Re: Whirlpool dryer heater failure

On Feb 7, 11:19 am, Baron <baron.nos...@xxxxxxxxxxxxxxxxxxxxxx> wrote:
Seán O'Leathlóbhair wrote:
On Feb 7, 2:28 am, Smitty Two <prestwh...@xxxxxxxxxxxxx> wrote:
In article
<a9e49673-7736-400a-9272-5ab40cbb2...@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>,
"Seán O'Leathlóbhair" <jwlaw...@xxxxxxxxx> wrote:

Surely
there are not two simultaneous faults: the element dying and
something wrong in the controller?

I'd be suspect of the test results. The slightest corrosion on a test
lead or the DUT can cause gross errors.

Thanks.

A possibility of course but touching the meter leads together reads a
fraction of an Ohm or zero if pressed firmly together. It also r
reads zero when I check the cut-outs. It is a fairly cheap (not dirt
cheap) digital multi-meter and I doubt that it is very accurate but I
don't expect that it will mistake 0 and infinity.

The terminals of the heater element seem nice and clean. So clean
that I did not think of cleaning them up but I will do that to be
sure.

--
Sean Ó Leathlobhair

Open circuit heating elements are very common. Disconnect any wires at
the ends of the element and check its continuity. Should read about 20
Ohms. If it does then the fault is probably elsewhere.

Thanks. That is the test that I have done and the meter insists that
the resistance is infinity even on the 20MOhm setting. So, this does
seem to say that the element is dead. The puzzle is that the
controller does not seem to be supplying any voltage to the element
suggesting a second fault.

I think that I try to open up the element's casing, it may be
destructive but I don't have a lot to lose. If it is obviously dead
then I will have to hope that there is not a second fault and buy a
new one.

--
Sean Ó Leathlobhair
.

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