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Hi! Welcome to how-to-repair! This video is just a short video on how to
test elements. There are many types of elements in a cooker,
you have fan oven elements, grill elements, base elements, and of course, hob elements.
Elements only fail in two ways: They either go open circuit; which means your oven will
not be getting any heat, or they go to earth, which means it will be tripping the household
electrical supply every time you turn the cooker on.
Here are three new fan oven elements. The mounting brackets on all these elements are
different, and the way that you remove them in the cooker, can also be different. You
need to see our other videos for this. This is the three turn element, the next one
I'm going to show you, is out of a Bosch, and this is a half-moon element, which is
joined on the side there, making one element , and this element is out of a Belling, which
is a two turn element. You need to check this when replacing elements.
Now we´ll have a look at some blown elements, this one it's actually distorted.
This element you can see an airline fracture on the side here, this element has gone to
earth. This element is clearly blown and gone to earth, it´s actually frizzled all the
way around. This one, quite obvious, it has actually blown
part of the element off. And this final element has just burned out at the top here.
Now we´ll check new elements and old elements, to show you the resistance.
We set the meter to homes, and we´re going to test a new element.
Now the reading that you get will vary depending on the wattage of the element, this is reading
0.2, and we´ll test a couple of old elements here, this one is open circuit, which means
it as blown. This next element is also open circuit. Our last element here was tripping
the household electricity supply, now it´s open circuit, but it´s also got a very high
reading going to earth, but the real only way to test an element to earth is using a
Mega, which I do not expect most people to have in the household.
Elements can also breakdown, has they heat up, in other words, when the element gets
warm, it starts to actually conduct electricity to earth. This twin element is a great example
to show you on the different resistances. Here the all element is giving a reading of
58, but when we read on the joined part, we´re only getting a reading of about 30, which
is about half the amount. Now we´ll have a look at grill elements.
There are two types of grill element; you have a single and a dual. But the dual could
be one side or the other side, or inner and outer, depending on the design of the cooker.
And you will notice that we´re getting different readings on the inside to the outside; this
is because the wattage is different on the element.
This is a single grill element. And there you can see the reading...
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for all tutorials on How to replace these elements.
Thanks very much indeed for watching!