these are just a liquidiser really.. like any macerator, they will only pump sewage and toilet paper. not kitchen roll, wipes, tampax or any thing that you cant mash up with your fingers. uurgh! unplug it. under lid, take of the black round cover. you will see the impellor/cutter. make sure the blade turns easily. if it doesnt, then the pump is blocked. call a professional. i charge £90 to clear them but i dont need any more work, thamks.
patrick beadle, January 2013