If it’s like mine then it’s a low speed fan on “bake” mode which has little impact on cakes. If you have a convection option, don’t use it when baking.
The only options are fan forced, grill with fan and grill without fan. I might try the grill option and put some foil on a rack above the cake to stop the top from burning. I’ve had to do this for many years as my last two ovens only had functioning grills.
If it’s like mine then it’s a low speed fan on “bake” mode which has little impact on cakes. If you have a convection option, don’t use it when baking.
The only options are fan forced, grill with fan and grill without fan. I might try the grill option and put some foil on a rack above the cake to stop the top from burning. I’ve had to do this for many years as my last two ovens only had functioning grills.