Well...update:
Installed the new pump - and no trips so far after an afternoon of it operating.
Not too sure why it was tripping the breaker on the consumer board, but a new pump seems to have solved it...(so far..!)
Hope it doesn't trip later on now that I've said that!!
Cheers
The cable was joined in about the last 5m apparently as the outlet was moved about a further 5m away from the original position.
Do you think it could be the join that's causing problems?
ban-all-sheds
Thanks very much for that. Makes complete sense.
Yes - the RCD has a 30ma trip current rating.
Are you saying then, that the MCB could be tripping because there is a live/short maybe in the armoured cable running to the pump, or is it the pump could be faulty drawing too...
The only other load is for the garage bits and pieces...strip lights...radio etc...
...all low load stuff.
In fact, I don't have anything else turned on sometimes in the garage, so the pump would be the only load being used.
Could you explain in simple easy language the difference then in...
that's interesting ban-all-sheds.
The fuse in the pump is a 13amp, but I'm not sure the rating of the pump as it's quite old and the decal has worn off it.
It's not too big, so I can't imagine it's drawing too much power. 1000w max I would have thought.
Hi ban-all-sheds
Yes - it's the 40a trip switch on the consumer board that's tripping, not the RCD in the garage which the pump is plugged in to.
Cheers
Thanks guys.
Sorry - my mistake.
RCB - I think of reverse current breaker (as that's what it does)!
I mean RCD - Reverse current device.
The consumer board has a Multi 9 (Vigl C45) 40a 240/415v M6 device
and the spur socket is an "Eterna RCDFSMC" 40m/s trip speed.
Not too sure...
Hi guys
I have a 10a RCB on my consumer board feeding my garage.
In the garage (from the 10a feed) I have a socket spur RCB which feeds armoured cable to a submersible pump that should turn on to pump out water from the bottom of my garden.
Quite frequently now, the RCB on the consumer...
Ok
Update for any of you that may have the same problem, or searched this is the forums.
The thermostat on the boiler was set to about 3 o'clock position by the British Gas man. He said that's where it should be left.
Today - I tried turning it up to max. ie:9 o clock position...
Thanks superdupergasman
I can't believe that the boiler is designed in such a way that it will cycle the pump off/on every time the boiler fires up...!
What a stupid system....
..isn't that just going to knacker the pump quicker than normal.
It's so annoying now that I'm conscious of...
Hmmm...not sure now...!
I've taken a volt reading from the terminals that the pump is connected to. 240v drops off for the 2 sec period.
I'm thinking you are talking about another point aren't you...?!
nickso
The scenario you describe is exactly what happens.
The switched live does drop it's 240v when the pump stops for 2 secs.
Because of this, the only thought was a PCB fault. I've had 2 pcb's and the same fault occurs.
The pump is connected to the wiring loom in the boiler...