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.

 

[ChrisB1982]

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.