I have a thetford toilet in my caravan with electrical flush since the big freeze it makes a flush noise but despite being full will not flush

Thetford makes toilets with hand pumps , and electrical pumps . Permanent , and portable toilets . Without more info , it is hard to guess . With my portable electric model , batteries had to be replaced .
If you need parts , go to ;
http://www.thetford.com/products/toilets/cassette-toilets/
Click Parts at the top , and go from there .

Go to ;
www.thetford.com/products/toilets/ ,
Then click on " Support " .
It is great when these companies help their customers AFTER the sale !!!
AND , this company still makes most of their products that are for sale in the USA , IN the USA !!!
Good luck !
Alec .

Here is a link I found to help you. I have fixed a few and replaced some for various camper and motorcoaches but not having it in from of me make it difficult to diagnose. This link gives a list for many issues.
http://howtomendit.com/search.php?keywords=thetford

this link is for the manuals available from Therefore.
http://www.thetford.com/customer-support/product-manuals/

Here is a link for the Manual for your model http://www.thetford.com/HOME/PARTS/PortableToilets/PortaPotti365PDFs/tabid/669/Default.aspx

Probably the rotor has come to a stand still (carbonade). I suggest you will clean the rotor with an house-hold acid liquid (like the one for cleaning coffeemachines).

Flying Dutchman.

Don't send money. Just go to thetford.com and download info.
Some tips - if seal is old and breaking up make sure you recover all the bits which have fallen into the flush water tank. If new o-ring seal not available use outdoor silicone sealant and allow to set for 48 hours before adding anything other than a small amount of water to test flush action. Electric circuit includes a fuse and microswitch which are both contained within the flush water tank but you are unlikely to have problems with these items.

Thetford Model Cass C2 L TC WHI - Toilet won't flush. There is power to the switch and flasher. Any ideas?

can anyone tell me where is the fuse fits under a thet ford cassette toilet model ppc2r and wot size

you may have this already but try

http://www.thetford-europe.com/web/show/id=51498/langid=42

Good news , you can go to ;
www.thetford.com/products/toilets/
Click on " Support " , and you should get the help you need .
Good luck !
Alec .