Hydroboil trips mcb ???????????????????????????

G

Greengo1990

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• Oct 11, 2017

• #1

hyrdoboil trips mcb? Element is 2.4kw ohms test was 23 Ohms and IR was 300 odd. Had disconnected element from thermostat and power did not trip but element seemed perfect

 

PEG

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• Oct 11, 2017

• #2

Hi,what else is on the same circuit,and 300 odd what?

Sometimes,it takes a few cycles or change of duration,to tempt a faulty element.

 

OP

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Greengo1990

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• Oct 11, 2017

• #3

PEG said:

Hi,what else is on the same circuit,and 300 odd what?

Sometimes,it takes a few cycles or change of duration,to tempt a faulty element.

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That seems to be all on circuit. IR was 300Mohms when the customer had turned the water boiler on it tripped mcb straight away

 

dmxtothemax

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• Oct 11, 2017

• #4

Elements can behave strangly sometimes !
replace it anyway

 

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stevethesparks

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• Oct 12, 2017

• #5

Whats the size and type of mcb?

 

Wilko

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• Oct 12, 2017

• #6

Have you seen it trip? If it's repeatable try a toaster in that outlet and see what happens. If it trips too then perhaps N-E cable fault somewhere.

 

Pete999

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• Oct 12, 2017

• #7

stevethesparks said:

Whats the size and type of mcb?

Click to expand...

What Steve said ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

 

T

Toneyz

• Oct 12, 2017

• #8

Wilko said:

Have you seen it trip? If it's repeatable try a toaster in that outlet and see what happens. If it trips too then perhaps N-E cable fault somewhere.

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The O.P. is saying MCB N-E fault doesn't usually trip a MCB unless incorrect info.

 

Wilko

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• Oct 12, 2017

• #9

anthonybragg said:

The O.P. is saying MCB N-E fault doesn't usually trip a MCB unless incorrect info.

Click to expand...

Oops ... can't imagine what I was thinking