Boost button not working, electric immersion tank

[seco services]

15 don't make any sense

 

[richardspooner]

Yes I realise that...

I tested across the stat and also on the terminals........was fluctuating 15-16.

 

[seco services]

can you do the other end the switch end.
none off them terminals on that element look fit to get a good reading.

check the switch see if you get a mains power reading.

 

[richardspooner]

ok........I'll try that now.

At least A&E is quiet on a Saturday night!!

 

[seco services]

ok........I'll try that now.

At least A&E is quiet on a Saturday night!!

don't you be sure

 

[richardspooner]

Neutral and Live on here?

 

[richardspooner]

right........well that helped a little.........voltage before the switch was normal. After the switch it was dropping to 15v....

I'm going to remove the switch from the circuit tomorrow and run the immersion for an hour or so to establish if the switch is at fault.

What do you people think??

 

[Goldspoon]

Off subject slightly but that cold water cistern does not look fully supported across the base as it should be

Can cause accidents:

http://news.bbc.co.uk/1/hi/england/somerset/7178871.stm

 

[richardspooner]

I've used a porcelain block to remove the switch for a short test to see if the immersion element heats. After joining the wires I've found that it is still reading 15-20 depending on what part of the block I test on.

Any ideas? I'm completely baffled!

 

[seco services]

so you've bypassed the switch altogether ?

 

[richardspooner]

Yep, removed the switch, joined pos-pos, neg-neg

 

[seco services]

you can't suddenly loose voltage in a block connector.

where you testing it a the immersion end of the cable, the brown ?

 

[richardspooner]

I know!! lol

I'm testing at the block connector itself, saying that, I didn't check the wire itself while it was bare. I'm going to go and do that now.

 

[richardspooner]

Ok, so I removed the supply side (I don't know the right term) of the block connector and tested the wires bare, and i'm getting a reading of 164.5.

Is there a possibility that my multimeter just isn't reading the voltage correctly when I'm testing the block because I can't get a good contact?

 

[seco services]

something wrong as 164v won't get anywhere.

try it on something else, plug socket, lamp etc.