need help

[martydos]

ive got a vokera mynute 20e so far the thermister ,thermastat,pump, and pcb board have been changed but still got a problem.
the boiler fires up and stays on for about 17 seconds but if you put it on with the hot water it stays on for a lot longer the water in the tank is getting hot and so are the radiator but once the hot water has reached temp it goes back to coming on for a few seconds so the rads are going cold. can anyone help please

 

[cross thread]

sounds like the prob is your heating circuit is not opening rather than a boiler fault,depends on the system .y plan ,s plan?

 

[Agile]

Who decided to change all those expensive boiler parts? And why ?

Tony