13 A fused spur powering a boiler

[wams]

Im changing my current 13A fused spur with a new one which is spured off the kitchen ring. the fused spur is spured off a double socket. There are 2 2.5mm2 cables with 2 red and 2 black and 2 earth wires. the flex which powers the boiler has 1 blue, 1 brown and 1 earth wires. I took note of the wiring arrangements before i disconnected the old fused spur and connected the new spur exactly how the old spur was connected but its now not working.

The 2 black wires i connected to the N terminal, 2 reds to the L terminal, the flex wire i connected the blue wire to the other N terminal and the brown wire to the other L terminal and the 3 earth wires to the earthing terminal.

Is that correct or not,

thanks WAMS

 

[Amp David]

You have a fuse in place don't you?

Have connected the load a supply cables to the correct terminals?

 

[sjm]

2 x 2.5 T+E for a spur?? You appear to be confused before you started.
However as Amp David says check for fuse (3 amp max for boiler).
Make sure you have the 2 reds as live (L) IN, SUPPLY or FEED. The 2 blacks as IN, SUPPLY or FEED for neutral (N).
Then Brown as OUT or LOAD live (L) and blue as OUT or LOAD neutral (N). Earths together is fine.

Hope this helps

 

[Amp David]

Probably the spur is on the ring circuit giving him two 2.5s

 

[sjm]

Probably the spur is on the ring circuit giving him two 2.5s

Yes it must be of course, I was just being pedantic sorry.

 

[wams]

I double checked the wiring arrangements and made sure they were terminated correctly.

2 reds (L) in
2 blacks (N) in
blue (N) load
brown (L) load
3 earths sharing the same terminal.

I turned on the circuit breaker and used a Martindale socket tester to test the double socket thats feeds the spur and it the double socket works fine but still no power to the spur.

Puzzled?

 

[jason jones]

Just have a quick check that you've terminated onto the copper of the cables not the insulation.

 

[knasher]

Bit of a long shot, but the fuse hasn't gone has it? Is the new FCU faulty?

 

[Had8Lives]

Could be a faulty switch contact in the Fused spur, I've had it with a brand new socket once. You need to disconnect the New Fused spur and do a continuity test between the supply or feed terminals and the Load or Out terminals. Really you should be doing End to End tests on the ring circuit at the Consumer unit too when you finished installing something that's part of a ring.

 

[wams]

I checked and I did terminate the copper not the insulation. the wires are not long enough to physically get a good eye view of the terminations.

I have plenty of new fuses and tried a couple of them and still no joy.

I did a continuity test with the spur disconnected, everything fine, readings good, then foolishly I did a live test with a cheap digital multimeter from toolstation a Dt-830B set the multimeter 200 ohms and put the probes to L in and N in blew the multimeter.

 

[Des 56]

set the multimeter 200 ohms and put the probes to L in and N in blew the multimeter.

You have sure found out the expense of not setting the meter to the correct range for the relevant test

A cheaper method is to use a pendant flex with a bulb
(Keeping your fingers off the terminals if you forget to switch the circuit off first )


Its a knackered fuse
Its connecting onto insulation instead of copper ( a common one is that )
Its a faulty switch
Once you have done as others have said,you should find the problem
Best to invest in an approved voltage tester and forget multimeters

 

[oldtimer]

Im changing my current 13A fused spur with a new one which is spured off the kitchen ring. the fused spur is spured off a double socket. There are 2 2.5mm2 cables with 2 red and 2 black and 2 earth wires. the flex which powers the boiler has 1 blue, 1 brown and 1 earth wires. I took note of the wiring arrangements before i disconnected the old fused spur and connected the new spur exactly how the old spur was connected but its now not working.

The 2 black wires i connected to the N terminal, 2 reds to the L terminal, the flex wire i connected the blue wire to the other N terminal and the brown wire to the other L terminal and the 3 earth wires to the earthing terminal.

Is that correct or not,

thanks WAMS

Watch what you are doing here I just done a job where the 20 amp double pole switch had 3 sets of cables behind it 1 pair was from the DB 1 pair going to the pump and the other going to the wall thermostat with the pair to the pump was on the load side of the DP switch the red of the supply from the DB was joined to the red of the stat the black from DB was connected to the neutrals supply of the DP switch and the black from the stat was wired to the supply live of the DP switch

 

[Colin Integrale]

Can you get to the terminations in the actual boiler?

If so, test for power there.. Could be an internal fuse or something.

 

[wams]

Im using a neon fused spur and the neon light is not turning on.

 

[oldtimer]

Im using a neon fused spur and the neon light is not turning on.

Wams The job i highlighted above I changed the timeclock room stat and changed the DP neon switch to a DP Switched fuse with neon because the pump had no fuse protection plus the neon was not working