# My Funny Microwave

**URL:** <https://boards.straightdope.com/t/my-funny-microwave/163440>\
**Category:** Factual Questions\
**Created:** [March 22, 2003, 11:01pm UTC](https://boards.straightdope.com/t/my-funny-microwave/163440 "2003-03-22T23:01:24Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![aka\_10003](https://avatars.discourse-cdn.com/v4/letter/a/87869e/32.png) [@aka\_10003](https://boards.straightdope.com/u/aka_10003)\
**Post date:** [March 22, 2003, 11:01pm UTC](https://boards.straightdope.com/t/my-funny-microwave/163440/1 "2003-03-22T23:01:24Z")

</div>

My microwave Oven works just fine, except that once in a while it causes the fuse to jump.

The "funny’ part, is that it only happens on “de-frost” or “medium”, never on the “high” setting. Does that make sense?

---

<div class="post-metadata">

**Author:** ![mangeorge](https://avatars.discourse-cdn.com/v4/letter/m/d78d45/32.png) [@mangeorge](https://boards.straightdope.com/u/mangeorge)\
**Post date:** [March 22, 2003, 11:11pm UTC](https://boards.straightdope.com/t/my-funny-microwave/163440/2 "2003-03-22T23:11:02Z")

</div>

Jump? Is that like blow, or trip?  
The defrost and medium settings “pulse” the power, not lower it. It turns on and off at full power. So the fuse sees more surges from the magnetron starting.  
Peace,  
mangeorge