Thetford cassette not flushing (1 Viewer)

[Boombastik]

hi

I've recently purchased a Mercedes sport home. Fitted with a thetford cassette C2 toilet
I only just discovered after leaving at the weekend that it won't flush

Fuse at the rear was ok the 3amp fuse under the toilet was blown, so replaced this and still no flush function

Checked with a volt meter and getting 12v at the plug beside the fuse, but can't seem to get 12v across the fuse socket

Is this pointing to a faulty pump or the PCB

Thanks in advance

 

[Zigisla]

I had the same on my folding camper and it was the pump impeller seised with crud after a long storage.