peljob eb25.4 approx 1997?

Hi i have a peljob eb25.4 and it has a problem, it shows FC5.6 on the electronic readout (starting panel), once it starts it will run all day with a bleeper constantly sounding but when i switch it off and try starting it again it will turn over but not start this is when it displays FC5.6 can anybody please help? thanks Dave