Bosch Worcester 240 - no spark

[Rod Hewitt]

With the evening getting colder and colder, a close relative who lives nearby rang to ask me if I knew anything about boilers.

He is renting a house and the boiler is simply not firing up. There are various sounds - and there is gas at the cooker! - but no dice.

I have despatched him with a fan heater, which is about all I could do as I know little or nothing about this boiler (or boilers in general, really!).

Obviously he is getting on to the landlord but is there anything that could be worth looking at in the interim?

I did look at the BW site - but couldn't quickly find a 240 model - any hints there would be appreciated. Not sure of its age or anything though it seems to be a combi.

Rod

[Mark Williams]

I have this model---mine's more than 7 years old (no idea by how much).

Do the POWER and DEMAND neons light up? Does the heating water gauge show reasonable pressure? Does the fan motor (near the top) run? Does the pump (near bottom left) run?

The easiest thing to check internally is that the overheat thermostat hasn't triggered (try pressing the reset button about two inches behind the centre bottom of the front cover---lift up cover to remove).

I have the handbooks, but most of the startup diagnostic charts involve measuring voltages.

[Rod Hewitt]

Mark Williams wrote in news: [e-mail]:

Mark,

Thanks for that. I have just been talking to him - the plumber came round a little while ago - dead fan. Of course, there were 20 different fans on the van but not for this model! So he will have to shiver until Monday. At the moment it is a little warmer (around 2.5 last I looked) so not so bad.

I don't think that measuring voltages, etc. is the way to go with a rented property - I would if it were his own house and boiler (or my own).

Rod