How much is a circuit board for a Valliant combi heater?

Hi there!

I have a Valliant combi heater VCW 20/1 T3 WH

Unfortunately it has recently broken down. The main fuse had gone so I replaced it and it worked fine for 24 hours! The next morning the same thing happened, no central heating/hot water, however the fuse was fine! I noticed the pressure level was right down so I brought it back up to just under 1bar. However this did not help.

Next I called out an engineer, who has looked at it and suspects the circuit board to be blown. He said I would be best to get a "Valliant Engineer" round to look at it as they would know exactly what was wrong with it and also they would be able to get hold of the parts needed easily.


Can you guys please help out at all, or give me some suggestions?!

Thanks very much!

James.

ps. I am in the Essex area! Do you know any Valliant phone numbers?!