hotpoint aquarius FDF784 Not working

I have had my hotpoint aquarius FDF784 for about 2 years and just recently it started to beep a couple of times during use also occasionally had problems switching it off when it finished. Today I went to switch on but nothing happened at all nothing lit up or beeped just nothing – does this mean I need to get someone to look at it and if it needs it needs a new PCB is it worth it because I just looked one up and it was around £100 – which on top of labour might be cheaper to buy a new one?? Any suggestions??