My name's Allen Hart and today I wanted to show you a new boiler so a new boiler
that's not working so a commonly question that we get asked on the groups
in the in the gas chat and also other groups on Facebook is we've installed a
new boiler but it's not working it's got power to it but the ball is not
working so I want to show you now a common problem so I would say is nine
times out of ten maybe even more than that it's gonna be installer error
almost always its installer error so I'm just going to show you that now just to
hopefully get you out of a sticky problem so this is not designed to be a
training video on electrics it's just to give you just a little overview of what
the problem could be so always do your safety checks always do all your
electrical checks as you should with your multimeter
but for this well zoom in now and I'll show you this boiler so I'm gonna switch
the spare on so that gives us power you know with cryptic wires into here so
I've only done this just sucking news multimeter so I can just show you what's
going on but all I've done there is I've connected the live together I've
connected the new table together and then the earth is connected together as
well they're just almost a devil so that's not not designed to trick you or
anything like that and then we'll look on the front of the boiler it's showing
blank so it's showing that there's no power to it so now what we're gonna do
is we're never look with multimeter and then we're gonna prove that we've got
power to it and see what the issue is so I've put one side into the earth and
then this said I put it into the live so we can see there we've got power
to the boiler so that we've got power to here anyway
and then this power this from here then goes to the boiler which will have lock
in the bottle in a minute and then one will look on the neutral we've got less
than 15 so that's fine there so know what we're gonna do is gonna check the
kiss off the boiler and then we'll have a look inside the boiler and we'll see
what the issue is inside there so all we've done now is we've proved that
we've got power up this way here and so this way is Center so now what we're
gonna do is we're going to take the case off the boiler and we're gonna check the
wiring inside and then we can check the continuity from the wires back to this
wiring Center and we can see what the problem is or could be so I always
remember if you're gonna remove the case of a boiler you must be gasps if
registered so we're gonna do is electrical check to make sure this is
safe and turned off and isolated before we remove the cover so I've just to the
power off there and then we can test that so on this boil there's just two
screws a bomb a kiss so you can just do kill them and the case will just lift
off
and then I'll just pull the flap down and then we cannot look where the
electrics are here and then we can test this with the multimeter
so I'll coming in less of a lock it's on this spoiler the box is 600 she's got a
clip it lifts out like that so this this problem could be on any boiler really so
what we're going here we've got his live wire just there which is the brown one
and then the blue one is as neutral and then the green is the air for you so
just for the purposes of this video let's send the power back on to the
boiler and then we're gonna do a few checks I'll just show you we have the
power source boiler so if we gone to the earth there and we got to live we can
see there that we've got 242 volts AC and then when we got to the neutral
we've also got 257 volts AC so we know straight away that we've got an issue
there we shouldn't have that much faults on there so now what we're going to do
is I'm going to turn the power back off I'm gonna test these two wires here well
I'm going to test all free with the bleep on here and then we can see if
we've got comfortable sit down the wires
so I'm gonna put on to live here I'm gonna put it back up to the live so we
know we've got continuity there and now I'm gonna deal the earth and again we
can see that we've got continuity and then now I'm gonna do the neutral so
there we can see that we've got a problem
with the neutral and this is that this is a common problem this a very very
common problem so people they get to five volts on to the brown on to the
live and the thing that the boiler should work but it needs to be weighed
correctly so having a multimeter yes you absolutely need a multimeter for this
job so just to confirm there we've got a problem with this neutral so what I'm
going to do is I will set the way out and I'm going to show you so we've
turned the power off with the power is off and we checked it's off so when we
pull this wire out of here we can see
we can just say that won't throw it back enough so we just had a faulty neutral
so even though we have power to the boiler here we couldn't get the return
if you like so if you imagine the the the lie Buster floor and the blue is the
return so the return was blocked if you like to make it easy so what we need to
do now is we need to just cut our back connects in and then this will probably
work so although we'll do that now and then we can test it and they'll can see
so I'm just gonna put the power back on now so if you know that straight away so
we know that boiler well let's come on anywhere but just to show you now when
you put you you live to neutral you've got to factor
and life to earth you've got too far to so now when you do your neutral to your
earth we've got less than 15 so now we know that that's working okay so that
was just a very basic fault on a boiler but it's fairly common and I see it
quite a lot so justify to share that with you so I don't think what's a
multimeter it's one of the most important pieces of kit you can have in
your toolbox so what's a is if you can get yourself on some multimeter training
and learn more about the multimeter because that's what helped you fix
boilers and get things working so I hope this video was awesome news and thanks
for watching