Obviously tired of living or not concerned about the danger created eh! Upping the fuse amperage on any appliance, low or high voltage, can be dangerous and could even lead to prosectution if you cause someone to die through stupidity. And it's no excuse 'It's the only one I had'.
Now the lecture is over follow steps below.
Sounds like pump is jammed or knackered obviously current reaching the pump. If you can see the impeller at bottom of the pump then turn it gently with small screwdriver or similar until free. Replace in tank or a container of water and try it. Never try a pump when its dry.
Thetford pdf accesss :
UK www.thetford-europe.com
Australia www.thetford.com.au (Even get request from Australian campers)
Australia site has stockist list.
HOME PAGE SELECT ENGLISH {if in Australia forget this selection)
NEXT PAGE SELECT CUSTOMER SERVICE (top line)
NEXT PAGE SELECT USER INFORMATION (left of pic) also 'Ask thetford' is on this page.
NEXT PAGE SELECT REPAIR INSTRUCTIONS (left of pic)
NEXT PAGE SELECT BUILT IN TOILETS [top right of pic]
NEXT PAGE SELECT This is where you select your toilet range. Search alll if unsure of type/range
NEXT PAGE PDF Files You should be in the pdf folder list on your Thetford toilet. Start downloading.
bob, January 2012