Immersion heater thermostat water getting into tube

[terryplumb]

If you remove the stat ,and connect the incoming live directly to the element ,does the RCD still trip instantly ?

 

[Harry Bloomfield]

If you remove the stat ,and connect the incoming live directly to the element ,does the RCD still trip instantly ?

But, don't leave it turned on for too long unsupervised, it might boil.

 

[Harry Bloomfield]

Also; the photo seems to show water staining on the casing from above and above right of the 'mersion

You are seeing something I cannot see.. Can you highlight it?

 

[Keepinghouse]

With the power off and stat disconnected as in your photo, get a multimeter and test resistances L-N, L-E, E-N.

Also; the photo seems to show water staining on the casing from above and above right of the 'mersion

Im getting 19 point something for L-N and no reading for the others.. the water staining is historical

 

[Johntheo5]

That immersion appears to have a separate Hi limit stat attached to the Immersion boss?, Are they still making Immersions with this set up, most of the new ones seem to have it incorporated in the control stat?.

 

[oilhead]

If you gently probe the pocket with an absorbsent probe to clear any water, and it re-appears then you need to replace the whole assembly, draining the cylinder.

 

[denso13]

not running out of the pocket but if insert the thermostat into the pocket it comes out wet

If the pocket was leaking it keep on leaking and run out of the pocket.

 

[polesapart]

Im getting 19 point something for L-N and no reading for the others.. the water staining is historical

That's good for the element itself; do you also have continuity through the removed thermostat terminals and no reading between thermostat terminals and brass body?

 

[denso13]

If you gently probe the pocket with an absorbsent probe to clear any water, and it re-appears then you need to replace the whole assembly, draining the cylinder.

He says he has done and it's still leaking.

 

[polesapart]

Then replace whole immersion with a different make, I suggest Backer.

Seem to remember others reporting quality issues with Tesla.