The CH Demand light keeps flashing slow and cutting off the heating?
As above, when you hold down the red button the boiler re-starts, but after a varied time the boiler cuts out again - its sometimes after 5mins or 4hrs, but keeps cutting out - any free/cheap ideas on how to fix this?
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix home heating systems.