Boiler stays on since Fuse Blow out - Drayton Lifestyle 522

[cjcola]

Hi there,

A couple of days ago I went to test the Central Heating by simply hitting the button on the Drayton Lifestyle 522 controller. When I hit the button, all power went to the boiler and controller as the Fuse had blown.
I replaced the fuse, but now, even when I have the controller set to Off the boiler remains on, and now the CH won't switch off.
My only option is to switch off the mains at night, and wake up at the crack of dawn to ensure I have hot water for the shower as it is too hot to keep the radiators on.
I have replaced the thermostat and that hasn't helped....can anyone please make any suggestions as I really don't want the heating on when I just want hot water.
Many thanks in advance.
Chris

 

[flameport]

Likely that a motorised valve has failed.
Less likely is a wiring fault or damage.

 

[Agile]

Have you fitted a nice new efficient pump recently?

Tony