RCD tripping, but with no fault

[roukel01]

Morning All

I was called to a property the other day. Dual RCD board. One of the RCD's is tripping most mornings between 4am - 6am.

Check the board, only 4 circuits connected to that RCD, 1 socket circuit (upstairs sockets), 1 lighting circuit, smoke alarm circuit and outbuildings supply.

Tested all of the circuits seperatley, all readings above 5 Meg Ohms.

Couldn't find anything wrong anywhere, this has only just started to happen too, but it ONLY happens between 4am - 6am. Nothing plugged in thats on a timer etc.
Tested RCD out, and that seemed to be working as it should

Any ideas?

 

[monkeyelectric]

Ask her if you can kip on the sofa until the fault materialises and then quickly test everything are there photocell controlled circuits anywhere? Could be as it gets light the switching off is causing the trip

 

[markc123]

Ask her if you can kip on the sofa until the fault materialises and then quickly test everything are there photocell controlled circuits anywhere? Could be as it gets light the switching off is causing the trip

I always find it depends on the 'talent' of the female client before requesting where to kip :lol:

 

[GLENNSPARK]

Ask her if you can kip on the sofa until the fault materialises and then quickly test everything are there photocell controlled circuits anywhere? Could be as it gets light the switching off is causing the trip

not at 4-6AM...exactly between those 2 times every morning....
its something on a timer...

 

[markc123]

I still think its the boogey man.

 

[GLENNSPARK]

make sure there isn`t an old unused timeclock someware thats still energised...like something hidden in a cupboard someware...

 

[chrish_1977]

When I was at college, my tutor told me of a fault that was on a farm, the electrics to the barn would trip every morning without fail, everything was checked, nothing obvious, then they found it was condensation within the conduit, possibly running down onto the light switch and tripping it all, might be something to add to the list I possibilities

 

[monkeyelectric]

not at 4-6AM...exactly between those 2 times every morning....
its something on a timer...

Depends what neck of the woods you live in, it started getting light at half 5 the other morning, i watched the sun rise over the straights of the river severn it is probably more likely to be something timed though like heating

 

[monkeyelectric]

I always find it depends on the 'talent' of the female client before requesting where to kip :lol:

This is true, sometimes you'd be better off in the van

 

[Earthstore]

It's the fairies, it has to be.
have a good look around and see if you can see fairy dust....

 

[GLENNSPARK]

It's the fairies, it has to be.
have a good look around and see if you can see fairy dust....

aye...or pixy turd...

 

[Darkwood]

Kip in the spare room and get up at 3.30am and wait! ..... customer service ..... is the property fed off a pole transformer very close by???

 

[44ALLAN]

if its 4-6 AM that this manefests itself...then its got to be something timed....
have a look again at whats on them finals.....

1st blackbird/cat/wind hitting the PIR that isn't set properly...........c'mon it's obvious

Damp in fitting of course lol

 

[GLENNSPARK]

1st blackbird/cat/wind hitting the PIR that isn't set properly...........c'mon it's obvious

nowt an air rifle wont fix

 

[44ALLAN]

nowt an air rifle wont fix

my garden is full of bird feeders so no probs..................magpies/cats beware tho as I have a very strong air rifle ( as some pigeons relations can testify too lol

 

[GLENNSPARK]

my garden is full of bird feeders so no probs..................magpies/cats beware tho as I have a very strong air rifle ( as some pigeons relations can testify too lol

baked in a pie?....
or is that blackbirds?