Fabric conditioner is taken from the detergent tray by siphon action. Most likely flexible siphon pipe is blocked. Remove machine top, identify the pipe coming from the softener compartment, detach and clean.The siphon action to lift conditioner is generally activated by a mechanical linkage from on of the cams on the programmer. Some other machines have a small motor to activate the conditioner dispenser. Check any linkages, after that disassemble the dispenser body to check for internal blockages in the air channels. Unless you have a cold fill only machine, the powder is washed down by hot water, so if it is not, then the hot valve is not working.The hot water pipes tend to kink after a time and this prevents water from passing, or it could be scale from the hot tank clogging the filter in the soleniod(this occurs if work has been done on the plumbing recently), the other possibility is that the solenoid valve could be faulty.
Repair and service your own washing machine. Go to www.2ndwave.co.uk/manual.html
dannyboy, October 2008