I have had the Bosch SGS5313GB Dishwasher for a few years. It too would not heat up and would just continue in the wash cycle. Having found this site I followed previous contributors advice for repairing the PCB by re-soldering the terminal. As others have said it was blackened and so easy to identify. Clean it up, resolder and now everything works perfectly.

I am not an electrical engineer, but I do own a soldering iron. It really wasn't difficult. In fact the most difficult thing was getting the polythene cover back on the pcb which was a little tricky and needed patience

Our 5312 went the way of all others - yes the control panel went. I spoke to Bosch Service who sent an engineer, who replaced the £87 component, "as a gesture of goodwill"; the labour cost £60. I was pretty impressed by this - and indeed by the excellent service engineer who was very professional. By the way I quoted the above issure re the control panel to Bosch before they came out - this seemd to help get us a free replacement.