I have had dryer problem before. That was an easy problem to
solve. I removed the heating element and then measured the
resistance. It turned out to be infinite. That means the heating
element was burnt out. Replacing with a new one solved the problem.
This is a different dryer, a Maytag. Again, no heat. I measured
the resistance. It was 12.5 ohm. At 240 volt, that translates to
4600 watt which is in the right ballpark (the label on the panel
says 5600 watt).
I then measured the voltage on the two ends of the heating
element. They are 120 volt.
Since there is electricity and the element is fine, why isn't it
working? Any idea? Thanks.
Very possible a thermal cut out did its job. If the vent is
lint clogged, or some other reason the air flow is reduced,
the thermal cut outs can get hot enough to "open". Look for
oval metal flanges, round black device with two wires.
Disconnect power, and pull one lead. Ohm out the two tabs,
should be zero ohms. If it's infinate, buy a thermal cut out
kit, probably comes with three cut outs. Replace all of them
with the kit. Typically two on the drum, and one on the
vent. And replace the vent tubing in case it's dusty.
Thanks for the reply. There is a thermal cut out on the heating
element housing. I checked its resistance. It is not zero, it is
not infinite, it is 4.5 ohm. Strange. Could it be the culprit?
Stormin Mormon wrote:
They just have to flow current. When they blow, they open up
(infinite ohms). So, 4.5 ohms is considered good.
I have seen three cut outs on many dryers, please keep
looking. Just finding one might not be all there are to
Do these cut outs have two wires only? I found this thing near the
outlet from the drum (beginning of the vent). It is open
(infinite ohm). But it has five terminals and six wires (one
terminal having two wires connected to it).
If it is a thermal cut off, I wonder how it could have been
overheated. Surely that place cannot be as hot as the housing of
the heating element.
Stormin Mormon wrote:
The next step is to test the terminal ends of the dryer element, at a point
when it should be heating. You should be getting 240 volts across the
element. 120 volts, measured to ground, means that one half of the circuit
isn't getting to the element. Now you have to check all the limits and
switches in series with the dead leg, to determine what part is "open"
That's fantastic. Not everyone can reach the infinite. Who is your
Oh. :( But it was still infinite!
Absolutely, and resistance changes with temperature, but I forget
which direction, so you might have more leeway.
120 two different places, from each end to the ground? In that case,
what is the voltage between each other? Should be 240, right?
Or between each other? NOt sure how that could happen. But if so,
check the voltage from each end to the ground. If you have two phase
I think they should both be 120. If you have 3 phase, or 2 phases of
a 3 phase electric system serving your area, they should both be a
little lower than that.
YOu haven't plugged it in someplace else have you? I don't see how
you could do that since the plugs are different, but heck I just spent
15 minutes hunting for smoething that was beeping. I'll believe
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