Why does my Worcester boiler keep flashing blue?

When a Worcester Bosch has a fast flashing blue light this means the boiler has gone into service mode. This could be for two potential reasons. Either the boiler has been serviced recently and has accidentally been left in its service mode or, alternatively, you may have accidentally knocked the switch yourself.

How old is my gas boiler?

You can find out how old your boiler is by visiting the official industry database. Fill in details of your boiler and the dates when manufacture of that model began and ended will be displayed. You can search for all brands and models of boilers in this database. Or you can look at your boiler’s serial number.

How old is a Worcester Bosch Greenstar boiler?

Are you concerned about your faulty Worcester Bosch Greenstar boiler? If you own a Worcester Bosch Greenstar, the chances are your boiler is probably under 10 years old, as most of these models were first introduced around 2004/2005.

How old is my Worcester 24i combi boiler?

My boiler is almost 9 years old and now makes the most terrible, screaming vibrating noise when I switch the heat on. It is not constant, it screams for approx ten seconds then ebbs away then starts again after a minute or so and it’s driving me mad!

What causes a Worcester Bosch boiler to fire up?

The Cause: If you hear a strange banging noise when your boiler fires up, this is usually a problem with the gas valve communicating with the fan speed. The Fix: Call a Worcester Bosch service engineer or an accredited engineer, who will be able to take a look at it for you. Worcester Bosch Greenstar boilers are very reliable, well-built boilers.

Why does my Greenstar boiler make a ticking noise?

It may be the condensate trap is blocked and the boiler needs to be serviced. The Cause: If your boiler refuses to ignite, and you can hear it going through the sequence before making a ticking noise (trying to ignite), it could be that the gas has been turned off or a fault in the ignition leads.