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tech / sci.electronics.repair / Re: thermal switch

SubjectAuthor
* thermal switchlegg
+- Re: thermal switchlegg
+* Re: thermal switchohg...@gmail.com
|`- Re: thermal switchlegg
`* Re: thermal switchlegg
 `* Re: thermal switchAllodoxaphobia
  `- Re: thermal switchlegg

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thermal switch

<imj7siln33nt7dq8i0mkv0mo9a99u7sp3v@4ax.com>

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From: legg@nospam.magma.ca (legg)
Newsgroups: sci.electronics.repair
Subject: thermal switch
Date: Wed, 07 Feb 2024 13:44:59 -0500
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 by: legg - Wed, 7 Feb 2024 18:44 UTC

A thermal switch rated 110C/0C - does this mean freezing is
required to rest it?

Others rated 150C/60C will self-reset at room temp.

RL

Re: thermal switch

<56k7sih9n3pfp7rk7rsfclbvum9qljrp8l@4ax.com>

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From: legg@nospam.magma.ca (legg)
Newsgroups: sci.electronics.repair
Subject: Re: thermal switch
Date: Wed, 07 Feb 2024 13:52:17 -0500
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 by: legg - Wed, 7 Feb 2024 18:52 UTC

On Wed, 07 Feb 2024 13:44:59 -0500, legg <legg@nospam.magma.ca> wrote:

>A thermal switch rated 110C/0C - does this mean freezing is
>required to rest it?
>
>Others rated 150C/60C will self-reset at room temp.
>
>RL

I've tried to rest two by taking them to ~ -18C.

One I originally tripped on the bench using a heat gun.
The other was tripped open in a microwave oven.

Are these supposed to reset?

RL

Re: thermal switch

<1bb164b9-beef-4779-9aa4-0a7e8227961fn@googlegroups.com>

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Subject: Re: thermal switch
From: ohger1s@gmail.com (ohg...@gmail.com)
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 by: ohg...@gmail.com - Wed, 7 Feb 2024 21:35 UTC

On Wednesday, February 7, 2024 at 1:44:09 PM UTC-5, legg wrote:
> A thermal switch rated 110C/0C - does this mean freezing is
> required to rest it?
>
> Others rated 150C/60C will self-reset at room temp.
>
> RL

They reset on their own assuming it's a thermostat and not a fuse.

Re: thermal switch

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From: legg@nospam.magma.ca (legg)
Newsgroups: sci.electronics.repair
Subject: Re: thermal switch
Date: Wed, 07 Feb 2024 17:55:33 -0500
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 by: legg - Wed, 7 Feb 2024 22:55 UTC

On Wed, 7 Feb 2024 13:35:48 -0800 (PST), "ohg...@gmail.com"
<ohger1s@gmail.com> wrote:

>On Wednesday, February 7, 2024 at 1:44:09?PM UTC-5, legg wrote:
>> A thermal switch rated 110C/0C - does this mean freezing is
>> required to rest it?
>>
>> Others rated 150C/60C will self-reset at room temp.
>>
>> RL
>
>They reset on their own assuming it's a thermostat and not a fuse.

Microwave cabinet sensors swithing 12A 120VAC.

Same symbol and part family as two other types
used w/35C reset, measuring box wall tmps.
They test as resetable.

KSD100LC0
PW4261N100

GE doesn't issue part numbers in service manual.

RL

Re: thermal switch

<nku9sil43uco7ahrm1dvjfns28a0d54e97@4ax.com>

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From: legg@nospam.magma.ca (legg)
Newsgroups: sci.electronics.repair
Subject: Re: thermal switch
Date: Thu, 08 Feb 2024 11:02:43 -0500
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 by: legg - Thu, 8 Feb 2024 16:02 UTC

On Wed, 07 Feb 2024 13:44:59 -0500, legg <legg@nospam.magma.ca> wrote:

>A thermal switch rated 110C/0C - does this mean freezing is
>required to rest it?
>
>Others rated 150C/60C will self-reset at room temp.
>
>RL

I opened up one of them and the construction was of a resettable
part. I guess a zero degree reset is less reliable (or practical).

RL

Re: thermal switch

<slrnuscbct.275n.trepidation@vps.jonz.net>

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From: trepidation@example.net (Allodoxaphobia)
Newsgroups: sci.electronics.repair
Subject: Re: thermal switch
Date: 9 Feb 2024 13:50:22 GMT
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 by: Allodoxaphobia - Fri, 9 Feb 2024 13:50 UTC

On Thu, 08 Feb 2024 11:02:43 -0500, legg wrote:
> On Wed, 07 Feb 2024 13:44:59 -0500, legg <legg@nospam.magma.ca> wrote:
>
>>A thermal switch rated 110C/0C - does this mean freezing is
>>required to rest it?
>>
>>Others rated 150C/60C will self-reset at room temp.
>
> I opened up one of them and the construction was of a resettable
> part. I guess a zero degree reset is less reliable (or practical).

Maybe the "0C" (in 110C/0C) was a clumsy way to infer it's not resettable.
Afterall, who has ever heard of thermal switches operating around 0C ?
Bi-metal switches - yes.

Jonesy
--
Marvin L Jones | Marvin | W3DHJ.net | linux
38.238N 104.547W | @ jonz.net | Jonesy | FreeBSD
* Killfiling google & XXXXbanter.com: jonz.net/ng.htm

Re: thermal switch

<2n2dsih430tsli5rfk3u7ensi1g31hk6od@4ax.com>

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From: legg@nospam.magma.ca (legg)
Newsgroups: sci.electronics.repair
Subject: Re: thermal switch
Date: Fri, 09 Feb 2024 15:41:45 -0500
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 by: legg - Fri, 9 Feb 2024 20:41 UTC

On 9 Feb 2024 13:50:22 GMT, Allodoxaphobia <trepidation@example.net>
wrote:

>On Thu, 08 Feb 2024 11:02:43 -0500, legg wrote:
>> On Wed, 07 Feb 2024 13:44:59 -0500, legg <legg@nospam.magma.ca> wrote:
>>
>>>A thermal switch rated 110C/0C - does this mean freezing is
>>>required to rest it?
>>>
>>>Others rated 150C/60C will self-reset at room temp.
>>
>> I opened up one of them and the construction was of a resettable
>> part. I guess a zero degree reset is less reliable (or practical).
>
>Maybe the "0C" (in 110C/0C) was a clumsy way to infer it's not resettable.
>Afterall, who has ever heard of thermal switches operating around 0C ?
>Bi-metal switches - yes.
>
>Jonesy

The active element is a bimetalic disc.

The detection temperature is curious - locations on internal walls -
fire detection? In series with AC line power, one before and one
after the operating interlock.

Resetting at zero would allow repair rather than replacement, but
a service cycle anyways. Can you imagine advice to end user or service
techs - 'Stick in deep freeze for 30 minutes.'

Hardly pracyical in built-in units like the JVM1750. I suppose there's
always freeze-spray . . . .

HEY - THAT WORKED !

What an idiot I am.

RL

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