You need to take the front of the machine off. There are three small screws facing upwards, right at the bottom in the front. Remove. Then cabinet front will then slide down, but first remove plastic ring holding door seal to the front (just prise apart where it is joined, usually at the bottom of the door.) You might find it easier if you remove the door interlock switch as well.(two small nuts and bolts.) Everything will then become obvious.
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