Yesterday the hot water packed in completely, with the burner failing to ignite when I turned the taps on. Later the central heating failed too, with an "06" fault code. Today both CH and HW are working again.
The boiler was repaired under warranty just over a year ago, but now Vokera says they will charge Â£189+VAT to take a look at it! Any Vokera-trained engineers in the Edinburgh area?