We have a Zanussi zwg7120k washing machine. It hasn’t been completing washing cycles and we have seen the error code E20 which should indicate a draining problem. We want to start by checking the filter is free of fluff, coins etc. However there is no obvious way to access the filter, no front panel or kick board. I found the manual online and it doesn’t mention this filter at all. So, does this model have a filter for the drain pump, and if so how can we access it? Many thanks for your help!