Stat tripping Rcd.

[Homesafe]

This cylinder stat is trpping RCD , is that a sign that its kaput ?
Is a straigth forward swap availlable?
View media item 77265 View media item 77264Thanks.
View media item 77272 this was what I had for me tea yummy.

 

[JohnW2]

This cylinder stat is trpping RCD , is that a sign that its kaput ?

How do you know that it's the stat, rather than the immersion element itself, which is tripping the RCD? Both whole immersion heaters (including stat) and stats alone are very widely available.

Kind Regards, John

 

[Homesafe]

I thought it was one unit the element is more than likely gone but I maybe wrongly said stat.
The whole unit slides out of the cylinder.
What is the price and can an exact replacement be bought?

 

[sparkwright]

If it's the actual element itself that needs replacing, and this is more likely, it won't be particularly straight forward to replace yourself, unless you know what you're doing.

Didn't know they still made those Mini Rolls...

 

[AndyPRK]

Yeah get a whole replacement as it looks old.

You need a box spanner thing to unscrew it once you have turned the hot water supply off to the tank and drained a bit down.

Buy Some heat resistant flex too

 

[Homesafe]

The element slides out so do I need to take the nut of too.
I was thinking it was a dry pocket job?

 

[AndyPRK]

The immersions are available in different lengths and wattages so make sure you get the correct one.

Guessing the immersion length needs to be about 3/4 of the height of the tank.

 

[Homesafe]

I would take out the element from dry pocket and replace llike for like.

 

[JohnW2]

I thought it was one unit the element is more than likely gone but I maybe wrongly said stat. The whole unit slides out of the cylinder.

The stat is the bit in the foreground of your photo with brown and (I think) white-sleeved wires connected to it. If you disconnect the wires, it does, indeed, slide out, but I frankly doubt that is the problem.

The element itself has to be unscrewed from the cylinder (using that massive hexagonal 'nut', which needs a special spanner).

What is the price and can an exact replacement be bought?

You can get immersions (with stats) almost anywhere, from B&Q/Homebase/Wickes etc. to electrical suppliers and plumbing suppliers. They are 'standard', other than the length (so remove the existing one and measure it, then get identical), and are likely to set you back around £10-£20 ... click here for some typical examples.

Kind Regards, John

 

[AndyPRK]

The brown stat slides out and is easy to replace.

Chances are its the immersion element which requires the whole thing unscrewing from the tank.

You could bypass the stat and disconnect to prove the problem.
If it is the stat don't leave it like that!

 

[Homesafe]

When the switch is turned on to heat up cylinder it trips the rcd then, when its off its ok it doesnt trip

 

[JohnW2]

... oh, and if you're in a particularly hard water area, make sure you get one of the 'anti-corrosive' types, designed for such water. An 'ordinary' one won't survive for very long at all (a year or two if you're lucky, IME) with very hard water.

Kind Regards John

 

[Homesafe]

Is there a test to eleminate one or the other?

 

[Homesafe]

We got soft to neutral here

 

[AndyPRK]

The brown stat slides out and is easy to replace.

Chances are its the immersion element which requires the whole thing unscrewing from the tank.

You could bypass the stat and disconnect to prove the problem.
If it is the stat don't leave it like that!

Disconnect brown and white wires.

Pull stat out.

Connect brown and white wires together.
If rcd still trips its the element.