Re: Whirlpool dryer heater failure

Seán O'Leathlóbhair wrote:

On 7 Feb, 11:58, Baron <baron.nos...@xxxxxxxxxxxxxxxxxxxxxx> wrote:
Baron wrote:
Seán O'Leathlóbhair wrote:

On Feb 7, 11:19 am, Baron <baron.nos...@xxxxxxxxxxxxxxxxxxxxxx>
wrote:

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.

Since you have confirmed the the heater is O/c, a simple test is to
connect an ordinary light bulb in place of the heater.  If you have
another circuit fault it will be obvious because the bulb will fail
to light.

That's an idea. But if it can light the bulb then the meter should
have detected the voltage. However, it would probably be easier to
run a longer test using a bulb than the meter.

Very often a meter can mislead you !

By the way where in the UK are you ?

Midlands, a bit south of Birmingham.
I'm 100/120 miles north of you near York. Daughter live in Brum though.

Anyway back to the plot. :-) I don't know that particular machine, but
I agree with another poster that said there may be a safety circuit
connected with the motor. I have never seen one though !

Commonly the motor will have three wires feeding it. One of them should
be earth. That one will be connected to the case of the motor and
indeed to the cabinet of the whole machine and in turn to the big pin
on the mains plug.

So lets check where the power is going. Use your meter on the
continuity setting and connect the black meter lead to the right hand
pin on the mains plug. Trace the neutral/blue wire into the terminal
box where it enters the machine. You should get continuity to that
point.

Tell me what you find.
--
Regards:
Baron.
.

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