immersion query

[crazychic]

Just did a continuity test between Live and through the stat on an immersion and the multimeter bleeped (so was continuity). Then did the same from L to N and bleeped once again (so continuity). Also do double check, did it from T terminal to N and it bleeped again.

So why does the water not heat?

 

[twgas]

is this a real problem or is it part of your course?

 

[WDIK]

ok so you have proven continuity.

did you do the insulation test to earth? @ 500v <1M ohm should be ok.

then you need to test live and neutral.

then if you have that a load check would show current, approxiamately 12.4A would be about right for a 3Kw element.

 

[crazychic]

Hi again. No it's not part of my course. It's a real problem!

I have isloated the supply, and tested for continuity and the probes bleeped as supposed to.

Then I have now tested between L and N on resistance setting, Ohms 200k. But the meter doesn't read anything, it flashed a few numbers, never get a proper reading. Am I doing it right, touching the L and N terminals?

 

[seco services]

if your trying to test the element you need to test N T.

 

[Agile]

I think that you need to measure some voltages!

But I dont believe that you are competent to work on electrical circuits and that it would be very dangerous.

Call a competent heating engineer or even an electrician!

Tony

 

[crazychic]

Guys (or gals)!! I know how to use a multi meter. I am not silly and just need to know exactly how to make sure the element has broken.

Surely it can't be hard to work out?

 

[seco services]

test N T then

 

[crazychic]

tested N to T on resistance, the 200K setting. Just flashed a few random numbers then went back to 1. (which is the normal setting).

 

[Agile]

tested N to T on resistance, the 200K setting. Just flashed a few random numbers then went back to 1. (which is the normal setting).

It does not sound to me as if you are competent to make these measurements if you cannot interpret the reading you have obtained.

An immersion element is about the most basic circuit you can find, a resistor in series with a switch!

As I said before, voltage measurements will probably be more relevant. It will not work without an applied voltage!

Tony

 

[crazychic]

I know how to use it safely, i just am not sure if my meter is dodgy or what! I tested safely and easily for continuity.

Some posts on here vary, some say resistance should be about 18 ohms for a 3kw heater.

My meter just styas on o when testing resistance from N to T terminals. So why is that?

A DIY book I bought over a year ago, although pretty basic, says that if there is NO continuity between L and N then the element is faulty. Well my element HAS continuity but is not heating!

 

[seco services]

has your meter got 200 setting ?

 

[crazychic]

meter has got 200k setting for ohms.

 

[seco services]

no just 200

 

[crazychic]

Yes it has 200. (This is up by the V section).