My hotpoint dishwasher wouldn't either...so unscrewed all the screws on the inside of the door and found that the spring had snapped/come loose on the door catch.So searched on ebay for new catch approx £10. Better than the £115 quoted by hotpoint to repair.Fingers crossed will arrive tomorrow and will fit new one Fairly easy to disassemble door ,a bit fiddly as the whole of white front panel comes loose and you may put strain on the wiring. The door catch is basically two screws then two wires to take off.
Paul, April 2010