imersion heater thermostat fault finding

[telectrix]

suggest clamping feed to heater and waiting for it to heat up. see what happens.

 

[Midwest]

I think that is a bit unfair.

I'd like to hear what you would have done differently?

Don't mind davesparks, he's like that with everyone.

I think you need to go back to basics, back to the beginning.

If your CU has been damaged by this issue, that needs repairing or replacing.

Then get your immersion final radial circuit repaired, tested and inspected, so its functioning correctly, without any load attached to it.

After you have done all that, then you can move onto the immersion heater itself, and its ancillary controls.

Still think, you should admit defeat, and employ a competent electrician, which if your CU needs replacing, you'll have to do anyway.

 

[PEG]

Hi,i think you have done more than expected,to help the in-laws,it may be time for help.
As for if a "normal" spark could tackle the tank side...well,a normal one may have a go,but "special" ones,always have an 86mm spanner and some towels...

 

[DefyG]

What is happening to the fuse wire as that can tell you what sort of fault you are looking for.
Have you re-tested since replacing the timer as its possible that the element was good then but faulty now?
Is the flex between the timer and the element good, not squashed, burnt or damaged in any way?
Are you sure the time switch is connected correctly and you haven't created a dead short as soon as the timer operates, maybe contacts welded together causing permanent dead short?