[DeTomaso] [NPC] Thermocouple

[Peter Kovacs]

flat white plastic piece with 2 tabs for slide terminals-if this has no continuity between the 2 tabs, its toast.

or 

metal piece with 2 tabs for slide terminals- terminals gain/lose continuity at a given temp which is usually identified on the part itself

This may vary depending on make/model/my memory/BAC (blood alcohol content)
 
Peter Kovacs
Property Equity & Mortgage Mgmt
209 345-6708 
209 523-4919 fx



----- Original Message ----
From: Greg Landwehr <pantera928 at bellsouth.net>
To: detomaso at realbig.com; Mark McWhinney <msm at portata.com>
Sent: Wednesday, February 7, 2007 8:18:48 PM
Subject: Re: [DeTomaso] [NPC] Thermocouple


Okay, what you are talking about is not a thermocouple but a thermal switch
and thermal overload. THermocouples are made of dissimilar metals and
generate an EMF or voltage that varies with the temperature.
A dryer usually has two devices, one is a thermal switch that helps regulate
the dryer temperature. The other is a thermal overload that is only for
protection and when it goes out, it stops the heat, will not reset and must
be replaced. It is best to replace both of these devices at the same time
and they are often sold together. If the thermal overload has tripped, you
should look into you dryer's exhaust and make sure it is not plugged with
lint. Sometimes you have to take the front of the dryer apart to get all of
the lint out.
Greg Landwehr
BTDT any times with both dryers and thermocouples.
----- Original Message -----
From: "Mark McWhinney" <msm at portata.com>
To: <detomaso at realbig.com>
Sent: Wednesday, February 07, 2007 10:07 PM
Subject: [DeTomaso] [NPC] Thermocouple


> This way off topic, but maybe someone has a quick answer.
>
> I am chasing an electrical problem in a clothes dryer.  It appears that
one
> of the two thermocouples is bad, but I want to confirm before running off
to
> replace them.
>
> I assume that at room temperature that the thermocouple is open (no
current
> flows) and at the trigger temperature, the thermocouple closes (current
> flows).  Is that correct or backwards?  I poked around on line, but I
could
> not find a definitive answer.
>
>
>
>
>
>
>
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