Asda Model GB208T1H now made by ONN?

Hello, please help. I purchased the above microwave earlier this year and I have set it but unable to cancel the instructions. There are red icons showing in the display panel but there is nothing in the owners manual telling you what these icons are.....is there anyone who can help. This was made by Linmark (I think) but Asda are now selling them under the ONN maker. The model is the same as showing on the top of this page - it is a microwave and oven