Recent content by davejones72

http://www.vokera.co.uk/discontinued.asp Service guide page 52.

Sorry, by calorifier I am meaning the plate heat exchanger. Thanks for all the suggestions.

Thats along the lines of what I was thinking, it just didn't seem to reach a point where the pressures balanced.

To be honest I never tried it with it removed, I really should have. I just thought as the mains pressure was decent, the pressure would rise unless there is a fault on the non-return valve. I also tried topping the system pressure up, isolating the mains to the plate heat exch then running the...

Nice one thanks, I'll get that email sent.

Charge in the expansion was 0.7bar but the pressure on the system drops with the hot tap running and the boiler isolated ( at a slightly slower rate.) The PRV was changed a month ago and the tundish was dry.

Never realised you could do that, I'll get my deatails sent, I realise given the issues with this boiler its probably not sensible to give advice on potential problems incase some tries to DIY it. Cheers.

Sorry, should have said...I am corgi registered and know what to look out for on the powermax, unfortunately I seem to have come across a lot of them recently, but never seen this before.

Any help or ideas would be appriciated... I realise this is a DIY forum but I'm trying to work out whats going on with a powermax 155x (thermal store) on a sealed system. When the hot taps or shower is run the sealed system pressure drops down to 0bar within 5 mins. The mains pressure is good...