Hi
On Sunday I had a problem with electrics on a 'new faulty replacement combi boiler pump'.
I contacted the 'Electrics UK' forum, who were helpful.
There is a few outstanding questions that as Gas Safe/Corgi you hopefully might be able to help with.
Since Sunday the pump company have delivered another replacement (and picked up faulty unit).
The new pump was faulty because on the electrical side on the mains connector block the orange push
down connectors that open to clamp the soldered end wires - two of these would not open and were very
weak with no spring action.
The direct replacement pump is UPS2 Grundfos 15 - 50/60 130 6m.
This REPLACEMENT SECOND NEW PUMP has come supplied with a long "suppression lead".
This long lead will make it easier to wire up the pump away from boiler but this throws up another question.
THESE QUESTIONS - THE ELECTRICAL UK FORUM COULDN'T GIVE A DEFINITE ANSWER TO
When I went to disconnect the OLD pump I saw that the LIVE and NEUTRAL wires
were connected the wrong way round (live in neutral connector).
I was going to connect as the original pump was wired up i.e. the wrong way round but then I thought if I
do this and it blows the new pump I wouldn't be able to send the pump back as faulty.
It has been wired up back to front for at least 11 years, so it was working ok.
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I'm sure somewhere long ago that I read that swapping the 'neutral and live' around in certain
situations this is possible - but I didn't want to take the chance.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
So I'd appreciate just a few more answers;
1)
Should I follow the WRONG way round wiring i.e. live to neutral connection and neutral to live
connection OR WIRE UP as it should be i.e. NEUTRAL to NEUTRAL etc?
2)
When I connect the long suppression lead to the main cable coming from the boiler I am going
to use a CHOC BLOCK that I have here for Halogen lighting.
I cannot see any other way of connection directly to the boiler.
Or is there another way?
3)
Does anyone know what this suppression lead does?
The boiler is a: ALPHA CB28 LPG
If you want to read the original post it is under;
HELP WITH "SLOW BLOW FUSE" AND CONFUSING SITUATION
(posted Mon Sep 22 2014 12:12 pm)
Many thanks in advance.
Regards
Stephen