On 9 Feb 2024 13:50:22 GMT, Allodoxaphobia <
trepi...@example.net>
wrote:
>On Thu, 08 Feb 2024 11:02:43 -0500, legg wrote:
>> On Wed, 07 Feb 2024 13:44:59 -0500, legg <
le...@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