Hi my 5 year old Baxi Bermuda does a lot of ticking before it eventually fires- about 2 minutes. Sometimes it doesn't fire and goes into lock out. It was never a good starter even when new but it seems to have got worse. Once the first start up has been successful, all other start ups (after heating/hot water has been satisfied and boiler is then needed to fire to satisfy heating/hot water) are fine it's just when there's a break of half dozen hours or so. Any ideas? Thanks to any replies.
Jon
Jon