Worscester Boiler sounds like a kettle

[supersport]

We have an 8 month old Worcester 24CDi System mounted in a heated garage. Just lately at various points during the day it sounds like at the flue on the roof and inside it sounds like a pot slowly filling with water.

All research points to a frozen condensate pipe, but this is not the case here. The pipe goes straight into the outlet of the sink in the garage, which is heated and nice and toasty.

The boiler is working fine and showing now errors.

I phoned the Worcester help line, but they said frozen pipes or call out an engineer. I don't want to incur engineer costs if nothing is wrong.

Any clues?

[Ferg]

Boiler noise is very often a circulation problem. Pump? Sludge?

[Dogwatch]

supersport said:

We have an 8 month old Worcester 24CDi System mounted in a heated garage. Just lately at various points during the day it sounds like at the flue on the roof and inside it sounds like a pot slowly filling with water.

All research points to a frozen condensate pipe,

Might not be frozen but is it blocked or partly blocked somehow? This is the first serious work the boiler has had to do in its life so there could be an installation fault which is now coming to light.

[jjones]

is the water boiling in the pipes? try turning the stat on the boiler down a bit to see if it helps.

[supersport]

Thanks for your responses.

I am going to get the installer out on Monday to have a look at thing. I suspect that the condesate isn't emptying at the rate that it should. Every couple of hours the noises all stop and then it slowly builds up again.

I don't think the water is boiling in the pipes, it is only turned up half way.

[Munter]

There may be a trap on the bottom of the boiler/top of the condensate pipe. Didn't take long for mine to block when the boiler was new. Different make though.

[King Herald]

supersport said:

Thanks for your responses.

I am going to get the installer out on Monday to have a look at thing. I suspect that the condesate isn't emptying at the rate that it should. Every couple of hours the noises all stop and then it slowly builds up again.

I don't think the water is boiling in the pipes, it is only turned up half way.

Is it a complete new install, or added to an old existing heating system?

Reason I ask is our conventional fired central heating has been making those same roaring, jet engine, water filling, rising pitch, noises for a several months, and I just added some inhibitor cleaner lubricant quietener stuff, and the noise has gone away. I know our system is pretty gunked up, but yours should have been power flushed if it was an upgrade.

[supersport]

Had a look at the Syphon yesterday and it had loads of gunk in the bottom. I spoke to plumber this morning and he reckons the condensate pipes have gunked up, which he also seen before in a brand new boiler.

Upshot is that it just needs cleaning out.

Apart from a couple of existing pipes around the upstairs radiators and two old radiators that we reused in the garage it is a completely new system end to end.