belling112 Farmhouse cook center dual fuel cooker?

I have a problem with my cooker.The electric section is not working at all,the gas section is working fine.There is a voltage to the terminal block at back of the cooker.No electric on the oven element or the oven fan motor,also no electric on the grill cooling fan.There is a small PCB called MAN 925at back of the cooker with terminals L,N,T1,T2,T3,T4 O/P,there is a voltage between L & N,but nothing on O/P also I want to know what are the other terminals.The main timer is temperamental i.e the bell keeps ringing,I suspect a faulty timer.
Do you thick if the main timer stop working it will effect the cooker.Please help