I'm working with an HP 6890 and I'm getting the oven shutdown error. Both oven flaps seem to open and close normally, and the oven door is latched. When I set the temperature to anything above 35°C, the oven struggles to get up to 40°C and then shuts down. When I set it to 35, the oven flaps keep opening and closing as the temperature fluctuates between 34-36. Should I assume this is an electrical issue? Any help is greatly appreciated, thank you!