Worcester boiler - strange leak

[Pete101]

Hi guys,

Got a weird situation with my Worcester combi boiler...

A few weeks ago it started dripping from near the left-hand side. Couldn't see any sign of the leak, so suspected that it was deep inside. Got about half a cup of water per day.

Anway, as the pressure was very low I topped it up by inserting a small white key into a slot underneath just off centre of the boiler. There is also a small square nut which I had to turn in order to hear the filling sound.

Anyway, about a week later I decided to top it up again as it was still dripping, but this time I left the key in situ. For whatever reason, the dripping stopped - nothing. Not even a drop.

I removed the key again as a test, and it started dripping again.

Can't see how inserting / removing the key would cause water to drip from several inches away. Although the key fits snuggly in place I can continue turning it both left or right. There doesn't seem to be "stop", even though I can see both locked and unlocked padlock symbols.

Is there a clever guru who has the answer?

Best regards,

Pete

 

[Gasguru]

Model?

 

[Dan Robinson]

The key is a bayonet that links two valves.

If it didn't drip with the key inserted then one of the valves is passing

 

[ianmcd]

just leave the key in but make sure you close the square valve

 

[Pete101]

Model is a 30Si

Many thanks for the suggestions so far - it is much appreciated.

Pete

 

[ServiceNumpty]

Filling Loop is on the RHS, so where is the leak coming from.

 

[Pete101]

Filling Loop is on the RHS, so where is the leak coming from.

Left hand side...... A few inches in.

 

[mattylad]

can you identify where?
dry everything you can get to, on all pipes etc.
then when it starts dripping again, fell for the wetness on pipes etc.
stick your head under there, or use a mobile phone to take pics.

 

[mattylad]

Does it look like its coming from the black plastic bit above the left hand piping?
Have a look at the first few seconds of this video:

That's posted to help you figure out where the leak comes from, NOT to help you fix it yourself.

 

[Pete101]

There appears to be a little chambre on the left-hand side (shaped like a test tube) with a small cap at the bottom. The water appears to drip from there.

 

[Dan Robinson]

That needs a registered gas man to fix. It is part of the flue.

 

[Neil9834]

kind of difficult to tell by the photo but it looks like its leaking from the condensate trap to be honest

 

[mattylad]

That needs a registered gas man to fix. It is part of the flue.

Here is your answer then, get someone in to fix it.