This model is about 17 years old. Should perhaps think about putting the money in to getting something newer. If you really want to fix it you need to tell what the fault code is. When it starts beeping look at the 8 lights along the top row. Count from left and note which lights are on & which are off. i.e. 1st 2 off, 3rd on, 4&5 off etc. Post back here and I will look up the error code.
Lincoln Appliance NZ, November 2012