Immersion

johnnyfruitcake

Looking for help here, haven't dealt with immersions before.

Have a 2/2.85Kw immersion, sink/bath usual set up.

One thing, when it's switched to either bath or sink, both elements are receiving 230v?

Is it knackered?

https://imgur.com/YnY5bWr

Ohms on bath are 28
Ohms on sink are 20

But ohms between the two elements are 48?

meercat

johnnyfruitcake wrote: »

Looking for help here, haven't dealt with immersions before.

Have a 2/2.85Kw immersion, sink/bath usual set up.

One thing, when it's switched to either bath or sink, both elements are receiving 230v?

Is it knackered?

https://imgur.com/YnY5bWr

Ohms on bath are 28
Ohms on sink are 20

But ohms between the two elements are 48?

Check the high limit stat hasn’t tripped

my3cents

Last time I posted about this I made a right balls of it so check everything I say

The neutral is connected to the thermostat and the live is switched so it goes to either one element or the other.

This is a fairly standard switch https://www.mkelectric.com/Documents/English/EN%20MK%20Installation%20Manuals/Wiring%20Devices/Logic%20Plus/Dual%20switch%20instruction.pdf however there is normally only one neutral wire going to the immersion.

Risteard81

Surely the elements are mixed up.

johnnyfruitcake

Here's the pic.

The switch works, but getting 230 on both elements no matter which way it's switched

gctest50

my3cents wrote: »

Last time I posted about this I made a right balls of it so check everything I say

The neutral is connected to the thermostat and the live is switched so it goes to either one element or the other.

.........

No, the blue wire is connected to the thermostat, it might be used as a live


The OP needs to stick their meter on it n see if it's live



( by the sounds of it though, it's being used as a live and the neutral is switched between the two elements)

my3cents

OK so put the cap back on because its correct at the tank end.

So a picture of the switch would be good.

my3cents

gctest50 wrote: »

No, the blue wire is connected to the thermostat, it might be used as a live


The OP needs to stick their meter on it n see if it's live



( by the sounds of it though, it's being used as a live and the neutral is switched between the two elements)

Blue wire goes to the cut out which goes via a brown wire to the thermostat which in turn is connected to both neutrals on the elements so looks OK to me.

johnnyfruitcake

my3cents wrote: »

OK so put the cap back on because its correct at the tank end.

So a picture of the switch would be good.

Hard to see, but the switch looks correct (the incoming is looped to a spur)

my3cents

The Brown and black wires should be going to the right hand switch in my example in the pdf link so the live mains in when on is switched between L1 and L2.

Ediit> didn't see your post with the picture. tbh it all looks find to me what is that actual problem? Don't forget the elements have a common neutral when you test so the 48 ohm result above is to be expected.

johnnyfruitcake

my3cents wrote: »

The Brown and black wires should be going to the right hand switch in my example in the pdf link so the live mains in when on is switched between L1 and L2.

Ediit> didn't see your post with the picture. tbh it all looks find to me what is that actual problem? Don't forget the elements have a common neutral when you test so the 48 ohm result above is to be expected.

Found it, there's another little reset button on the neutral link at the element.

Thanks for the help.

Time for a bath now 😬

my3cents

johnnyfruitcake wrote: »

Found it, there's another little reset button on the neutral link at the element.

Thanks for the help.

Time for a bath now ��

The cap that goes over that normally has a hole or a button that lines up with that button so you don't need to take the cap off to do the reset.

Bruthal

230v will also appear on both elements when the stat set point is reached, as in, when the stat switches off the immersion when the water is heated up to temperature.

Bruthal

johnnyfruitcake wrote: »

Ohms on bath are 28
Ohms on sink are 20

But ohms between the two elements are 48?

Bath would be 20 and sink 28 as a matter of interest there.

johnnyfruitcake

Bruthal wrote: »

Bath would be 20 and sink 28 as a matter of interest there.

A plumber wired it up, I'll change it around

Bruthal

johnnyfruitcake wrote: »

A plumber wired it up, I'll change it around

Its easy to have them the wrong way.

Confirm by having someone switching from bath to sink while you watch the meter. It should speed up on bath compared to sink.

The less other items are on, the easier it is to see the change.

meercat

meercat wrote: »

Check the high limit stat hasn’t tripped

You’ve reset the high limit stat

Risteard81

Bruthal wrote: »

Bath would be 20 and sink 28 as a matter of interest there.

I mentioned this quite a few posts ago.