Re: Whirlpool dryer heater failure

In article
<d9b02224-cd2b-4e0a-b441-75cbad06fea6@xxxxxxxxxxxxxxxxxxxxxxxxxxx>,
"Seán O'Leathlóbhair" <jwlawler@xxxxxxxxx> 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

Mistaking zero and infinity is a common meter problem, due to corrosion
as I suggested. If the meter probes are clean, what about the
connections on the machine? You're looking at a heating circuit; heating
tends to oxidize metals. Did you scrape them with an x-acto or similar?
The only reason I'm being a pest about this is that I agree with you
that it doesn't seem reasonable in this case that you have double
trouble. I'd also run a cheater cord from the wall to the heater element
as a verification test.
.