kitchen floor wet!
Discussion
It's pretty straightforward. Bit fiddly sometimes. The most important thing is to make sure the machine's unplugged first 
The valve is to be found right where the fill hose screws in - the threaded bit that the hose screws on to is part of it. It's generally fixed to the rear panel of the machine with a couple of self tappers. The internal hoses are attached with spring clips and the wires are attached with car-type spade connectors. Make sure you note down which way the internal hoses and wires are connected.
Hot fill valves are generally the same on every machine but unfortunately cold fill valves are not. They usually have two or three valves in the one unit to distribute water to the different compartments in the soap tray. Sometimes it's a single valve but there's a deflector paddle in the soap tray to do the job, operated from the programmer. So there are a number of different types. You have to get one with the right number of valve units and connections. Easiest to take the old one down with you.
In extremis it is often possible to change the washer in the valve; it involves unclipping the solenoid bit and then unscrewing the pole thing it fits over with a peg spanner in the base. This is an "undocumented procedure" and AFAIK washers are not available as individual spares, so you'd need another valve anyway to take the washer out of.
The valve is to be found right where the fill hose screws in - the threaded bit that the hose screws on to is part of it. It's generally fixed to the rear panel of the machine with a couple of self tappers. The internal hoses are attached with spring clips and the wires are attached with car-type spade connectors. Make sure you note down which way the internal hoses and wires are connected.
Hot fill valves are generally the same on every machine but unfortunately cold fill valves are not. They usually have two or three valves in the one unit to distribute water to the different compartments in the soap tray. Sometimes it's a single valve but there's a deflector paddle in the soap tray to do the job, operated from the programmer. So there are a number of different types. You have to get one with the right number of valve units and connections. Easiest to take the old one down with you.
In extremis it is often possible to change the washer in the valve; it involves unclipping the solenoid bit and then unscrewing the pole thing it fits over with a peg spanner in the base. This is an "undocumented procedure" and AFAIK washers are not available as individual spares, so you'd need another valve anyway to take the washer out of.
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