I have a mk sentry breaker and it won't switch off

[Ste griffiths]

I have a mk sentry 5932s b32 breaker that won't switch off .is this common

 

[freddo]

No it's not common. I've only seen it once when the terminal screws were grossly overtightened.

If the switch is moving to the off position but the power is still on:
Is this for a socket circuit? If so it is possible that it is a ring circuit that has been connected across more than one circuit breaker.

 

[Ste griffiths]

No it's not common. I've only seen it once when the terminal screws were grossly overtightened.

If the switch is moving to the off position but the power is still on:
Is this for a socket circuit? If so it is possible that it is a ring circuit that has been connected across more than one circuit breaker.

Yes it is a socket breaker. It is like it has tripped but will switch on but won't switch off. It was installed about 18 months ago

 

[freddo]

Sounds like you will need an electrician to check the circuit breaker /wiring inside the consumer unit.

 

[Ste griffiths]

Sounds like you will need an electrician to check the circuit breaker /wiring inside the consumer unit.

Sounds like you will need an electrician to check the circuit breaker /wiring inside the consumer unit.

W

Sounds like you will need an electrician to check the circuit breaker /wiring inside the consumer unit.

OK thanks. We had a new kitchen installed approx 6 months ago and the electrician had a problem with another breaker doing the same thing. Don't know if he had connected wrong. Would it do the same thing to 2 breakers.

 

[Dustydazzler]

I reckon you could have a back feed issue from another circuit

in 25 years I have only ever come across an mcb that wont turn off once

Have come across a few that wont turn on mind

 

[DPG]

W

OK thanks. We had a new kitchen installed approx 6 months ago and the electrician had a problem with another breaker doing the same thing. Don't know if he had connected wrong. Would it do the same thing to 2 breakers.

What paperwork did you get for the electrical work?

 

[loz2754]

I've come across several MCBs that have had the contacts welded together, due to being subjected to a fault. I could operate the toggle up and down, but power was supplied to the circuit whether on or off.

 

[Ste griffiths]

I reckon you could have a back feed issue from another circuit

in 25 years I have only ever come across an mcb that wont turn off once

Have come across a few that wont turn on mind

OK thanks. I'll get a electrician to check it over. Thanks for your time.

 

[baldelectrician]

I have a mk sentry 5932s b32 breaker that won't switch off .is this common

Another reason I don't buy MK (not installed any MK consumer units etc since 2008 when they changed the range and quality wend downhill)

Not surprised at all.

As others have said- the ring circuit could be wired in to the consumer unit wrongly.
Best to have it checked

 

[brianmoooore]

If the contacts of a MCB has welded themselves together, I would expect to feel much less resistance when moving the toggle to the 'on' position, when compared to another MCB of the same type.