Worcester grecnstar burner seal (servicing)

[Jennie]

Hi all,

Just curious - how often do you all replace the burner seal on a Worcester Greenstar during servicing?

Assuming all is well with combustion levels, pressure test, etc. (As without X-ray vision, one obviously can't see the state of it until you take it apart).

Thanks everyone,

Jennie

 

[ShaunCorbs]

You can normally tell as ppm / co2 comes out where the electrodes are

They get changed every 4 years for me

 

[EvilDrPorkChop]

Worcester recommend they are done every 5 years. There was a technical bulletin about them, see attached.

I generally find it comes down to how much the boiler is used.

 

[IND_Nick]

I would second what Shaun said, every 4 years. If you leave it too long the whole service can be a nightmare with stuck baffles etc. It doesn't take long if the boiler isn't in an awful position to remove/clean/replace. I also replace the DHW restrictor at the same time as these are prone to failure. We'll maintained these boilers last forever, ish.

 

[Deleted member 120897]

Worcester recommend they are done every 5 years. There was a technical bulletin about them, see attached.

Are these TB’s on Worcester’s website or Gas Safe?

 

[Chuck]

Are these TB’s on Worcester’s website or Gas Safe?

Product Technical Bulletins | Worcester Bosch

Our bulletins provides you with all the latest updates on our boilers, cylinders, solar power water heating and pumps

www.worcester-bosch.co.uk

 

[Jennie]

Thanks everyone for the advice, and letting me know about the bulletin. I'll now be changing the gasket more regularly.

 

[JusKel]

Change them regularly. I came across this one that had failed to fire, but customer kept pressing the reset until it eventually fired. Luckily I got there before he burned the place down. Scorch marks on outside of casing and alot of heat damage to plastic parts.

 

[moonlight]

Just done one the same just before Christmas. New wiring loom, electrodes, seal and electrodes leads. I think mine got off quite lucky. No scorching.

 

[Gary.thornton]

Always put your FGA around the electrodes to see if you get a CO Reading. Will often find the rectification electrode has gone down to a little nub too.

 

[Drew1894]

Hi probably posting in the wrong place here I've just had my bolier serviced and the engineer replaced the burner seal on a Worcester green junior boiler .he had trouble getting the it back together after replacing the seal he was banging at quite hard And now bolier makes a tapping noise on starting up shut down and every time circulation pump kicks in had engineer back who said it's my heat exchanger creaking and nothing to worry about but it was not doing it before the service so it's a bit worrying .