this brand of appliance suffers with weak PCB's (modules). sometimes examination will reveal dry joints that can be resoldered / if not then replacement is necessary. unplug appliance from electric supply ~ remove lid/rear panel ~ module is a rectangular shaped printed circuit board with wiring connections / connector plugs ~ either unclip / unscrew from cabinet noting wiring colour/postion etc. ~ examine & repair/replace.
Nigel (glotech service engineer), December 2005