the most robust switches ever made and can be down right squirrely. They may test good one minute and then look bad the next. When a switch looks flakey like that, trust your meter and just replace it. Chief jumptrout's experience with this is typical:

Had a strange occurrence today on a microwave call.
The lower microswitch that activates closed when the door is closed was the problem.
With the switch in place and the door closed,there was no continuity in the switch.
I removed the switch and did a double test of the switch to verify a bad switch.
When the button was pressed,the switch made momentary continuity.
When completely depressed the switch broke continuity.
If you backed off on the pressure on the button,continuity resumed.
Has anyone seen a situation where this has happened?


Yep i have had that before a few times...nice catch. That can be easy to miss if your not diligent.




Source: Weird microswitch




Like - Plus - Connect - View

Facebook-icon50x50.png google-plus-icon-50x50.png YouTube-icon50x50.png

Find Parts & Diagrams Here

Looking for Appliance Parts? Enter your model number, part number, or even a part description and find it here. 365-day return policy on all parts purchased here, even electrical parts that have been installed!

Search My Blog

Latest Visitors

Random Album Image

LG Washing Machine Control Board with Burn Spot

14 user(s) viewing

0 members, 13 guests, 0 anonymous users


Google (1)


FAQs | Store | Memberships | Repair Videos | Academy | Newsletter | Beer Fund | Contact


Use the Appliantology Parts Finder to Get What You Need!
Enter a model number, part number, type of appliance, brand, or even a part description.
365-day return policy on all parts purchased here, even electrical parts that have been installed!

Your Sometimes-Lucid Host:
Samurai Appliance Repair Man
"If I can't help you fix your appliance and make you 100% satisfied, I will come to your home and slice open my belly,
spilling my steaming entrails onto your floor."


The Appliance Guru | Master Samurai Tech

Real Time Analytics