Ok i think the model is RD3.Have checked power supply from timer to module(grant) seems fine.Heating cut out.Mum thought it was out of oil but i know there was plenty there.Re-start is out of action and not lighting up.
Is there a fuse on these boilers?Oil a plenty and power to unit o.k
Any help or suggestions i,d be most grateful.
Cheers S. :?