hotpoint wmf540 - error f-05?

Hi All, I have a hotpoint wmf540 which cycles well and stops with error f-05, the clothes are wet. I have been reading around and I have removed coins from bump, and opened and checked the the filter is clear. I run it again but the error continues. I have also check under the sink drainage pipes and they are all clear. the drainage tube is passing water and I could blow and air flows through, I am thinking if my pump is faulty. please help and suggets