The solenoid was burnt out and only the complete unit available for £30….which is more than the machine is worth.
carefully prised the frame open, lifted off the end-plate and slipped the coil out.
I had a dead Hotpoint 9577 washer , the fill-valve coil was exactly the same size and spec. (moulded into the plastic) removed coil and swapped into the Matsui frame…15 minutes spent and thirty quid saved 😀
Some coils are about 3 MM taller but the Hotpoint one had the correct bore as well.
thought I’d pass this on as it makes it worthwhile to repair this bit of tat.