It is not that hard of a job, You have picked a topic that is rare for this machine though. Fill issues are not common. Anyway you need to unplug it and turn off the water supply and disconnect the hoses, Check for hinges on the back of the unit that connect the lid to the back. The top section usually lifts from the front edge and you may need some plastic wedge to avoid paint damage while separating. When you lift it, you will see the valve assembly and you just remove the hoses that are clamped to them and then remove the wire connections and then the mounting screws. You put the new in and install it in reverse. Take pics with a digital or camera phone if you think it is going to be confusing. That way you can get itt back the way it was.
Answers & Comments
It is not that hard of a job, You have picked a topic that is rare for this machine though. Fill issues are not common. Anyway you need to unplug it and turn off the water supply and disconnect the hoses, Check for hinges on the back of the unit that connect the lid to the back. The top section usually lifts from the front edge and you may need some plastic wedge to avoid paint damage while separating. When you lift it, you will see the valve assembly and you just remove the hoses that are clamped to them and then remove the wire connections and then the mounting screws. You put the new in and install it in reverse. Take pics with a digital or camera phone if you think it is going to be confusing. That way you can get itt back the way it was.