Could anyone give me some pointers as to what might be wrong with our Kenwood dishwasher, please? It appears to work normally - fills, drains and heats, but leaves a fair bit of residue on the crockery. I've tried pulling the outlet pipe off and letting it run into a bucket. There's a good flow when the pump runs to empty it. I've cleaned the filters too. If I set it to run and open the door after 10 minutes or so, the water inside is hot, but not scalding, and there sounds like there is plenty of it splashing around inside while it is running.