[Shop-talk] Bad breaker?

Jimmie Mayfield mayfield+shoptalk at sackheads.org
Sat Feb 1 10:34:15 MST 2025


The fly in the ointment is the k&t wiring.  Will a GFI or AFI breaker 
work reliably with k&t?

J


On 2/1/25 11:36, Jim Franklin wrote:
> If you shut off the breaker, confirm there is no voltage on the output 
> side of it, and test for continuity between the breaker output and 
> ground, you should get a good idea if the breaker is actually doing 
> its job, i.e. there's short somewhere. If you don't see continuity, 
> it's an unknown, in which case I'd replace it with a GFI breaker 
> (since you want to do that anyway) and see what happens.
>
> jim
>
>> On Feb 1, 2025, at 11:03 AM, Tim . <tims_datsun_stuff at outlook.com> wrote:
>>
>> The breaker that controls my sink grinder's outlet seems to have 
>> failed. It won't reset.
>>
>> It is simply a matter of replacing the breaker with a new one or 
>> might there be another issue in the circuit? Near as I can tell that 
>> breaker only has one outlet on it. (house was built in 1905 or so and 
>> still has active knob and tube. ffs. And there are at least four 
>> breakers controlling our tiny kitchen.) Also, the outlet is not GFI 
>> so I want to replace it but can't really fit under the sink to do it.
>>
>> So, can I just replace the breaker or should I bite the bullet and 
>> call and electrician?
>>
>> Thanks
>> tim
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>
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