I have had my iCompost maker since October22 and my replacement filter since Dec22. All has been going very well but now whdn I switch in the icompost maker it has a constant fast beep and no lights - if I hold down the power and clean button for about a minute the drying cycle starts but all the lights flash on and off and beeping continues. When switching off power beeping continues for about 15 sec longer. It started doing this after I replaced the charcoal in the filter.