I have started the program on my bread maker but nothing happens.

Your bread maker may be pre-heating. The pre-heat feature operates at the start of the wholewheat (30 minutes), wholewheat rapid (5 minutes) and gluten free (8 minutes) settings to warm the ingredients before the first kneading stage begins. During this time there is no kneader action. On selected machines there are also preheat times on other recipes. Please see the guidance in the back of your recipe book for further information on individual machines.If you have checked the program and your selected recipe doesn't include a pre-heat phase, there may be a fault with your bread maker and it may require repairing.