Noisy Isar

[pipefitter]

Hi all ,got a noisy 5 year old Isar 30 he combi to look at this weekend ,every couple if minutes it sounds like someone is drilling then it goes quite for a minute then starts up again...anyone know what this is likely to be or known problems with these.....only does this after it's warmed up apparently.
I know it's a bit of a vague description but any heads up is appreciated

 

[Barry98]

Hi all ,got a noisy 5 year old Isar 30 he combi to look at this weekend ,every couple if minutes it sounds like someone is drilling then it goes quite for a minute then starts up again...anyone know what this is likely to be or known problems with these.....only does this after it's warmed up apparently.
I know it's a bit of a vague description but any heads up is appreciated

heres what you need

 

[pipefitter]

Lol Yeh your probably right

 

[Reg Man]

Bod does not like Isar's?

 

[Killy Bing]

Bod does not like Isar's?

a better question would be, who likes isars ?????!!!!

 

[GrahamM]

If you pass on the Axe job.....check earth pins & insulation panels then clean sump and condi fully.

 

[julesverne]

a better question would be, who likes isars ?????!!!!

i like replacing them :39:

 

[diamondgas]

I actually came across a newish Isar the other week that looked like it had some kind of serious upgrade on it!!! Next to no plastic, bog standard diverter etc.... Couldn't believe I was looking at the same appliance TBH ... PCB the same but otherwise.............amazed at what I was looking at!!!...........

Regards noise .. could be a multitude of sins... eliminate, as mentioned, the condensate and the rubber flue seal, boiler to flue...!

 

[ambrosia]

when did they go out of production, had one the other day and as soon as i saw it started dropping hints that she should think about changing it. however customer was adamant boiler had been installed in sept 2011

 

[arran197]

Prv discharging.

 

[zeebeedee]

Blocked fan Venturi?

 

[smhstu]

If the nut on the fan where the gas enters it is loose or the rubber seal is damaged this could be drawing in air.
seen that a few times

 

[Reg Man]

Absolute mare to work on. Who sacked the Classic designer.