Worcester 28i Junior condensation in combustion chamber

[mutley racers]

Hi Guys, long time since I have been on here. Life's extremely busy at mo with work and family etc. Wondering if anyone can help. Got called to the above boiler which had stopped working. When I opened it up I could see moisture over the innards and a pool of water on the bottom of the combustion chamber. Had a look around and there were drips coming from screws that hold the flue connection to the case. Now I am thinking that a seal has gone in the flue and has leaked or second thoughts was heat ex leaking and then as warming up causing moisture inside. The tenant has not had to top up though. I couldn't do a flue integrity test as the boiker wasn't working. Has anyone experienced this before? Cheers fellers

 

[thereisawizza]

They do let in water, the later versions had a gas valve that was spaced off the floor of the combustion box by an inch to stop the coils sitting in water and the fan now has "guttering" over it......

Are getting fault lights?

 

[Gas74]

Been heavy rain recently? Gutters above flue blocked? Sounds a bit like rain getting in.

 

[mutley racers]

So chaps, you were correct. The seal on the gutter tee had gone and was dripping inside the flue which killed the fan. New fan in and all gravy. Any ideas why you get a new combustion seal and electrode plate when you buy a fan as you don't need to remove these to replace fan and fan and analyser readings all gravy?

Cheers fellers. Have one in the arms on me

 

[ShaunCorbs]

Best to replace these at the same time but no need to worrie if you haven't

 

[mutley racers]

Best to replace these at the same time but no need to worrie if you haven't

I see. I was naughty and didne bother

 

[mutley racers]

Best to replace these at the same time but no need to worrie if you haven't

I see. I was naughty and didne bother

 

[ShaunCorbs]

I see. I was naughty and didne bother

😀 they want a change every 3-5 years (gasket and probes)