Thread
:
Why do Microwave ovens change direction?
View Single Post
#
4
Posted to alt.home.repair
Jon Danniken[_7_]
external usenet poster
Posts: 551
Why do Microwave ovens change direction?
On 01/21/2013 07:22 PM,
wrote:
Why do Microwave ovens that have a rotating platter, change direction?
The platter seems to usually spin counter-clockwise. However, if I turn
it off to stir or check the food, the platter begins to turn clockwise.
It dont change direction once it's running, only when I stop it and
restart. This is the second microwave I've had that does this, and they
were different brand names.
Not only do I wonder *why* they change rotation, but *how*? I'm
guessing they use a shaded-pole motor (I'm not sure), and as far as I
know, those motors only turn one direction. Either CW or CCW.
Unless there's a belt driving them, there is not much room for any other
type of motor in the base of the oven.
They're just little sync motors, like you'd find in a clock. To save
money, they don't have any provision to determine which way they spin,
so direction of travel is determined by pole proximity.
Jon
Reply With Quote
Jon Danniken[_7_]
View Public Profile
Find all posts by Jon Danniken[_7_]