Testing for continuity on boilers

[gemma_p]

Hi can anyone explain to me in simple terms about testing this on multimeter with out blowing myself up
Is red prob to live or Is it black prob
I'm learning and can't get my head around this yet
Does anyone have any tips and what to look for on multimeter if components are broken ???

 

[Simon F]

:welcome: Gemma
red - positive
black - neutral
depends what your testing for, continuity, resistance, voltage etc
also depends on how good your meter is

 

[billybob150811]

hi genna i,m sure a lot of people on here would like to help but your not coming across very well ,neither the red nor the black is live their all dead you have to make sure you have safetly isolated then use the multimeter to check if you have a continuous circuit the audable buzzer is a big help but do you know how to safetly isolate sorry to be a pain but this stuff is only work and no one wants you to hurt yourself

 

[diamondgas]

:welcome: gemma

1st post means "who are you?" .... Gas trainee, GSR engineer or Joe public? continuity means in my head "is it okay!"

 

[Billy Bob Bob]

put your leads into the meter red to com black to vma,set your meter to loop,upside down u or a buzzer symbol ,touch the leads together it will either *buzz* or read 000 this is continuity

 

[gemma_p]

Hello everyone I'm an breakdown apprentice and really want to understand multimeter more..
I know boiler has to be isolated
Is the only live test done polarity ?
I work wit someone who does not use one and I think I'm missing out
On screen of multimeter what ohms reading range would u say a component is broken
Thanks everyone for your help so far

 

[quality]

It depends what component your testing. Black lead plugs into the com terminal and red into the other one of the two otherwise you will get a reverse polarity reading when testing DC voltage

 

[mountainman]

If you google 'using a multimeter' you'll find many useful pages and videos.
MM

 

[Coleve]

Hi After installation of a boiler you must carry out three safety electrical tests with your meter. 'Continuity':in which you are checking that all metal parts and associated parts ie MOT valves, pump, casing etc. of your boiler are earthed properly. Secondly 'Short Circuit, where you are testing for any short circuit between phase neutral and earth and finally 'Polarity' where the test is live and you are checking that you have not reversed the phase and neutral which requires you to change the settings on your meter from continuity to 240volts ac These tests are not for the uninformed and under the gas installation and use regs should only be carried out by either an ACS certified plumber or qualified electrician