Scratching my head here with this.

[townfanjon]

Good idea that

Doubt if its imm heater pal , its going to by wiring or most probably stat .

 

[Millsy 82]

What I would do is 240 L-N and 240 L-E if that's good then turn power of check for continuity across thermostat (or overheat stat as sometimes seperate)

If all of those are ok then faulty immersion.

My guess is the stat as they are shocking.

 

[Chalked]

Has the stat got an overheat?

 

[fixitflav]

if the immersion is 19 odd ohm then thats around 12 ish KW which means it ok. I would be looking at the integrity if the wiring. The golden rule with electrical work is knowing what your doing

240V/19ohm = 12amp, not 12kW. Power = 240^2/19 = 3kW, about right for an immersion.

 

[quality]

240V/19ohm = 12amp, not 12kW. Power = 240^2/19 = 3kW, about right for an immersion.

thats what i meant lol

 

[fixitflav]

thats what i meant lol

Thought so

 

[Rob Foster]

As above wire it to a plug, plug in to a known good supply with extension lead, see if it works, then wire the stat in see if it still works. Then report back
Centralheatking

 

[steadyon]

As chalked said above, check to see if the immersion heater has an overheat thermostat. This is an additional thermostat beyond the one you can use to set the temperature. The overheat thermostat will trip if the temperature goes too high (85 + degrees) and does NOT reset itself. You have to push in a button, often through a small hole, to reset it.

 

[gmartine]

You've replaced the element. As well as the reset, check continuity across the stat.

 

[Burger]

HAve hot water cylinder that have changed the immersion. However have changed it over still not working. Have 240v going through the element and all seems correct but still no hot water

Did you manage to sort this?

 

[hammers4spanner]

Yes dodgy neutral in the end

 

[malx42]

Hmm, I thought this was a plumbing forum. So the question is how far are you qualified to discuss these electrical issues?

I had a supposedly qualified plumber testing electrical connections, on a system he installed, and couldn’t get to work, by touching them together and see if they sparked. I forcibly pushed him Out of the house.

His employing company paid for someone qualified to rip out all his electrics and start from scratch.

They also redid a lot of his plumbing.

 

[Harvest Fields]

Qualified enough to do all the wiring that is connected to the boiler! How about you?

 

[malx42]

Qualified enough to do all the wiring that is connected to the boiler! How about you?

Hmm, never said I was, didn’t do it myself, but thought sparking mains wires together, by a supposed professional, to check continuity was not a proper way of doing it!


I was merely saying this is a plumbing, not electrical forum. There are certain secrets that this forum will not discuss with the unqualified, un registered. But hey, ho we discuss electrics.

I thought this might cause a bit of angst.

 

[Harvest Fields]

Nope all good. Gas is regulated a lot more. Also, I know you didn’t say you was. That is why I asked

 

[malx42]

Nope all good. Gas is regulated a lot more. Also, I know you didn’t say you was. That is why I asked

Never really thought about gas being more regulated than electrics. But I suppose the DIYer can’t legitimately connect anything gas, but could do something electric.

So are plumbing and electrical work have similar levels of restriction on who can do what?

 

[Burger]

Plumbing - water regulations but not really tha5 regulated (not heard of many prosecutions)

Wiring regulations - not actually enforceable by law

Gas regulations - enforceable by law

(I think )

 

[malx42]

Interesting on the level of enforceability

Not been involved in house purchase for 35 years till my daughter looked at it. It seems solicitors have no concern what’s done.

A friend had building work done and the firm employed took control of everything. But there were no certificates for the electrics. So the solicitors got them to take out indemnity insurance against any claims due to faulty electrics. So if someone got killed they would be covered!

I don’t know if this was easier / cheaper than getting the electrics tested. Seems immoral to me. So would a solicitor be concerned if there were no certificates for gaswork they suspected / knew had been done.

 

[Burger]

IIRC, the only legal gas document is a landlord gas safety certificate. Everything else is considered good or best practice. I wouldn’t know who’s responsibility it is to prove work they had done was legal.