Thank you! I have an engineer coming on Monday from Eon (heating care contract). Not sure if they are experienced as have read some just know the basics. I will ask them to do what you have suggested. Again thanks.
When the temperature drops to under about 3 degrees the pilot light on my Baxi boiler goes out. The heating goes off around 9am and is due on again around 4.30pm so when it gets very cold I keep coming home to a cold house.
The pilot light indicator is not on but the boiler and fan lights...