My Diplomat Oven - ADP 3101/3 - B11 no longer heats the oven to the required temperature. The grill and fan still work and the oven works but it only heats to approx 50 deg and does not get any hotter? Is there a thermostat which can be replaced? There is no manuals with the oven so if anyone could advise were i could find that would be helpfull also?

jason, July 2009