Yes. I took the top off the washing machine, removed the complete dispenser compartment, dismantled it, cleaned it and then sprayed water from a hose pipe down all 3 inlets and the water flowed freely out of all holes in the dispenser top. this indicates to me that the holes and channels leading to the holes are clear with no obstructions.
I then refitted all components but still the fabric conditioner remained in the draw after a full wash cycle.
Replaced the main water inlet valve, now the fabric conditioner has all gone from the dispenser draw.
Perfect answer washing machine is now working perfectly again.
Thanks again for your help