how can i stop my fisher and paykel e442b fridge from beeping ?

my fridge starts beeping about 3 times every 10seconds or so and then gets more and more to the point that its beeping constantly and i can't get it to stop. I've emptied my freezer because i noticed my ice cubes weren't frozen anymore but that did nothing so i emptied the fridge a little thinkin it had to much in it. Still no luck. So i've resorted to turning it off at the switch for a while and the on again and then in a couple of hours time the beeping starts all over again! Any ideas would be muchly appreciated!