have you tried changing the 3 amp pink blade fuse in the casette housing?if it doesnt seem to have blown change it anyway cos the contacts can become poor cos of the damp environment it lives in.if possible check for 12v power at the fuse holder with a multi meter.if these initial checks seem to be ok then there is a possibility that the small propellar on the end of the thetford pump could have seized usually when it has not been used for a while.there is a way to repair this if you require further info on this then just let me know.cheers.regards mike.
mike, June 2009
