Boost button not working, electric immersion tank

[richardspooner]

Did that last night and got a reading of over 200.....posted it back somewhere.

 

[richardspooner]

Honestly, I don't want you to think that I am making this up as I go along.....I have the wires exposed and I am testing accross them with needle testers and getting a steady reading for more than 5 seconds.

 

[seco services]

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

this you done last night.

but even 200v isn't right.

 

[richardspooner]

I'll recheck on the kettle plug with the back off.....gimme two mins

 

[richardspooner]

Mutlimeter set to 750 V~

Kettle plug with the back off is reading 216

 

[seco services]

mine are 236v

 

[richardspooner]

I'm quite sure that standard tollerance is 220-240v......so I'm not a million miles out. Also this isn't the best meter in the world and I'm testing on a plug terminal rather than in the socket.

We can assume that the ring main is the right voltage and the meter is reading within 10-20v.

I just can't figure out why the switch supply is so low though........160(odd) is a long way off 240.

 

[seco services]

do you not know anyone that can lend a meter ? to double check.

 

[richardspooner]

No, best I could one from B&Q but they are not the best quality either.

 

[seco services]

not much i can suggest at the mo the readings seem all over the place.

 

[richardspooner]

Well, I've connected it all back up now anyway, gonna let it run like that for an hour or so.....or until the house catches fire......whichever comes first.

I've posted this up in the Electrics forum too. http://www.diynot.com/forums/viewtopic.php?t=157515