Are there any problems with the Worcester Bosch greenmaster junior?

Not open for further replies. Hi All, Ive been doing a lot of reading about the Greenmaster Junior and it appears that pressure problems are not a rare occurance!

What was the problem with the Worcester 24i junior?

Firstly, someone (previous owner) had, for some reason, switched the bosch system pump onto its lowest setting. Unfortunately, this wasnt enough for the boiler CH loop. It required setting III. The boiler lit, as normal, and as this was the first time it was lit, I kept an eye on it for a minute or two.

Can a Worcester Greenstar boiler need to be replaced?

As you’ll see, an airlock in a pump on a Worcester Greenstar boiler isn’t exactly difficult to remove. However, if the problem with your Worcester relates to a heat exchanger, it might need replacing.

What to do if your Worcester Bosch boiler is out of warranty?

You can diagnose a faulty diverter valve here. If your boiler is out of warranty and needs a diverter valve replacing, it might be wise to invest that cash in a new unit with a long warranty. The cheapest place to find a Worcester boiler online currently is HEATABLE.

Where does the Worcester Greenstar junior 28I boiler leak?

I have a Worcester Bosch greenstar Junior 28i combi boiler fitted mid 2011. It’s leaking from the ‘unused port’ situated just on top of/behind the flow turbine on the return manifold (on the right side of the pump when looking at at it) .

Not open for further replies. Hi All, Ive been doing a lot of reading about the Greenmaster Junior and it appears that pressure problems are not a rare occurance!

What causes a Worcester Greenstar boiler to be noisy?

The two most common causes of the problem are: An airlock in the central heating pump. A heat exchanger that is kettling. Jump over to our article that covers noisy boilers here. As you’ll see, an airlock in a pump on a Worcester Greenstar boiler isn’t exactly difficult to remove.