Pond pump still tripping rcd

[peteelecs]

Pond pump is still tripping RCD which means I loose all power to socket outlets upstairs downstairs and kitchen (with freezer in it).Why doesnt mcb trip instead and what could be causing RCD to trip.Any advice would really be appreciated.

 

[telectrix]

water.

 

[Octopus]

What do you mean by "still tripping"?

 

[SirKit Breaker]

The RCD will trip on earth leakage, the MCB will trip on overcurrent. The 2 devices are completely different and perform different tasks.

Your RCD is tripping due to earth leakage in the pump, probably water as Tel said.

The MCB will only trip if you overload for any length of time, or under short circuit conditions.

Cheers..........Howard

 

[SMB]

The fault isn't due to 'overload' its due to 'earth leakage'.

MCB's work on 'overload'.

RCD's work on 'earth leakage'.

 

[mayfair]

dont talk wet!!!!!

water.

 

[telectrix]

i need a leak. brb

 

[Deleted member 9648]

Can you unplug or otherwise isolate the pump from the circuit?...if it still trips there is a fault on the wiring,if it doesn't the pump is naffed. You can get the pump tested but it would be pretty pointless,if it is tripping the RCD it must have an earth fault.They are not repairable.

 

[telectrix]

dont talk wet!!!!!

you been auditioning for the channel 4 prog. volunteers taking ecstasy?

 

[SirKit Breaker]

The fault isn't due to 'overload' its due to 'earth leakage'.

MCB's work on 'overload'.

RCD's work on 'earth leakage'.

Is that what i said or did i confuse the issue

Cheers........H

 

[mayfair]

Its the way thay ya say it in yorkShire tha confuses us folk

Is that what i said or did i confuse the issue

Cheers........H

 

[SMB]

you been auditioning for the channel 4 prog. volunteers taking ecstasy?

The way im feeling i'll sign up.

 

[peteelecs]

changed fuse and works ok not tripped any more dont make sense

 

[nickblake]

could always do a pat test on it

 

[BlueToBits]

The fuse is unrelated to the tripping. It will likely trip again.
It is possible that the pump may be OK and there is a fault in the wiring to the pump which trips the RCD when it gets wet (rains). Check any connectors or joint boxes. All must be in watertight enclosures. PVC tape doesn't cut it.

 

[dim_bulb]

is that all you did changed the fuse bs1362?
doesnt make sense why the rcd would trip you say everything goes upstairs/downstairs socket is this all on one rcd? could be accumlative leakage?

 

[Octopus]

Last time I saw something like this the pump would pump for a few minutes and then trip the RCD. Turned out the pump was faulty and it was about 5 years old. New pump fitted and problem resolved.

 

[nickblake]

pat test and do a load and leakage test , normally a fault like this is caused by water getting into the motor

 

[peteelecs]

Iknow it makes no sense but all i have done is change the fuse in the plug and it has not tripped since is this possible?

 

[Silly Sausage]

Maybe there was some moisture or something in the plug causing leakage, which you inadvertently removed when changing the fuse?