hi..
i m imran i have jura x9 matchine showing on display error 04 just i want fix it ..
IMRAN RIAZ, August 2015
In my many cases with an Error 4 it has been the heat sensor on the top boiler. It is two blue wires with a metal O ring at the end, screwed to the top of the boiler. Once replaced with its $16 equivelant back to normal! Best of luck
Matt, May 2010
HI LEE GOT THE SAME PROB WITH MINE ERROR 4 DID YOU GET IT FIXED? CHEERS BILL