Its getting cold again and need to start putting the heating on. Just been in the house for 2 months and the heating is a bit of a issue.

They are storages tanks in the cupboard for the hot water the time clock has set times for the hot water but I did override for the heating and the light did lit but no heating. Normally the boiler fires up when hot water is being warmed but no luck on the heating. They are two light look switches in the airing cupboard which one goes to the big tank and the other Im not really sure.

Please help guys