Hi Matt. 99{e5d1b7155a01ef1f3b9c9968eaba33524ee81600d00d4be2b4d93ac2e58cec2d} sure the heat pump ( that is a heater/motor as one unit ) has gone u/s. Very very common problem ( and Bosch know this but will not admit it ) and can be soon repeatable ( on 8 different models ) which is why I gave up, in the end, all dishwasher repairs as a replacement Bosch heat pump lasted just under 3 mins until it blew the trip and that was the final straw. Jump onto Bosch uk spares site, type in your model number but you are missing 2 numbers at the end of SMV40C30GB/?? find the part see how much it is, weep a lot then complain like hell, but nicely, to Bosch. If it is any consolation Hotpoint and Indesit d/washers are just as much a load of cr*p as Bosch / Neff / Siemens. The least trouble I ever had was with Pro Action, some Kenwoods and entry level Beko = the less you pay the more reliable the appliance; strange old world mind you if you were looking for any glimmer of any sense you will seldom come across it in the domestic appliance trade!