No rn reading on downstairs ring

Simon_ · Jul 30, 2011

Fitted 2 new rings and a new CCU. Got readings on r1 r2 rn end to end on both and also R1 R2 R1 RN on both but no rn on downstairs ring, it just shows open circuit. Checked all sockets for loose wiring but all ok. Any suggestions? Thanks

mayfair · Jul 30, 2011

Open circuit cable

tony mc · Jul 30, 2011

I dont understand as you say you tested end to end rn on both circuits which was OK.

As Mayfair has said you have a open circuit in the neautral if you have no end to end rn.

Split the circuit at the CU and test each leg of the neutraluntil you find the break. With a new circuit which you have just put in should be easy.

Octopus · Jul 30, 2011

Simon_ said:
Fitted 2 new rings and a new CCU. Got readings on r1 r2 rn end to end on both and also R1 R2 R1 RN on both but no rn on downstairs ring, it just shows open circuit. Checked all sockets for loose wiring but all ok. Any suggestions? Thanks

Not wishing to be picky but what you've outlined doesn't make sense

Simon_ · Jul 30, 2011

Sorry, when I did rn end to end at the CCU on the ring it showed an open circuit.

Octopus · Jul 30, 2011

Simon_ said:
Sorry, when I did rn end to end at the CCU on the ring it showed an open circuit.

As above, split the ring and track down the fault!

Have fun.

Geoffsd · Jul 30, 2011

Simon_ said:
Got readings on r1 r2 rn end to end on both and also R1 R2 R1 RN on both

but no rn on downstairs ring, it just shows open circuit.

Please clarify.

telectrix · Jul 30, 2011

split ring at CU. wander lead connected to 1 neutral at C. follow sockets with wander lead, break out box, and meter on the N till you lose it. iif you ain't got a wander lead. get a plug top, short N to E then with meter on buzzer at the cu across N and E, plug in sockets till you get no buzz. you have then just passed the break.

Superspark23 · Jul 30, 2011

disconnect 1 neutral at the board, use the live and neutral on your earth loop tester go round until you get nothing, the fault will be at that socket or the one before it.

Amp David · Jul 31, 2011

telectrix said:
split ring at CU. wander lead connected to 1 neutral at C. follow sockets with wander lead, break out box, and meter on the N till you lose it. iif you ain't got a wander lead. get a plug top, short N to E then with meter on buzzer at the cu across N and E, plug in sockets till you get no buzz. you have then just passed the break.

You should market a set of plug tops for this tel, you'd probably make a mint this day in age